./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_unknown_2_neg.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 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 08:49:33,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 08:49:33,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 08:49:33,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 08:49:33,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 08:49:33,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 08:49:33,280 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 08:49:33,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 08:49:33,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 08:49:33,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 08:49:33,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 08:49:33,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 08:49:33,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 08:49:33,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 08:49:33,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 08:49:33,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 08:49:33,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 08:49:33,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 08:49:33,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 08:49:33,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 08:49:33,313 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 08:49:33,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 08:49:33,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 08:49:33,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 08:49:33,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 08:49:33,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 08:49:33,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 08:49:33,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 08:49:33,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 08:49:33,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 08:49:33,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 08:49:33,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 08:49:33,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 08:49:33,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 08:49:33,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 08:49:33,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 08:49:33,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 08:49:33,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 08:49:33,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 08:49:33,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 08:49:33,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 08:49:33,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 08:49:33,345 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 08:49:33,381 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 08:49:33,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 08:49:33,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 08:49:33,383 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 08:49:33,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 08:49:33,384 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 08:49:33,385 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 08:49:33,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 08:49:33,385 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 08:49:33,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 08:49:33,386 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 08:49:33,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 08:49:33,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 08:49:33,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 08:49:33,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 08:49:33,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 08:49:33,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 08:49:33,388 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 08:49:33,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 08:49:33,388 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 08:49:33,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 08:49:33,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 08:49:33,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 08:49:33,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 08:49:33,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:49:33,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 08:49:33,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 08:49:33,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 08:49:33,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 08:49:33,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 08:49:33,391 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 08:49:33,391 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 08:49:33,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 08:49:33,391 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9466f27e00e9305501eee0377198b5d988616fcd0740d7b6b046dc1579fad0d0 [2022-07-21 08:49:33,721 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 08:49:33,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 08:49:33,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 08:49:33,747 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 08:49:33,748 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 08:49:33,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-07-21 08:49:33,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/533e6b2d6/6d33ab5397974e3380a5d1aee10de03e/FLAGb326f84e8 [2022-07-21 08:49:34,364 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 08:49:34,366 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_18-first-reads_unknown_2_neg.i [2022-07-21 08:49:34,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/533e6b2d6/6d33ab5397974e3380a5d1aee10de03e/FLAGb326f84e8 [2022-07-21 08:49:34,672 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/533e6b2d6/6d33ab5397974e3380a5d1aee10de03e [2022-07-21 08:49:34,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 08:49:34,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 08:49:34,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 08:49:34,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 08:49:34,682 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 08:49:34,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:49:34" (1/1) ... [2022-07-21 08:49:34,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6e81b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:34, skipping insertion in model container [2022-07-21 08:49:34,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:49:34" (1/1) ... [2022-07-21 08:49:34,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 08:49:34,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 08:49:34,860 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_unknown_2_neg.i[1097,1110] [2022-07-21 08:49:35,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:49:35,040 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 08:49:35,054 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_unknown_2_neg.i[1097,1110] [2022-07-21 08:49:35,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 08:49:35,143 INFO L208 MainTranslator]: Completed translation [2022-07-21 08:49:35,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:35 WrapperNode [2022-07-21 08:49:35,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 08:49:35,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 08:49:35,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 08:49:35,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 08:49:35,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:35" (1/1) ... [2022-07-21 08:49:35,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:35" (1/1) ... [2022-07-21 08:49:35,206 INFO L137 Inliner]: procedures = 163, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-07-21 08:49:35,207 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 08:49:35,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 08:49:35,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 08:49:35,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 08:49:35,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:35" (1/1) ... [2022-07-21 08:49:35,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:35" (1/1) ... [2022-07-21 08:49:35,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:35" (1/1) ... [2022-07-21 08:49:35,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:35" (1/1) ... [2022-07-21 08:49:35,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:35" (1/1) ... [2022-07-21 08:49:35,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:35" (1/1) ... [2022-07-21 08:49:35,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:35" (1/1) ... [2022-07-21 08:49:35,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 08:49:35,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 08:49:35,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 08:49:35,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 08:49:35,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:35" (1/1) ... [2022-07-21 08:49:35,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 08:49:35,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 08:49:35,281 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) [2022-07-21 08:49:35,303 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 [2022-07-21 08:49:35,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 08:49:35,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 08:49:35,314 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-07-21 08:49:35,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 08:49:35,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 08:49:35,315 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-07-21 08:49:35,315 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-07-21 08:49:35,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 08:49:35,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 08:49:35,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 08:49:35,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 08:49:35,317 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-07-21 08:49:35,410 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 08:49:35,411 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 08:49:35,609 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 08:49:35,634 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 08:49:35,634 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 08:49:35,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:49:35 BoogieIcfgContainer [2022-07-21 08:49:35,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 08:49:35,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 08:49:35,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 08:49:35,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 08:49:35,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:49:34" (1/3) ... [2022-07-21 08:49:35,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36177986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:49:35, skipping insertion in model container [2022-07-21 08:49:35,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:49:35" (2/3) ... [2022-07-21 08:49:35,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36177986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:49:35, skipping insertion in model container [2022-07-21 08:49:35,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:49:35" (3/3) ... [2022-07-21 08:49:35,644 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_18-first-reads_unknown_2_neg.i [2022-07-21 08:49:35,651 WARN L143 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-07-21 08:49:35,659 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 08:49:35,660 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 08:49:35,660 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-07-21 08:49:35,734 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-07-21 08:49:35,780 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 64 transitions, 136 flow [2022-07-21 08:49:35,825 INFO L129 PetriNetUnfolder]: 2/63 cut-off events. [2022-07-21 08:49:35,826 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-21 08:49:35,828 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 63 events. 2/63 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2022-07-21 08:49:35,828 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 64 transitions, 136 flow [2022-07-21 08:49:35,834 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 50 places, 47 transitions, 97 flow [2022-07-21 08:49:35,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 08:49:35,862 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@1a3cbb3d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3f88e7c5 [2022-07-21 08:49:35,862 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-07-21 08:49:35,906 INFO L129 PetriNetUnfolder]: 1/46 cut-off events. [2022-07-21 08:49:35,907 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-07-21 08:49:35,907 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:49:35,908 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] [2022-07-21 08:49:35,909 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 08:49:35,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:49:35,914 INFO L85 PathProgramCache]: Analyzing trace with hash -392670942, now seen corresponding path program 1 times [2022-07-21 08:49:35,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:49:35,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335324939] [2022-07-21 08:49:35,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:49:35,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:49:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 08:49:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 08:49:36,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 08:49:36,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335324939] [2022-07-21 08:49:36,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335324939] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 08:49:36,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 08:49:36,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 08:49:36,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452676595] [2022-07-21 08:49:36,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 08:49:36,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 08:49:36,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 08:49:36,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 08:49:36,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 08:49:36,234 INFO L443 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 64 [2022-07-21 08:49:36,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 47 transitions, 97 flow. Second operand has 6 states, 6 states have (on average 49.5) internal successors, (297), 6 states have internal predecessors, (297), 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) [2022-07-21 08:49:36,242 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-07-21 08:49:36,242 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 64 [2022-07-21 08:49:36,243 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-07-21 08:49:36,346 INFO L129 PetriNetUnfolder]: 0/52 cut-off events. [2022-07-21 08:49:36,347 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-07-21 08:49:36,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 52 events. 0/52 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 1/52 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2022-07-21 08:49:36,348 INFO L132 encePairwiseOnDemand]: 58/64 looper letters, 8 selfloop transitions, 2 changer transitions 5/51 dead transitions. [2022-07-21 08:49:36,348 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 51 transitions, 135 flow [2022-07-21 08:49:36,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 08:49:36,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-07-21 08:49:36,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 304 transitions. [2022-07-21 08:49:36,368 INFO L488 CegarLoopForPetriNet]: DFA transition density 0.7916666666666666 [2022-07-21 08:49:36,369 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 304 transitions. [2022-07-21 08:49:36,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 304 transitions. [2022-07-21 08:49:36,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-21 08:49:36,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 304 transitions. [2022-07-21 08:49:36,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 50.666666666666664) internal successors, (304), 6 states have internal predecessors, (304), 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) [2022-07-21 08:49:36,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 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) [2022-07-21 08:49:36,384 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 64.0) internal successors, (448), 7 states have internal predecessors, (448), 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) [2022-07-21 08:49:36,386 INFO L186 Difference]: Start difference. First operand has 50 places, 47 transitions, 97 flow. Second operand 6 states and 304 transitions. [2022-07-21 08:49:36,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 51 transitions, 135 flow [2022-07-21 08:49:36,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 51 transitions, 134 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-07-21 08:49:36,390 INFO L242 Difference]: Finished difference. Result has 58 places, 46 transitions, 108 flow [2022-07-21 08:49:36,392 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=108, PETRI_PLACES=58, PETRI_TRANSITIONS=46} [2022-07-21 08:49:36,395 INFO L279 CegarLoopForPetriNet]: 50 programPoint places, 8 predicate places. [2022-07-21 08:49:36,396 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 46 transitions, 108 flow [2022-07-21 08:49:36,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.5) internal successors, (297), 6 states have internal predecessors, (297), 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) [2022-07-21 08:49:36,396 INFO L192 CegarLoopForPetriNet]: Found error trace [2022-07-21 08:49:36,397 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] [2022-07-21 08:49:36,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 08:49:36,397 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 08:49:36,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 08:49:36,398 INFO L85 PathProgramCache]: Analyzing trace with hash -140340200, now seen corresponding path program 1 times [2022-07-21 08:49:36,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 08:49:36,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711871930] [2022-07-21 08:49:36,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 08:49:36,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 08:49:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 08:49:36,423 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 08:49:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 08:49:36,460 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 08:49:36,461 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 08:49:36,462 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-07-21 08:49:36,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-07-21 08:49:36,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-07-21 08:49:36,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 08:49:36,465 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 08:49:36,471 INFO L226 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-07-21 08:49:36,471 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 08:49:36,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:49:36 BasicIcfg [2022-07-21 08:49:36,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 08:49:36,504 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 08:49:36,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 08:49:36,505 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 08:49:36,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:49:35" (3/4) ... [2022-07-21 08:49:36,506 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 08:49:36,555 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 08:49:36,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 08:49:36,559 INFO L158 Benchmark]: Toolchain (without parser) took 1883.15ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 28.7MB in the beginning and 28.6MB in the end (delta: 90.0kB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2022-07-21 08:49:36,559 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 52.4MB. Free memory is still 33.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 08:49:36,560 INFO L158 Benchmark]: CACSL2BoogieTranslator took 465.84ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 28.5MB in the beginning and 42.4MB in the end (delta: -13.9MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-07-21 08:49:36,560 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.18ms. Allocated memory is still 67.1MB. Free memory was 42.4MB in the beginning and 40.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 08:49:36,561 INFO L158 Benchmark]: Boogie Preprocessor took 43.38ms. Allocated memory is still 67.1MB. Free memory was 40.4MB in the beginning and 39.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 08:49:36,562 INFO L158 Benchmark]: RCFGBuilder took 384.93ms. Allocated memory is still 67.1MB. Free memory was 39.1MB in the beginning and 41.9MB in the end (delta: -2.8MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2022-07-21 08:49:36,562 INFO L158 Benchmark]: TraceAbstraction took 865.77ms. Allocated memory is still 67.1MB. Free memory was 41.4MB in the beginning and 32.1MB in the end (delta: 9.3MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2022-07-21 08:49:36,565 INFO L158 Benchmark]: Witness Printer took 53.95ms. Allocated memory is still 67.1MB. Free memory was 32.1MB in the beginning and 28.6MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 08:49:36,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 52.4MB. Free memory is still 33.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 465.84ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 28.5MB in the beginning and 42.4MB in the end (delta: -13.9MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.18ms. Allocated memory is still 67.1MB. Free memory was 42.4MB in the beginning and 40.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.38ms. Allocated memory is still 67.1MB. Free memory was 40.4MB in the beginning and 39.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 384.93ms. Allocated memory is still 67.1MB. Free memory was 39.1MB in the beginning and 41.9MB in the end (delta: -2.8MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * TraceAbstraction took 865.77ms. Allocated memory is still 67.1MB. Free memory was 41.4MB in the beginning and 32.1MB in the end (delta: 9.3MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * Witness Printer took 53.95ms. Allocated memory is still 67.1MB. Free memory was 32.1MB in the beginning and 28.6MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 int glob1 = 0; VAL [glob1=0] [L683] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [glob1=0, mutex1={3:0}] [L697] 0 pthread_t id; VAL [glob1=0, id={5:0}, mutex1={3:0}] [L698] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [glob1=0, id={5:0}, mutex1={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L685] 1 int t = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=42, arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L687] COND TRUE 1 t == 42 VAL [arg={0:0}, arg={0:0}, glob1=0, mutex1={3:0}, t=42] [L688] 1 glob1 = 1 VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=42] [L690] 1 t = glob1 VAL [arg={0:0}, arg={0:0}, glob1=1, mutex1={3:0}, t=1] [L691] CALL 1 __VERIFIER_assert(!(t == 1)) [L19] COND TRUE 1 !(cond) VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] [L19] 1 reach_error() VAL [\old(cond)=0, cond=0, glob1=1, mutex1={3:0}] - UnprovableResult [Line: 698]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - 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, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 7 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=1, InterpolantAutomatonStates: 6, 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, 0.1s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 incorrect! [2022-07-21 08:49:36,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE