./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_1.5.800.v20200727-1323.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/goblint-regression/13-privatized_18-first-reads_true.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 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 21:16:39,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 21:16:39,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 21:16:39,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 21:16:39,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 21:16:39,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 21:16:39,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 21:16:39,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 21:16:39,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 21:16:39,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 21:16:39,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 21:16:39,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 21:16:39,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 21:16:39,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 21:16:39,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 21:16:39,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 21:16:39,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 21:16:39,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 21:16:39,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 21:16:39,423 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 21:16:39,424 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 21:16:39,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 21:16:39,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 21:16:39,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 21:16:39,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 21:16:39,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 21:16:39,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 21:16:39,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 21:16:39,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 21:16:39,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 21:16:39,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 21:16:39,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 21:16:39,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 21:16:39,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 21:16:39,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 21:16:39,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 21:16:39,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 21:16:39,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 21:16:39,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 21:16:39,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 21:16:39,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 21:16:39,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 21:16:39,442 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 21:16:39,462 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 21:16:39,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 21:16:39,463 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 21:16:39,463 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 21:16:39,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 21:16:39,464 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 21:16:39,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 21:16:39,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 21:16:39,464 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 21:16:39,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 21:16:39,465 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 21:16:39,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 21:16:39,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 21:16:39,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 21:16:39,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 21:16:39,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 21:16:39,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 21:16:39,466 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 21:16:39,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 21:16:39,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 21:16:39,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 21:16:39,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 21:16:39,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 21:16:39,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 21:16:39,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:16:39,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 21:16:39,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 21:16:39,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 21:16:39,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 21:16:39,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 21:16:39,468 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 21:16:39,468 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 21:16:39,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 21:16:39,468 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3427cff38b27502f1724e7992c2bbd22dfeaf576101e50c5b78d18afb7a0563f [2022-07-19 21:16:39,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 21:16:39,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 21:16:39,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 21:16:39,700 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 21:16:39,700 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 21:16:39,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i [2022-07-19 21:16:39,765 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6c7b769/1ad6396dbba749d3b35d8a12d537e524/FLAGfac73f7dc [2022-07-19 21:16:40,171 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 21:16:40,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i [2022-07-19 21:16:40,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6c7b769/1ad6396dbba749d3b35d8a12d537e524/FLAGfac73f7dc [2022-07-19 21:16:40,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6c7b769/1ad6396dbba749d3b35d8a12d537e524 [2022-07-19 21:16:40,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 21:16:40,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 21:16:40,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 21:16:40,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 21:16:40,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 21:16:40,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:16:40" (1/1) ... [2022-07-19 21:16:40,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4afa6533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:40, skipping insertion in model container [2022-07-19 21:16:40,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:16:40" (1/1) ... [2022-07-19 21:16:40,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 21:16:40,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 21:16:40,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i[1088,1101] [2022-07-19 21:16:40,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:16:40,533 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 21:16:40,544 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_true.i[1088,1101] [2022-07-19 21:16:40,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 21:16:40,605 INFO L208 MainTranslator]: Completed translation [2022-07-19 21:16:40,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:40 WrapperNode [2022-07-19 21:16:40,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 21:16:40,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 21:16:40,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 21:16:40,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 21:16:40,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:40" (1/1) ... [2022-07-19 21:16:40,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:40" (1/1) ... [2022-07-19 21:16:40,642 INFO L137 Inliner]: procedures = 163, calls = 22, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 48 [2022-07-19 21:16:40,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 21:16:40,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 21:16:40,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 21:16:40,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 21:16:40,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:40" (1/1) ... [2022-07-19 21:16:40,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:40" (1/1) ... [2022-07-19 21:16:40,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:40" (1/1) ... [2022-07-19 21:16:40,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:40" (1/1) ... [2022-07-19 21:16:40,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:40" (1/1) ... [2022-07-19 21:16:40,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:40" (1/1) ... [2022-07-19 21:16:40,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:40" (1/1) ... [2022-07-19 21:16:40,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 21:16:40,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 21:16:40,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 21:16:40,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 21:16:40,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:40" (1/1) ... [2022-07-19 21:16:40,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 21:16:40,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 21:16:40,708 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 21:16:40,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 21:16:40,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 21:16:40,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 21:16:40,758 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-19 21:16:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 21:16:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 21:16:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-19 21:16:40,759 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-19 21:16:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 21:16:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 21:16:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 21:16:40,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 21:16:40,760 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-19 21:16:40,838 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 21:16:40,840 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 21:16:40,961 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 21:16:40,966 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 21:16:40,966 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 21:16:40,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:16:40 BoogieIcfgContainer [2022-07-19 21:16:40,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 21:16:40,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 21:16:40,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 21:16:40,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 21:16:40,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:16:40" (1/3) ... [2022-07-19 21:16:40,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572ce22d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:16:40, skipping insertion in model container [2022-07-19 21:16:40,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:16:40" (2/3) ... [2022-07-19 21:16:40,974 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@572ce22d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:16:40, skipping insertion in model container [2022-07-19 21:16:40,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:16:40" (3/3) ... [2022-07-19 21:16:40,975 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_true.i [2022-07-19 21:16:40,978 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-19 21:16:40,988 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 21:16:41,002 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 21:16:41,002 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-19 21:16:41,037 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-19 21:16:41,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 74 transitions, 156 flow [2022-07-19 21:16:41,108 INFO L129 PetriNetUnfolder]: 3/73 cut-off events. [2022-07-19 21:16:41,108 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-19 21:16:41,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 73 events. 3/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 34. Up to 2 conditions per place. [2022-07-19 21:16:41,111 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 74 transitions, 156 flow [2022-07-19 21:16:41,115 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 65 transitions, 133 flow [2022-07-19 21:16:41,127 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 21:16:41,132 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@27a69296, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@76336c27 [2022-07-19 21:16:41,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-19 21:16:41,143 INFO L129 PetriNetUnfolder]: 1/30 cut-off events. [2022-07-19 21:16:41,143 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-19 21:16:41,144 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:16:41,144 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:16:41,145 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-19 21:16:41,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:16:41,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1283893648, now seen corresponding path program 1 times [2022-07-19 21:16:41,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:16:41,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031700440] [2022-07-19 21:16:41,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:16:41,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:16:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:16:41,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:16:41,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:16:41,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031700440] [2022-07-19 21:16:41,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031700440] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:16:41,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:16:41,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 21:16:41,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089483174] [2022-07-19 21:16:41,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:16:41,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 21:16:41,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:16:41,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 21:16:41,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 21:16:41,416 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 74 [2022-07-19 21:16:41,430 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 65 transitions, 133 flow. Second operand has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 21:16:41,430 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:16:41,431 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 74 [2022-07-19 21:16:41,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:16:41,547 INFO L129 PetriNetUnfolder]: 28/152 cut-off events. [2022-07-19 21:16:41,547 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-19 21:16:41,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 152 events. 28/152 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 500 event pairs, 6 based on Foata normal form. 3/149 useless extension candidates. Maximal degree in co-relation 188. Up to 24 conditions per place. [2022-07-19 21:16:41,549 INFO L132 encePairwiseOnDemand]: 62/74 looper letters, 10 selfloop transitions, 9 changer transitions 21/81 dead transitions. [2022-07-19 21:16:41,549 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 81 transitions, 237 flow [2022-07-19 21:16:41,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 21:16:41,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-07-19 21:16:41,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 527 transitions. [2022-07-19 21:16:41,562 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7912912912912913 [2022-07-19 21:16:41,563 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 527 transitions. [2022-07-19 21:16:41,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 527 transitions. [2022-07-19 21:16:41,565 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:16:41,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 527 transitions. [2022-07-19 21:16:41,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 58.55555555555556) internal successors, (527), 9 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 21:16:41,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 21:16:41,577 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 21:16:41,579 INFO L186 Difference]: Start difference. First operand has 66 places, 65 transitions, 133 flow. Second operand 9 states and 527 transitions. [2022-07-19 21:16:41,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 81 transitions, 237 flow [2022-07-19 21:16:41,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 81 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-19 21:16:41,585 INFO L242 Difference]: Finished difference. Result has 73 places, 56 transitions, 146 flow [2022-07-19 21:16:41,588 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=146, PETRI_PLACES=73, PETRI_TRANSITIONS=56} [2022-07-19 21:16:41,591 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, 7 predicate places. [2022-07-19 21:16:41,591 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 56 transitions, 146 flow [2022-07-19 21:16:41,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.0) internal successors, (275), 5 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 21:16:41,591 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-19 21:16:41,592 INFO L200 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 21:16:41,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 21:16:41,592 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-07-19 21:16:41,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 21:16:41,593 INFO L85 PathProgramCache]: Analyzing trace with hash -479425025, now seen corresponding path program 1 times [2022-07-19 21:16:41,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 21:16:41,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093077388] [2022-07-19 21:16:41,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 21:16:41,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 21:16:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 21:16:41,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 21:16:41,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 21:16:41,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093077388] [2022-07-19 21:16:41,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093077388] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 21:16:41,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 21:16:41,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 21:16:41,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339128269] [2022-07-19 21:16:41,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 21:16:41,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 21:16:41,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 21:16:41,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 21:16:41,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 21:16:41,696 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 74 [2022-07-19 21:16:41,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 56 transitions, 146 flow. Second operand has 6 states, 6 states have (on average 47.166666666666664) internal successors, (283), 6 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 21:16:41,697 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-19 21:16:41,697 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 74 [2022-07-19 21:16:41,698 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-19 21:16:41,753 INFO L129 PetriNetUnfolder]: 0/45 cut-off events. [2022-07-19 21:16:41,753 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-07-19 21:16:41,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 45 events. 0/45 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 4/49 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2022-07-19 21:16:41,754 INFO L132 encePairwiseOnDemand]: 68/74 looper letters, 0 selfloop transitions, 0 changer transitions 45/45 dead transitions. [2022-07-19 21:16:41,754 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 45 transitions, 137 flow [2022-07-19 21:16:41,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 21:16:41,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-07-19 21:16:41,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 327 transitions. [2022-07-19 21:16:41,755 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.6312741312741312 [2022-07-19 21:16:41,756 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 327 transitions. [2022-07-19 21:16:41,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 327 transitions. [2022-07-19 21:16:41,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-19 21:16:41,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 327 transitions. [2022-07-19 21:16:41,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 46.714285714285715) internal successors, (327), 7 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 21:16:41,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 21:16:41,758 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 21:16:41,758 INFO L186 Difference]: Start difference. First operand has 73 places, 56 transitions, 146 flow. Second operand 7 states and 327 transitions. [2022-07-19 21:16:41,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 45 transitions, 137 flow [2022-07-19 21:16:41,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 45 transitions, 125 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-07-19 21:16:41,760 INFO L242 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2022-07-19 21:16:41,760 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2022-07-19 21:16:41,760 INFO L279 CegarLoopForPetriNet]: 66 programPoint places, -10 predicate places. [2022-07-19 21:16:41,761 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2022-07-19 21:16:41,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.166666666666664) internal successors, (283), 6 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 21:16:41,763 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-07-19 21:16:41,763 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-07-19 21:16:41,763 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-07-19 21:16:41,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 21:16:41,764 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-19 21:16:41,766 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-19 21:16:41,766 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 21:16:41,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 09:16:41 BasicIcfg [2022-07-19 21:16:41,770 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 21:16:41,770 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 21:16:41,770 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 21:16:41,771 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 21:16:41,771 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:16:40" (3/4) ... [2022-07-19 21:16:41,773 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 21:16:41,777 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-07-19 21:16:41,781 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-07-19 21:16:41,782 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-19 21:16:41,782 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 21:16:41,782 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 21:16:41,818 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 21:16:41,818 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 21:16:41,819 INFO L158 Benchmark]: Toolchain (without parser) took 1608.09ms. Allocated memory is still 111.1MB. Free memory was 78.5MB in the beginning and 58.0MB in the end (delta: 20.5MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2022-07-19 21:16:41,819 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory was 46.3MB in the beginning and 46.3MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 21:16:41,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.62ms. Allocated memory is still 111.1MB. Free memory was 78.2MB in the beginning and 78.3MB in the end (delta: -128.3kB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-07-19 21:16:41,820 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.77ms. Allocated memory is still 111.1MB. Free memory was 78.3MB in the beginning and 76.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 21:16:41,821 INFO L158 Benchmark]: Boogie Preprocessor took 16.12ms. Allocated memory is still 111.1MB. Free memory was 76.7MB in the beginning and 75.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 21:16:41,821 INFO L158 Benchmark]: RCFGBuilder took 307.45ms. Allocated memory is still 111.1MB. Free memory was 75.6MB in the beginning and 63.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 21:16:41,821 INFO L158 Benchmark]: TraceAbstraction took 799.13ms. Allocated memory is still 111.1MB. Free memory was 62.9MB in the beginning and 60.8MB in the end (delta: 2.1MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-07-19 21:16:41,822 INFO L158 Benchmark]: Witness Printer took 48.18ms. Allocated memory is still 111.1MB. Free memory was 60.8MB in the beginning and 58.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 21:16:41,823 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 88.1MB. Free memory was 46.3MB in the beginning and 46.3MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.62ms. Allocated memory is still 111.1MB. Free memory was 78.2MB in the beginning and 78.3MB in the end (delta: -128.3kB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.77ms. Allocated memory is still 111.1MB. Free memory was 78.3MB in the beginning and 76.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.12ms. Allocated memory is still 111.1MB. Free memory was 76.7MB in the beginning and 75.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 307.45ms. Allocated memory is still 111.1MB. Free memory was 75.6MB in the beginning and 63.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 799.13ms. Allocated memory is still 111.1MB. Free memory was 62.9MB in the beginning and 60.8MB in the end (delta: 2.1MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Witness Printer took 48.18ms. Allocated memory is still 111.1MB. Free memory was 60.8MB in the beginning and 58.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 19 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=146occurred in iteration=1, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 164 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-19 21:16:41,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE