./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-atomic/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-atomic/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 27e2f315de443e202cbc54a2cdc7db0fe3a55a0e ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 02:45:35,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 02:45:35,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 02:45:35,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 02:45:35,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 02:45:35,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 02:45:35,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 02:45:35,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 02:45:35,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 02:45:35,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 02:45:35,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 02:45:35,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 02:45:35,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 02:45:35,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 02:45:35,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 02:45:35,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 02:45:35,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 02:45:35,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 02:45:35,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 02:45:35,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 02:45:35,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 02:45:35,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 02:45:35,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 02:45:35,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 02:45:35,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 02:45:35,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 02:45:35,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 02:45:35,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 02:45:35,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 02:45:35,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 02:45:35,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 02:45:35,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 02:45:35,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 02:45:35,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 02:45:35,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 02:45:35,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 02:45:35,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 02:45:35,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 02:45:35,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 02:45:35,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 02:45:35,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 02:45:35,424 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 02:45:35,447 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 02:45:35,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 02:45:35,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 02:45:35,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 02:45:35,449 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 02:45:35,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 02:45:35,449 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 02:45:35,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 02:45:35,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 02:45:35,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 02:45:35,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 02:45:35,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 02:45:35,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 02:45:35,451 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 02:45:35,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 02:45:35,451 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 02:45:35,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 02:45:35,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 02:45:35,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 02:45:35,452 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 02:45:35,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 02:45:35,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 02:45:35,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 02:45:35,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 02:45:35,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 02:45:35,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 02:45:35,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 02:45:35,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 02:45:35,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 02:45:35,454 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 -> 27e2f315de443e202cbc54a2cdc7db0fe3a55a0e [2020-10-20 02:45:35,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 02:45:35,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 02:45:35,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 02:45:35,698 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 02:45:35,700 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 02:45:35,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2020-10-20 02:45:35,781 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a7546abf/31f8003862324394893f9145cc79e317/FLAGc0293aff3 [2020-10-20 02:45:36,340 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 02:45:36,343 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/time_var_mutex.i [2020-10-20 02:45:36,357 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a7546abf/31f8003862324394893f9145cc79e317/FLAGc0293aff3 [2020-10-20 02:45:36,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a7546abf/31f8003862324394893f9145cc79e317 [2020-10-20 02:45:36,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 02:45:36,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 02:45:36,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 02:45:36,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 02:45:36,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 02:45:36,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 02:45:36" (1/1) ... [2020-10-20 02:45:36,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c78fd07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:36, skipping insertion in model container [2020-10-20 02:45:36,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 02:45:36" (1/1) ... [2020-10-20 02:45:36,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 02:45:36,833 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 02:45:37,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 02:45:37,280 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 02:45:37,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 02:45:37,435 INFO L208 MainTranslator]: Completed translation [2020-10-20 02:45:37,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:37 WrapperNode [2020-10-20 02:45:37,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 02:45:37,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 02:45:37,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 02:45:37,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 02:45:37,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:37" (1/1) ... [2020-10-20 02:45:37,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:37" (1/1) ... [2020-10-20 02:45:37,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 02:45:37,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 02:45:37,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 02:45:37,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 02:45:37,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:37" (1/1) ... [2020-10-20 02:45:37,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:37" (1/1) ... [2020-10-20 02:45:37,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:37" (1/1) ... [2020-10-20 02:45:37,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:37" (1/1) ... [2020-10-20 02:45:37,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:37" (1/1) ... [2020-10-20 02:45:37,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:37" (1/1) ... [2020-10-20 02:45:37,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:37" (1/1) ... [2020-10-20 02:45:37,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 02:45:37,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 02:45:37,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 02:45:37,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 02:45:37,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:37" (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 02:45:37,614 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2020-10-20 02:45:37,614 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2020-10-20 02:45:37,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 02:45:37,614 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2020-10-20 02:45:37,615 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2020-10-20 02:45:37,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 02:45:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-20 02:45:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 02:45:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 02:45:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 02:45:37,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 02:45:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 02:45:37,618 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 02:45:38,048 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 02:45:38,049 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-20 02:45:38,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:45:38 BoogieIcfgContainer [2020-10-20 02:45:38,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 02:45:38,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 02:45:38,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 02:45:38,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 02:45:38,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 02:45:36" (1/3) ... [2020-10-20 02:45:38,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13993ef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 02:45:38, skipping insertion in model container [2020-10-20 02:45:38,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:45:37" (2/3) ... [2020-10-20 02:45:38,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13993ef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 02:45:38, skipping insertion in model container [2020-10-20 02:45:38,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:45:38" (3/3) ... [2020-10-20 02:45:38,061 INFO L111 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2020-10-20 02:45:38,073 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 02:45:38,074 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 02:45:38,087 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-20 02:45:38,089 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 02:45:38,135 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,136 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,136 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,136 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,137 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,137 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,137 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,137 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,138 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,138 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,138 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,138 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,139 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,139 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,140 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,140 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,140 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,140 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,141 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,141 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,141 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,141 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,142 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,142 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,142 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,142 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,146 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,147 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,147 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,147 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,147 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,148 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,148 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,148 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,162 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,162 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,162 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,162 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,162 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,163 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,163 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:45:38,170 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-10-20 02:45:38,185 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-20 02:45:38,204 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 02:45:38,204 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 02:45:38,204 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 02:45:38,204 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 02:45:38,204 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 02:45:38,204 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 02:45:38,205 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 02:45:38,205 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 02:45:38,219 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 02:45:38,222 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 96 places, 98 transitions, 218 flow [2020-10-20 02:45:38,224 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 96 places, 98 transitions, 218 flow [2020-10-20 02:45:38,226 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 96 places, 98 transitions, 218 flow [2020-10-20 02:45:38,279 INFO L129 PetriNetUnfolder]: 8/98 cut-off events. [2020-10-20 02:45:38,279 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-20 02:45:38,291 INFO L80 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 98 events. 8/98 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 139 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2020-10-20 02:45:38,297 INFO L117 LiptonReduction]: Number of co-enabled transitions 1376 [2020-10-20 02:45:40,048 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-10-20 02:45:40,504 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-20 02:45:40,630 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-20 02:45:41,448 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 137 [2020-10-20 02:45:41,749 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-20 02:45:41,770 INFO L132 LiptonReduction]: Checked pairs total: 4493 [2020-10-20 02:45:41,770 INFO L134 LiptonReduction]: Total number of compositions: 94 [2020-10-20 02:45:41,778 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 33 transitions, 88 flow [2020-10-20 02:45:41,798 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 197 states. [2020-10-20 02:45:41,801 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2020-10-20 02:45:41,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-20 02:45:41,808 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:41,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-20 02:45:41,809 INFO L429 AbstractCegarLoop]: === Iteration 1 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:41,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:41,815 INFO L82 PathProgramCache]: Analyzing trace with hash 370145274, now seen corresponding path program 1 times [2020-10-20 02:45:41,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:41,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97937013] [2020-10-20 02:45:41,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:42,029 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 02:45:42,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97937013] [2020-10-20 02:45:42,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:42,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:45:42,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472474354] [2020-10-20 02:45:42,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:45:42,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:42,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:45:42,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:45:42,055 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 3 states. [2020-10-20 02:45:42,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:42,092 INFO L93 Difference]: Finished difference Result 197 states and 434 transitions. [2020-10-20 02:45:42,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:45:42,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-20 02:45:42,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:42,109 INFO L225 Difference]: With dead ends: 197 [2020-10-20 02:45:42,110 INFO L226 Difference]: Without dead ends: 167 [2020-10-20 02:45:42,111 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 02:45:42,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-10-20 02:45:42,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2020-10-20 02:45:42,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-10-20 02:45:42,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 363 transitions. [2020-10-20 02:45:42,172 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 363 transitions. Word has length 5 [2020-10-20 02:45:42,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:42,172 INFO L481 AbstractCegarLoop]: Abstraction has 167 states and 363 transitions. [2020-10-20 02:45:42,173 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:45:42,173 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 363 transitions. [2020-10-20 02:45:42,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 02:45:42,175 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:42,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:42,176 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 02:45:42,176 INFO L429 AbstractCegarLoop]: === Iteration 2 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:42,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:42,176 INFO L82 PathProgramCache]: Analyzing trace with hash -791989179, now seen corresponding path program 1 times [2020-10-20 02:45:42,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:42,177 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466627097] [2020-10-20 02:45:42,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:42,277 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 02:45:42,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466627097] [2020-10-20 02:45:42,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:42,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:45:42,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258682833] [2020-10-20 02:45:42,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:45:42,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:42,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:45:42,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:45:42,280 INFO L87 Difference]: Start difference. First operand 167 states and 363 transitions. Second operand 3 states. [2020-10-20 02:45:42,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:42,308 INFO L93 Difference]: Finished difference Result 182 states and 370 transitions. [2020-10-20 02:45:42,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:45:42,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-20 02:45:42,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:42,310 INFO L225 Difference]: With dead ends: 182 [2020-10-20 02:45:42,311 INFO L226 Difference]: Without dead ends: 157 [2020-10-20 02:45:42,312 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 02:45:42,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-10-20 02:45:42,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 143. [2020-10-20 02:45:42,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-10-20 02:45:42,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 302 transitions. [2020-10-20 02:45:42,329 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 302 transitions. Word has length 7 [2020-10-20 02:45:42,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:42,330 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 302 transitions. [2020-10-20 02:45:42,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:45:42,330 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 302 transitions. [2020-10-20 02:45:42,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 02:45:42,331 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:42,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:42,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 02:45:42,332 INFO L429 AbstractCegarLoop]: === Iteration 3 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:42,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:42,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1802702046, now seen corresponding path program 1 times [2020-10-20 02:45:42,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:42,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141858899] [2020-10-20 02:45:42,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:42,384 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 02:45:42,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141858899] [2020-10-20 02:45:42,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:42,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:45:42,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602817549] [2020-10-20 02:45:42,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:45:42,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:42,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:45:42,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:45:42,387 INFO L87 Difference]: Start difference. First operand 143 states and 302 transitions. Second operand 3 states. [2020-10-20 02:45:42,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:42,411 INFO L93 Difference]: Finished difference Result 138 states and 278 transitions. [2020-10-20 02:45:42,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:45:42,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 02:45:42,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:42,413 INFO L225 Difference]: With dead ends: 138 [2020-10-20 02:45:42,413 INFO L226 Difference]: Without dead ends: 84 [2020-10-20 02:45:42,413 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 02:45:42,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-10-20 02:45:42,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-10-20 02:45:42,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-10-20 02:45:42,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 151 transitions. [2020-10-20 02:45:42,423 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 151 transitions. Word has length 8 [2020-10-20 02:45:42,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:42,423 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 151 transitions. [2020-10-20 02:45:42,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:45:42,424 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 151 transitions. [2020-10-20 02:45:42,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 02:45:42,425 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:42,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:42,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 02:45:42,425 INFO L429 AbstractCegarLoop]: === Iteration 4 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:42,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:42,426 INFO L82 PathProgramCache]: Analyzing trace with hash 762481646, now seen corresponding path program 1 times [2020-10-20 02:45:42,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:42,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303186855] [2020-10-20 02:45:42,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:42,500 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 02:45:42,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303186855] [2020-10-20 02:45:42,503 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:42,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 02:45:42,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520121321] [2020-10-20 02:45:42,504 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:45:42,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:42,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:45:42,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:45:42,505 INFO L87 Difference]: Start difference. First operand 84 states and 151 transitions. Second operand 3 states. [2020-10-20 02:45:42,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:42,518 INFO L93 Difference]: Finished difference Result 84 states and 145 transitions. [2020-10-20 02:45:42,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:45:42,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-20 02:45:42,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:42,522 INFO L225 Difference]: With dead ends: 84 [2020-10-20 02:45:42,523 INFO L226 Difference]: Without dead ends: 72 [2020-10-20 02:45:42,523 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 02:45:42,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-20 02:45:42,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-20 02:45:42,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-20 02:45:42,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 124 transitions. [2020-10-20 02:45:42,534 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 124 transitions. Word has length 12 [2020-10-20 02:45:42,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:42,535 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 124 transitions. [2020-10-20 02:45:42,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:45:42,535 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 124 transitions. [2020-10-20 02:45:42,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 02:45:42,536 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:45:42,536 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:45:42,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 02:45:42,536 INFO L429 AbstractCegarLoop]: === Iteration 5 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:45:42,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:45:42,537 INFO L82 PathProgramCache]: Analyzing trace with hash 630959256, now seen corresponding path program 1 times [2020-10-20 02:45:42,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:45:42,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959221194] [2020-10-20 02:45:42,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:45:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:45:42,583 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 02:45:42,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959221194] [2020-10-20 02:45:42,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:45:42,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 02:45:42,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707005501] [2020-10-20 02:45:42,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 02:45:42,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:45:42,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 02:45:42,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 02:45:42,586 INFO L87 Difference]: Start difference. First operand 72 states and 124 transitions. Second operand 4 states. [2020-10-20 02:45:42,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:45:42,611 INFO L93 Difference]: Finished difference Result 22 states and 35 transitions. [2020-10-20 02:45:42,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 02:45:42,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-20 02:45:42,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:45:42,612 INFO L225 Difference]: With dead ends: 22 [2020-10-20 02:45:42,612 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 02:45:42,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 02:45:42,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 02:45:42,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 02:45:42,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 02:45:42,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 02:45:42,613 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-20 02:45:42,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:45:42,614 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 02:45:42,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 02:45:42,614 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 02:45:42,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 02:45:42,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 02:45:42,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 02:45:42 BasicIcfg [2020-10-20 02:45:42,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 02:45:42,619 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 02:45:42,619 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 02:45:42,619 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 02:45:42,620 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:45:38" (3/4) ... [2020-10-20 02:45:42,624 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 02:45:42,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure allocator [2020-10-20 02:45:42,632 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure de_allocator [2020-10-20 02:45:42,637 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-10-20 02:45:42,637 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 02:45:42,638 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 02:45:42,638 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 02:45:42,689 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 02:45:42,689 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 02:45:42,691 INFO L168 Benchmark]: Toolchain (without parser) took 5921.22 ms. Allocated memory was 34.6 MB in the beginning and 74.4 MB in the end (delta: 39.8 MB). Free memory was 10.3 MB in the beginning and 12.6 MB in the end (delta: -2.3 MB). Peak memory consumption was 37.5 MB. Max. memory is 14.3 GB. [2020-10-20 02:45:42,692 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 33.6 MB. Free memory was 18.6 MB in the beginning and 18.6 MB in the end (delta: 41.9 kB). Peak memory consumption was 41.9 kB. Max. memory is 14.3 GB. [2020-10-20 02:45:42,692 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.00 ms. Allocated memory was 34.6 MB in the beginning and 44.0 MB in the end (delta: 9.4 MB). Free memory was 9.3 MB in the beginning and 17.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. [2020-10-20 02:45:42,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.92 ms. Allocated memory is still 44.0 MB. Free memory was 17.7 MB in the beginning and 15.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. [2020-10-20 02:45:42,693 INFO L168 Benchmark]: Boogie Preprocessor took 27.86 ms. Allocated memory is still 44.0 MB. Free memory was 15.4 MB in the beginning and 13.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 02:45:42,694 INFO L168 Benchmark]: RCFGBuilder took 510.46 ms. Allocated memory was 44.0 MB in the beginning and 45.1 MB in the end (delta: 1.0 MB). Free memory was 13.7 MB in the beginning and 17.7 MB in the end (delta: -4.0 MB). Peak memory consumption was 4.4 MB. Max. memory is 14.3 GB. [2020-10-20 02:45:42,695 INFO L168 Benchmark]: TraceAbstraction took 4566.08 ms. Allocated memory was 45.1 MB in the beginning and 74.4 MB in the end (delta: 29.4 MB). Free memory was 17.2 MB in the beginning and 16.3 MB in the end (delta: 926.8 kB). Peak memory consumption was 30.3 MB. Max. memory is 14.3 GB. [2020-10-20 02:45:42,695 INFO L168 Benchmark]: Witness Printer took 70.02 ms. Allocated memory is still 74.4 MB. Free memory was 16.3 MB in the beginning and 12.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. [2020-10-20 02:45:42,700 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 33.6 MB. Free memory was 18.6 MB in the beginning and 18.6 MB in the end (delta: 41.9 kB). Peak memory consumption was 41.9 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 661.00 ms. Allocated memory was 34.6 MB in the beginning and 44.0 MB in the end (delta: 9.4 MB). Free memory was 9.3 MB in the beginning and 17.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 74.92 ms. Allocated memory is still 44.0 MB. Free memory was 17.7 MB in the beginning and 15.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 27.86 ms. Allocated memory is still 44.0 MB. Free memory was 15.4 MB in the beginning and 13.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 510.46 ms. Allocated memory was 44.0 MB in the beginning and 45.1 MB in the end (delta: 1.0 MB). Free memory was 13.7 MB in the beginning and 17.7 MB in the end (delta: -4.0 MB). Peak memory consumption was 4.4 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4566.08 ms. Allocated memory was 45.1 MB in the beginning and 74.4 MB in the end (delta: 29.4 MB). Free memory was 17.2 MB in the beginning and 16.3 MB in the end (delta: 926.8 kB). Peak memory consumption was 30.3 MB. Max. memory is 14.3 GB. * Witness Printer took 70.02 ms. Allocated memory is still 74.4 MB. Free memory was 16.3 MB in the beginning and 12.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1123 VarBasedMoverChecksPositive, 105 VarBasedMoverChecksNegative, 65 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 204 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.5s, 96 PlacesBefore, 34 PlacesAfterwards, 98 TransitionsBefore, 33 TransitionsAfterwards, 1376 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 15 ConcurrentYvCompositions, 3 ChoiceCompositions, 94 TotalNumberOfCompositions, 4493 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 3 procedures, 90 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 125 SDtfs, 68 SDslu, 60 SDs, 0 SdLazy, 20 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred 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, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 723 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...