./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-ext/19_time_var_mutex.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/19_time_var_mutex.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 904cabafc2d58f886ae8fd3bb175ba564907ec04 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 02:47:03,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 02:47:03,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 02:47:03,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 02:47:03,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 02:47:03,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 02:47:03,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 02:47:03,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 02:47:03,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 02:47:03,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 02:47:03,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 02:47:03,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 02:47:03,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 02:47:03,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 02:47:03,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 02:47:03,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 02:47:03,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 02:47:03,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 02:47:03,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 02:47:03,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 02:47:03,330 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 02:47:03,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 02:47:03,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 02:47:03,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 02:47:03,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 02:47:03,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 02:47:03,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 02:47:03,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 02:47:03,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 02:47:03,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 02:47:03,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 02:47:03,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 02:47:03,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 02:47:03,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 02:47:03,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 02:47:03,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 02:47:03,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 02:47:03,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 02:47:03,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 02:47:03,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 02:47:03,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 02:47:03,358 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 02:47:03,409 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 02:47:03,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 02:47:03,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 02:47:03,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 02:47:03,412 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 02:47:03,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 02:47:03,412 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 02:47:03,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 02:47:03,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 02:47:03,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 02:47:03,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 02:47:03,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 02:47:03,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 02:47:03,416 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 02:47:03,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 02:47:03,416 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 02:47:03,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 02:47:03,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 02:47:03,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 02:47:03,417 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 02:47:03,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 02:47:03,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 02:47:03,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 02:47:03,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 02:47:03,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 02:47:03,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 02:47:03,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 02:47:03,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 02:47:03,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 02:47:03,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 904cabafc2d58f886ae8fd3bb175ba564907ec04 [2020-10-20 02:47:03,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 02:47:03,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 02:47:03,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 02:47:03,681 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 02:47:03,682 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 02:47:03,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/19_time_var_mutex.i [2020-10-20 02:47:03,749 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed04d1b0f/5263bde3b2764cefb75c4c18b681bea3/FLAGeaf2d160c [2020-10-20 02:47:04,189 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 02:47:04,190 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/19_time_var_mutex.i [2020-10-20 02:47:04,204 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed04d1b0f/5263bde3b2764cefb75c4c18b681bea3/FLAGeaf2d160c [2020-10-20 02:47:04,515 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed04d1b0f/5263bde3b2764cefb75c4c18b681bea3 [2020-10-20 02:47:04,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 02:47:04,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 02:47:04,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 02:47:04,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 02:47:04,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 02:47:04,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 02:47:04" (1/1) ... [2020-10-20 02:47:04,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e87a5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:04, skipping insertion in model container [2020-10-20 02:47:04,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 02:47:04" (1/1) ... [2020-10-20 02:47:04,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 02:47:04,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 02:47:05,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 02:47:05,044 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 02:47:05,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 02:47:05,169 INFO L208 MainTranslator]: Completed translation [2020-10-20 02:47:05,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:05 WrapperNode [2020-10-20 02:47:05,170 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 02:47:05,171 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 02:47:05,171 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 02:47:05,171 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 02:47:05,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:05" (1/1) ... [2020-10-20 02:47:05,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:05" (1/1) ... [2020-10-20 02:47:05,226 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 02:47:05,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 02:47:05,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 02:47:05,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 02:47:05,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:05" (1/1) ... [2020-10-20 02:47:05,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:05" (1/1) ... [2020-10-20 02:47:05,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:05" (1/1) ... [2020-10-20 02:47:05,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:05" (1/1) ... [2020-10-20 02:47:05,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:05" (1/1) ... [2020-10-20 02:47:05,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:05" (1/1) ... [2020-10-20 02:47:05,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:05" (1/1) ... [2020-10-20 02:47:05,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 02:47:05,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 02:47:05,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 02:47:05,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 02:47:05,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:05" (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 [2020-10-20 02:47:05,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 02:47:05,326 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-20 02:47:05,326 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-20 02:47:05,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 02:47:05,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 02:47:05,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 02:47:05,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 02:47:05,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 02:47:05,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 02:47:05,329 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-20 02:47:06,264 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 02:47:06,264 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 02:47:06,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:47:06 BoogieIcfgContainer [2020-10-20 02:47:06,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 02:47:06,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 02:47:06,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 02:47:06,273 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 02:47:06,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 02:47:04" (1/3) ... [2020-10-20 02:47:06,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502a33d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 02:47:06, skipping insertion in model container [2020-10-20 02:47:06,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:05" (2/3) ... [2020-10-20 02:47:06,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502a33d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 02:47:06, skipping insertion in model container [2020-10-20 02:47:06,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:47:06" (3/3) ... [2020-10-20 02:47:06,279 INFO L111 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2020-10-20 02:47:06,293 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 02:47:06,293 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 02:47:06,301 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-20 02:47:06,303 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 02:47:06,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,330 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,330 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,331 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,332 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,332 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,332 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,332 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,333 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,333 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,333 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,334 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,334 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,335 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,335 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,335 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,335 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,336 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,336 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,336 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,337 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,337 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,338 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,338 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,338 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,338 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,339 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,339 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,339 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,339 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,340 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,340 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,340 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,341 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,345 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,345 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,346 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,346 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,346 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,347 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,347 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,347 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,347 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,348 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,348 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,348 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,348 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,349 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,349 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,349 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,349 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,350 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:06,353 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 02:47:06,369 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-20 02:47:06,390 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 02:47:06,390 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 02:47:06,391 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 02:47:06,391 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 02:47:06,391 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 02:47:06,391 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 02:47:06,392 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 02:47:06,392 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 02:47:06,407 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 02:47:06,410 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 68 transitions, 141 flow [2020-10-20 02:47:06,414 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 68 transitions, 141 flow [2020-10-20 02:47:06,416 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 66 places, 68 transitions, 141 flow [2020-10-20 02:47:06,457 INFO L129 PetriNetUnfolder]: 6/67 cut-off events. [2020-10-20 02:47:06,457 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 02:47:06,463 INFO L80 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 67 events. 6/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 97 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 48. Up to 3 conditions per place. [2020-10-20 02:47:06,466 INFO L117 LiptonReduction]: Number of co-enabled transitions 1134 [2020-10-20 02:47:08,754 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-10-20 02:47:09,504 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-20 02:47:09,650 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-20 02:47:09,812 INFO L132 LiptonReduction]: Checked pairs total: 2762 [2020-10-20 02:47:09,812 INFO L134 LiptonReduction]: Total number of compositions: 74 [2020-10-20 02:47:09,820 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 21 transitions, 47 flow [2020-10-20 02:47:09,833 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 65 states. [2020-10-20 02:47:09,835 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2020-10-20 02:47:09,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-20 02:47:09,843 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:47:09,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-20 02:47:09,844 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:47:09,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:47:09,851 INFO L82 PathProgramCache]: Analyzing trace with hash 471201578, now seen corresponding path program 1 times [2020-10-20 02:47:09,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:47:09,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177426234] [2020-10-20 02:47:09,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:47:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:47:10,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:47:10,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177426234] [2020-10-20 02:47:10,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:47:10,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:47:10,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997012486] [2020-10-20 02:47:10,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:47:10,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:47:10,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:47:10,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:47:10,122 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 3 states. [2020-10-20 02:47:10,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:47:10,182 INFO L93 Difference]: Finished difference Result 72 states and 127 transitions. [2020-10-20 02:47:10,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:47:10,185 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-20 02:47:10,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:47:10,199 INFO L225 Difference]: With dead ends: 72 [2020-10-20 02:47:10,200 INFO L226 Difference]: Without dead ends: 56 [2020-10-20 02:47:10,204 INFO L677 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 [2020-10-20 02:47:10,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-20 02:47:10,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2020-10-20 02:47:10,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-20 02:47:10,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 96 transitions. [2020-10-20 02:47:10,262 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 96 transitions. Word has length 5 [2020-10-20 02:47:10,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:47:10,263 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 96 transitions. [2020-10-20 02:47:10,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:47:10,263 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 96 transitions. [2020-10-20 02:47:10,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-20 02:47:10,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:47:10,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-20 02:47:10,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 02:47:10,265 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:47:10,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:47:10,265 INFO L82 PathProgramCache]: Analyzing trace with hash 471188550, now seen corresponding path program 1 times [2020-10-20 02:47:10,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:47:10,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996344] [2020-10-20 02:47:10,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:47:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:47:10,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:47:10,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996344] [2020-10-20 02:47:10,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:47:10,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:47:10,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164040660] [2020-10-20 02:47:10,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:47:10,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:47:10,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:47:10,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:47:10,313 INFO L87 Difference]: Start difference. First operand 52 states and 96 transitions. Second operand 3 states. [2020-10-20 02:47:10,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:47:10,320 INFO L93 Difference]: Finished difference Result 52 states and 90 transitions. [2020-10-20 02:47:10,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:47:10,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-20 02:47:10,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:47:10,322 INFO L225 Difference]: With dead ends: 52 [2020-10-20 02:47:10,322 INFO L226 Difference]: Without dead ends: 52 [2020-10-20 02:47:10,323 INFO L677 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 [2020-10-20 02:47:10,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-20 02:47:10,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-20 02:47:10,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-20 02:47:10,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 90 transitions. [2020-10-20 02:47:10,334 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 90 transitions. Word has length 5 [2020-10-20 02:47:10,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:47:10,335 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 90 transitions. [2020-10-20 02:47:10,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:47:10,335 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 90 transitions. [2020-10-20 02:47:10,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 02:47:10,336 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:47:10,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:47:10,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 02:47:10,336 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:47:10,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:47:10,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1212975160, now seen corresponding path program 1 times [2020-10-20 02:47:10,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:47:10,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750717146] [2020-10-20 02:47:10,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:47:10,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:47:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:47:10,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750717146] [2020-10-20 02:47:10,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:47:10,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:47:10,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515030047] [2020-10-20 02:47:10,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:47:10,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:47:10,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:47:10,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:47:10,407 INFO L87 Difference]: Start difference. First operand 52 states and 90 transitions. Second operand 3 states. [2020-10-20 02:47:10,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:47:10,433 INFO L93 Difference]: Finished difference Result 49 states and 80 transitions. [2020-10-20 02:47:10,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:47:10,433 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 02:47:10,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:47:10,434 INFO L225 Difference]: With dead ends: 49 [2020-10-20 02:47:10,434 INFO L226 Difference]: Without dead ends: 31 [2020-10-20 02:47:10,434 INFO L677 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 [2020-10-20 02:47:10,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-20 02:47:10,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-20 02:47:10,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-20 02:47:10,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-10-20 02:47:10,439 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 8 [2020-10-20 02:47:10,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:47:10,440 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-10-20 02:47:10,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:47:10,440 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-10-20 02:47:10,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 02:47:10,441 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:47:10,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:47:10,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 02:47:10,441 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:47:10,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:47:10,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1445548372, now seen corresponding path program 1 times [2020-10-20 02:47:10,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:47:10,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827613564] [2020-10-20 02:47:10,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:47:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:47:10,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:47:10,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827613564] [2020-10-20 02:47:10,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:47:10,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-20 02:47:10,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232400162] [2020-10-20 02:47:10,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 02:47:10,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:47:10,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 02:47:10,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 02:47:10,564 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 6 states. [2020-10-20 02:47:10,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:47:10,634 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2020-10-20 02:47:10,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 02:47:10,635 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-20 02:47:10,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:47:10,636 INFO L225 Difference]: With dead ends: 27 [2020-10-20 02:47:10,636 INFO L226 Difference]: Without dead ends: 23 [2020-10-20 02:47:10,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 02:47:10,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-20 02:47:10,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-20 02:47:10,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-20 02:47:10,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2020-10-20 02:47:10,640 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 10 [2020-10-20 02:47:10,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:47:10,640 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-10-20 02:47:10,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 02:47:10,641 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-10-20 02:47:10,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 02:47:10,641 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:47:10,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:47:10,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 02:47:10,642 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:47:10,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:47:10,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1735106384, now seen corresponding path program 2 times [2020-10-20 02:47:10,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:47:10,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536092465] [2020-10-20 02:47:10,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:47:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:47:10,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:47:10,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536092465] [2020-10-20 02:47:10,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:47:10,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 02:47:10,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561299358] [2020-10-20 02:47:10,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:47:10,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:47:10,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:47:10,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:47:10,680 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 3 states. [2020-10-20 02:47:10,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:47:10,685 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-10-20 02:47:10,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:47:10,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-20 02:47:10,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:47:10,686 INFO L225 Difference]: With dead ends: 8 [2020-10-20 02:47:10,686 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 02:47:10,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:47:10,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 02:47:10,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 02:47:10,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 02:47:10,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 02:47:10,687 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-10-20 02:47:10,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:47:10,688 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 02:47:10,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:47:10,688 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 02:47:10,688 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 02:47:10,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 02:47:10,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 02:47:10 BasicIcfg [2020-10-20 02:47:10,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 02:47:10,692 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 02:47:10,693 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 02:47:10,693 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 02:47:10,693 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:47:06" (3/4) ... [2020-10-20 02:47:10,697 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 02:47:10,704 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2020-10-20 02:47:10,710 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2020-10-20 02:47:10,710 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-20 02:47:10,711 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 02:47:10,711 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 02:47:10,765 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 02:47:10,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 02:47:10,767 INFO L168 Benchmark]: Toolchain (without parser) took 6247.57 ms. Allocated memory was 35.1 MB in the beginning and 87.6 MB in the end (delta: 52.4 MB). Free memory was 7.3 MB in the beginning and 34.4 MB in the end (delta: -27.1 MB). Peak memory consumption was 25.4 MB. Max. memory is 14.3 GB. [2020-10-20 02:47:10,768 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 34.1 MB. Free memory was 13.3 MB in the beginning and 13.3 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 02:47:10,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.10 ms. Allocated memory was 35.1 MB in the beginning and 46.1 MB in the end (delta: 11.0 MB). Free memory was 6.5 MB in the beginning and 21.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 14.3 GB. [2020-10-20 02:47:10,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.22 ms. Allocated memory is still 46.1 MB. Free memory was 21.0 MB in the beginning and 18.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 02:47:10,770 INFO L168 Benchmark]: Boogie Preprocessor took 31.14 ms. Allocated memory is still 46.1 MB. Free memory was 18.6 MB in the beginning and 16.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 02:47:10,771 INFO L168 Benchmark]: RCFGBuilder took 1009.30 ms. Allocated memory was 46.1 MB in the beginning and 52.4 MB in the end (delta: 6.3 MB). Free memory was 16.9 MB in the beginning and 29.1 MB in the end (delta: -12.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-20 02:47:10,771 INFO L168 Benchmark]: TraceAbstraction took 4423.04 ms. Allocated memory was 52.4 MB in the beginning and 87.6 MB in the end (delta: 35.1 MB). Free memory was 28.6 MB in the beginning and 37.9 MB in the end (delta: -9.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 14.3 GB. [2020-10-20 02:47:10,772 INFO L168 Benchmark]: Witness Printer took 73.26 ms. Allocated memory is still 87.6 MB. Free memory was 37.9 MB in the beginning and 34.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. [2020-10-20 02:47:10,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 34.1 MB. Free memory was 13.3 MB in the beginning and 13.3 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 645.10 ms. Allocated memory was 35.1 MB in the beginning and 46.1 MB in the end (delta: 11.0 MB). Free memory was 6.5 MB in the beginning and 21.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 56.22 ms. Allocated memory is still 46.1 MB. Free memory was 21.0 MB in the beginning and 18.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 31.14 ms. Allocated memory is still 46.1 MB. Free memory was 18.6 MB in the beginning and 16.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1009.30 ms. Allocated memory was 46.1 MB in the beginning and 52.4 MB in the end (delta: 6.3 MB). Free memory was 16.9 MB in the beginning and 29.1 MB in the end (delta: -12.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4423.04 ms. Allocated memory was 52.4 MB in the beginning and 87.6 MB in the end (delta: 35.1 MB). Free memory was 28.6 MB in the beginning and 37.9 MB in the end (delta: -9.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 14.3 GB. * Witness Printer took 73.26 ms. Allocated memory is still 87.6 MB. Free memory was 37.9 MB in the beginning and 34.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 836 VarBasedMoverChecksPositive, 104 VarBasedMoverChecksNegative, 60 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 95 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.3s, 66 PlacesBefore, 21 PlacesAfterwards, 68 TransitionsBefore, 21 TransitionsAfterwards, 1134 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 2762 MoverChecksTotal - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 63 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 72 SDtfs, 50 SDslu, 36 SDs, 0 SdLazy, 45 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 542 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...