./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:41:36,228 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:41:36,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:41:36,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:41:36,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:41:36,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:41:36,286 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:41:36,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:41:36,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:41:36,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:41:36,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:41:36,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:41:36,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:41:36,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:41:36,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:41:36,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:41:36,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:41:36,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:41:36,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:41:36,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:41:36,311 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:41:36,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:41:36,312 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:41:36,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:41:36,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:41:36,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:41:36,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:41:36,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:41:36,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:41:36,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:41:36,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:41:36,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:41:36,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:41:36,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:41:36,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:41:36,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:41:36,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:41:36,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:41:36,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:41:36,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:41:36,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:41:36,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:41:36,330 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:41:36,363 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:41:36,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:41:36,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:41:36,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:41:36,365 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:41:36,365 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:41:36,365 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:41:36,365 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:41:36,366 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:41:36,366 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:41:36,366 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:41:36,367 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:41:36,367 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:41:36,367 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:41:36,367 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:41:36,367 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:41:36,367 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:41:36,368 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:41:36,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:41:36,369 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:41:36,369 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:41:36,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:41:36,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:41:36,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:41:36,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:41:36,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:41:36,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:41:36,370 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:41:36,370 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:41:36,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:41:36,373 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:41:36,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:41:36,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:41:36,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:41:36,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:41:36,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:41:36,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:41:36,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:41:36,375 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:41:36,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:41:36,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:41:36,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:41:36,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:41:36,376 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/UTaipan-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1ef95a35179200d99984d58302d18a6584e38a2849111bfe4f263e2c30aaebc [2022-04-18 18:41:36,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:41:36,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:41:36,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:41:36,596 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:41:36,597 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:41:36,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2022-04-18 18:41:36,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7f2cc7a4f/2ad70cc6005d4a788379f24efccd4d7a/FLAG0c7daa576 [2022-04-18 18:41:37,053 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:41:37,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i [2022-04-18 18:41:37,068 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7f2cc7a4f/2ad70cc6005d4a788379f24efccd4d7a/FLAG0c7daa576 [2022-04-18 18:41:37,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7f2cc7a4f/2ad70cc6005d4a788379f24efccd4d7a [2022-04-18 18:41:37,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:41:37,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:41:37,385 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:41:37,385 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:41:37,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:41:37,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:41:37" (1/1) ... [2022-04-18 18:41:37,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226bfc56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:37, skipping insertion in model container [2022-04-18 18:41:37,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:41:37" (1/1) ... [2022-04-18 18:41:37,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:41:37,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:41:37,540 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i[1103,1116] [2022-04-18 18:41:37,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:41:37,656 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:41:37,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_19-publish-precision_unknown_1_pos.i[1103,1116] [2022-04-18 18:41:37,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:41:37,718 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:41:37,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:37 WrapperNode [2022-04-18 18:41:37,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:41:37,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:41:37,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:41:37,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:41:37,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:37" (1/1) ... [2022-04-18 18:41:37,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:37" (1/1) ... [2022-04-18 18:41:37,768 INFO L137 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2022-04-18 18:41:37,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:41:37,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:41:37,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:41:37,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:41:37,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:37" (1/1) ... [2022-04-18 18:41:37,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:37" (1/1) ... [2022-04-18 18:41:37,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:37" (1/1) ... [2022-04-18 18:41:37,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:37" (1/1) ... [2022-04-18 18:41:37,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:37" (1/1) ... [2022-04-18 18:41:37,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:37" (1/1) ... [2022-04-18 18:41:37,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:37" (1/1) ... [2022-04-18 18:41:37,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:41:37,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:41:37,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:41:37,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:41:37,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:37" (1/1) ... [2022-04-18 18:41:37,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:41:37,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:41:37,833 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 18:41:37,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 18:41:37,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 18:41:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:41:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:41:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:41:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:41:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-04-18 18:41:37,888 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-04-18 18:41:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:41:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:41:37,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:41:37,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:41:37,894 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 18:41:38,014 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:41:38,015 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:41:38,178 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:41:38,185 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:41:38,185 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-04-18 18:41:38,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:41:38 BoogieIcfgContainer [2022-04-18 18:41:38,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:41:38,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:41:38,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:41:38,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:41:38,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:41:37" (1/3) ... [2022-04-18 18:41:38,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26176048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:41:38, skipping insertion in model container [2022-04-18 18:41:38,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:41:37" (2/3) ... [2022-04-18 18:41:38,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26176048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:41:38, skipping insertion in model container [2022-04-18 18:41:38,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:41:38" (3/3) ... [2022-04-18 18:41:38,194 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_19-publish-precision_unknown_1_pos.i [2022-04-18 18:41:38,197 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:41:38,198 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:41:38,198 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-04-18 18:41:38,198 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:41:38,246 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 18:41:38,291 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:41:38,298 INFO L340 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=FINITE_AUTOMATA, 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 [2022-04-18 18:41:38,298 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-04-18 18:41:38,323 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:41:38,331 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 89 transitions, 186 flow [2022-04-18 18:41:38,335 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 89 transitions, 186 flow [2022-04-18 18:41:38,336 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 89 transitions, 186 flow [2022-04-18 18:41:38,370 INFO L129 PetriNetUnfolder]: 1/88 cut-off events. [2022-04-18 18:41:38,371 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 18:41:38,373 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 88 events. 1/88 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2022-04-18 18:41:38,376 INFO L116 LiptonReduction]: Number of co-enabled transitions 1152 [2022-04-18 18:41:40,451 INFO L131 LiptonReduction]: Checked pairs total: 3799 [2022-04-18 18:41:40,452 INFO L133 LiptonReduction]: Total number of compositions: 72 [2022-04-18 18:41:40,457 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 26 transitions, 60 flow [2022-04-18 18:41:40,471 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 116 states, 108 states have (on average 2.0462962962962963) internal successors, (221), 115 states have internal predecessors, (221), 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) [2022-04-18 18:41:40,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 108 states have (on average 2.0462962962962963) internal successors, (221), 115 states have internal predecessors, (221), 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) [2022-04-18 18:41:40,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-04-18 18:41:40,477 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:41:40,477 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-04-18 18:41:40,478 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-04-18 18:41:40,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:41:40,481 INFO L85 PathProgramCache]: Analyzing trace with hash 9473826, now seen corresponding path program 1 times [2022-04-18 18:41:40,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:41:40,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605348171] [2022-04-18 18:41:40,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:41:40,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:41:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:41:40,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:41:40,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:41:40,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605348171] [2022-04-18 18:41:40,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605348171] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:41:40,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:41:40,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:41:40,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316333451] [2022-04-18 18:41:40,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:41:40,598 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 18:41:40,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:41:40,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 18:41:40,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 18:41:40,614 INFO L87 Difference]: Start difference. First operand has 116 states, 108 states have (on average 2.0462962962962963) internal successors, (221), 115 states have internal predecessors, (221), 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) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-04-18 18:41:40,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:41:40,643 INFO L93 Difference]: Finished difference Result 116 states and 208 transitions. [2022-04-18 18:41:40,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 18:41:40,645 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-04-18 18:41:40,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:41:40,650 INFO L225 Difference]: With dead ends: 116 [2022-04-18 18:41:40,651 INFO L226 Difference]: Without dead ends: 116 [2022-04-18 18:41:40,652 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 18:41:40,654 INFO L913 BasicCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:41:40,655 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:41:40,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-04-18 18:41:40,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-04-18 18:41:40,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 108 states have (on average 1.9259259259259258) internal successors, (208), 115 states have internal predecessors, (208), 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) [2022-04-18 18:41:40,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 208 transitions. [2022-04-18 18:41:40,681 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 208 transitions. Word has length 4 [2022-04-18 18:41:40,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:41:40,681 INFO L478 AbstractCegarLoop]: Abstraction has 116 states and 208 transitions. [2022-04-18 18:41:40,682 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-04-18 18:41:40,682 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 208 transitions. [2022-04-18 18:41:40,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-04-18 18:41:40,682 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:41:40,682 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-04-18 18:41:40,683 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 18:41:40,683 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-04-18 18:41:40,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:41:40,683 INFO L85 PathProgramCache]: Analyzing trace with hash 293651548, now seen corresponding path program 1 times [2022-04-18 18:41:40,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:41:40,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027594766] [2022-04-18 18:41:40,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:41:40,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:41:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:41:40,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:41:40,722 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:41:40,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027594766] [2022-04-18 18:41:40,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027594766] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:41:40,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:41:40,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:41:40,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702417397] [2022-04-18 18:41:40,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:41:40,725 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:41:40,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:41:40,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:41:40,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:41:40,727 INFO L87 Difference]: Start difference. First operand 116 states and 208 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-04-18 18:41:40,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:41:40,777 INFO L93 Difference]: Finished difference Result 170 states and 300 transitions. [2022-04-18 18:41:40,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:41:40,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2022-04-18 18:41:40,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:41:40,779 INFO L225 Difference]: With dead ends: 170 [2022-04-18 18:41:40,780 INFO L226 Difference]: Without dead ends: 170 [2022-04-18 18:41:40,781 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:41:40,782 INFO L913 BasicCegarLoop]: 6 mSDtfsCounter, 15 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:41:40,783 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 6 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:41:40,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-04-18 18:41:40,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 123. [2022-04-18 18:41:40,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 115 states have (on average 1.9217391304347826) internal successors, (221), 122 states have internal predecessors, (221), 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) [2022-04-18 18:41:40,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 221 transitions. [2022-04-18 18:41:40,792 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 221 transitions. Word has length 5 [2022-04-18 18:41:40,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:41:40,793 INFO L478 AbstractCegarLoop]: Abstraction has 123 states and 221 transitions. [2022-04-18 18:41:40,793 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-04-18 18:41:40,793 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 221 transitions. [2022-04-18 18:41:40,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 18:41:40,794 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:41:40,794 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-04-18 18:41:40,794 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 18:41:40,794 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-04-18 18:41:40,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:41:40,795 INFO L85 PathProgramCache]: Analyzing trace with hash 513431080, now seen corresponding path program 1 times [2022-04-18 18:41:40,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:41:40,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085088820] [2022-04-18 18:41:40,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:41:40,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:41:40,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:41:40,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:41:40,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:41:40,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085088820] [2022-04-18 18:41:40,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085088820] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:41:40,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:41:40,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:41:40,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54979173] [2022-04-18 18:41:40,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:41:40,850 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:41:40,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:41:40,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:41:40,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:41:40,851 INFO L87 Difference]: Start difference. First operand 123 states and 221 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-04-18 18:41:40,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:41:40,885 INFO L93 Difference]: Finished difference Result 130 states and 233 transitions. [2022-04-18 18:41:40,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:41:40,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-04-18 18:41:40,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:41:40,889 INFO L225 Difference]: With dead ends: 130 [2022-04-18 18:41:40,890 INFO L226 Difference]: Without dead ends: 130 [2022-04-18 18:41:40,891 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:41:40,893 INFO L913 BasicCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:41:40,894 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 5 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:41:40,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-04-18 18:41:40,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 124. [2022-04-18 18:41:40,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 117 states have (on average 1.8974358974358974) internal successors, (222), 123 states have internal predecessors, (222), 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) [2022-04-18 18:41:40,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 222 transitions. [2022-04-18 18:41:40,916 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 222 transitions. Word has length 6 [2022-04-18 18:41:40,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:41:40,917 INFO L478 AbstractCegarLoop]: Abstraction has 124 states and 222 transitions. [2022-04-18 18:41:40,917 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-04-18 18:41:40,917 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 222 transitions. [2022-04-18 18:41:40,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-04-18 18:41:40,918 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:41:40,918 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:41:40,918 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 18:41:40,918 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-04-18 18:41:40,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:41:40,919 INFO L85 PathProgramCache]: Analyzing trace with hash -574659452, now seen corresponding path program 1 times [2022-04-18 18:41:40,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:41:40,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861439709] [2022-04-18 18:41:40,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:41:40,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:41:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:41:40,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:41:40,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:41:40,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861439709] [2022-04-18 18:41:40,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861439709] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:41:40,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:41:40,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 18:41:40,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309876531] [2022-04-18 18:41:40,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:41:40,968 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 18:41:40,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:41:40,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 18:41:40,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-18 18:41:40,969 INFO L87 Difference]: Start difference. First operand 124 states and 222 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-04-18 18:41:40,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:41:40,993 INFO L93 Difference]: Finished difference Result 67 states and 97 transitions. [2022-04-18 18:41:40,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-18 18:41:40,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) Word has length 8 [2022-04-18 18:41:40,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:41:40,994 INFO L225 Difference]: With dead ends: 67 [2022-04-18 18:41:40,994 INFO L226 Difference]: Without dead ends: 67 [2022-04-18 18:41:40,994 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-18 18:41:40,995 INFO L913 BasicCegarLoop]: 4 mSDtfsCounter, 35 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:41:40,995 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 4 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:41:40,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-04-18 18:41:40,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-04-18 18:41:40,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 63 states have (on average 1.5396825396825398) internal successors, (97), 66 states have internal predecessors, (97), 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) [2022-04-18 18:41:40,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 97 transitions. [2022-04-18 18:41:40,998 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 97 transitions. Word has length 8 [2022-04-18 18:41:40,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:41:40,998 INFO L478 AbstractCegarLoop]: Abstraction has 67 states and 97 transitions. [2022-04-18 18:41:40,999 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-04-18 18:41:40,999 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 97 transitions. [2022-04-18 18:41:40,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-04-18 18:41:40,999 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:41:40,999 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:41:40,999 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 18:41:41,000 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-04-18 18:41:41,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:41:41,000 INFO L85 PathProgramCache]: Analyzing trace with hash -671133308, now seen corresponding path program 1 times [2022-04-18 18:41:41,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:41:41,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029604949] [2022-04-18 18:41:41,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:41:41,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:41:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:41:41,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:41:41,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:41:41,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029604949] [2022-04-18 18:41:41,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029604949] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:41:41,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:41:41,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:41:41,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771141497] [2022-04-18 18:41:41,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:41:41,051 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:41:41,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:41:41,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:41:41,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:41:41,052 INFO L87 Difference]: Start difference. First operand 67 states and 97 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-04-18 18:41:41,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:41:41,076 INFO L93 Difference]: Finished difference Result 55 states and 74 transitions. [2022-04-18 18:41:41,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:41:41,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2022-04-18 18:41:41,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:41:41,078 INFO L225 Difference]: With dead ends: 55 [2022-04-18 18:41:41,078 INFO L226 Difference]: Without dead ends: 41 [2022-04-18 18:41:41,078 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:41:41,078 INFO L913 BasicCegarLoop]: 7 mSDtfsCounter, 11 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:41:41,079 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 11 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:41:41,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-04-18 18:41:41,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-04-18 18:41:41,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 40 states have internal predecessors, (54), 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) [2022-04-18 18:41:41,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2022-04-18 18:41:41,085 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 8 [2022-04-18 18:41:41,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:41:41,086 INFO L478 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions. [2022-04-18 18:41:41,086 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-04-18 18:41:41,086 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2022-04-18 18:41:41,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-04-18 18:41:41,086 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:41:41,086 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:41:41,087 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 18:41:41,087 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-04-18 18:41:41,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:41:41,087 INFO L85 PathProgramCache]: Analyzing trace with hash 2699334, now seen corresponding path program 1 times [2022-04-18 18:41:41,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:41:41,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195024840] [2022-04-18 18:41:41,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:41:41,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:41:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:41:41,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:41:41,125 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:41:41,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195024840] [2022-04-18 18:41:41,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195024840] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:41:41,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:41:41,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:41:41,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812141069] [2022-04-18 18:41:41,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:41:41,127 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:41:41,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:41:41,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:41:41,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:41:41,128 INFO L87 Difference]: Start difference. First operand 41 states and 54 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-04-18 18:41:41,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:41:41,147 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2022-04-18 18:41:41,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:41:41,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2022-04-18 18:41:41,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:41:41,148 INFO L225 Difference]: With dead ends: 38 [2022-04-18 18:41:41,148 INFO L226 Difference]: Without dead ends: 0 [2022-04-18 18:41:41,149 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:41:41,155 INFO L913 BasicCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:41:41,155 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 2 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:41:41,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-18 18:41:41,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-18 18:41:41,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-04-18 18:41:41,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-18 18:41:41,156 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2022-04-18 18:41:41,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:41:41,156 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-18 18:41:41,156 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-04-18 18:41:41,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-18 18:41:41,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-18 18:41:41,158 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-04-18 18:41:41,159 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-04-18 18:41:41,159 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-04-18 18:41:41,159 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2022-04-18 18:41:41,159 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-04-18 18:41:41,160 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-04-18 18:41:41,160 INFO L788 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-04-18 18:41:41,160 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 18:41:41,161 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-04-18 18:41:41,164 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 18:41:41,164 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 18:41:41,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 06:41:41 BasicIcfg [2022-04-18 18:41:41,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 18:41:41,167 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 18:41:41,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 18:41:41,167 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 18:41:41,167 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:41:38" (3/4) ... [2022-04-18 18:41:41,169 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 18:41:41,173 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-04-18 18:41:41,176 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-04-18 18:41:41,176 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-04-18 18:41:41,176 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 18:41:41,176 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 18:41:41,199 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2022-04-18 18:41:41,199 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 18:41:41,199 INFO L158 Benchmark]: Toolchain (without parser) took 3815.30ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 76.3MB in the beginning and 43.3MB in the end (delta: 33.0MB). Peak memory consumption was 60.6MB. Max. memory is 16.1GB. [2022-04-18 18:41:41,200 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 18:41:41,200 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.59ms. Allocated memory is still 102.8MB. Free memory was 76.0MB in the beginning and 57.5MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-04-18 18:41:41,200 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.36ms. Allocated memory is still 102.8MB. Free memory was 57.5MB in the beginning and 55.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 18:41:41,200 INFO L158 Benchmark]: Boogie Preprocessor took 38.82ms. Allocated memory is still 102.8MB. Free memory was 55.4MB in the beginning and 54.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 18:41:41,201 INFO L158 Benchmark]: RCFGBuilder took 379.18ms. Allocated memory is still 102.8MB. Free memory was 54.0MB in the beginning and 71.5MB in the end (delta: -17.5MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-04-18 18:41:41,201 INFO L158 Benchmark]: TraceAbstraction took 2977.11ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 70.7MB in the beginning and 46.5MB in the end (delta: 24.2MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2022-04-18 18:41:41,202 INFO L158 Benchmark]: Witness Printer took 32.34ms. Allocated memory is still 127.9MB. Free memory was 46.5MB in the beginning and 43.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 18:41:41,203 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 83.9MB. Free memory was 55.8MB in the beginning and 55.7MB in the end (delta: 40.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.59ms. Allocated memory is still 102.8MB. Free memory was 76.0MB in the beginning and 57.5MB in the end (delta: 18.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.36ms. Allocated memory is still 102.8MB. Free memory was 57.5MB in the beginning and 55.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.82ms. Allocated memory is still 102.8MB. Free memory was 55.4MB in the beginning and 54.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 379.18ms. Allocated memory is still 102.8MB. Free memory was 54.0MB in the beginning and 71.5MB in the end (delta: -17.5MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2977.11ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 70.7MB in the beginning and 46.5MB in the end (delta: 24.2MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * Witness Printer took 32.34ms. Allocated memory is still 127.9MB. Free memory was 46.5MB in the beginning and 43.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 92 PlacesBefore, 29 PlacesAfterwards, 89 TransitionsBefore, 26 TransitionsAfterwards, 1152 CoEnabledTransitionPairs, 7 FixpointIterations, 36 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 72 TotalNumberOfCompositions, 3799 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2122, positive: 1880, positive conditional: 0, positive unconditional: 1880, negative: 242, negative conditional: 0, negative unconditional: 242, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 908, positive: 850, positive conditional: 0, positive unconditional: 850, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 908, positive: 807, positive conditional: 0, positive unconditional: 807, negative: 101, negative conditional: 0, negative unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 101, positive: 43, positive conditional: 0, positive unconditional: 43, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 144, positive: 51, positive conditional: 0, positive unconditional: 51, negative: 93, negative conditional: 0, negative unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2122, positive: 1030, positive conditional: 0, positive unconditional: 1030, negative: 184, negative conditional: 0, negative unconditional: 184, unknown: 908, unknown conditional: 0, unknown unconditional: 908] , Statistics on independence cache: Total cache size (in pairs): 158, Positive cache size: 131, Positive conditional cache size: 0, Positive unconditional cache size: 131, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 701]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 687]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 690]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 115 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 204 IncrementalHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 30 mSDtfsCounter, 204 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=3, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 53 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 89 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 18:41:41,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-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