./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/03-practical_07-nonterm.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/03-practical_07-nonterm.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --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 2562086a02be6998e1a5ce9ce305a1aab13bba69cf8f1d9765d0b8ae4c7e77e3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:01:46,633 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:01:46,719 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-25 00:01:46,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:01:46,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:01:46,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:01:46,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:01:46,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:01:46,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:01:46,783 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:01:46,783 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:01:46,784 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:01:46,784 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:01:46,786 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:01:46,786 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:01:46,786 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:01:46,787 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:01:46,787 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:01:46,789 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:01:46,789 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:01:46,790 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:01:46,790 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:01:46,791 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:01:46,792 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:01:46,792 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:01:46,793 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:01:46,793 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:01:46,793 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:01:46,794 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:01:46,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:01:46,795 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:01:46,796 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-25 00:01:46,796 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:01:46,796 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:01:46,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:01:46,796 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:01:46,797 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:01:46,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:01:46,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:46,798 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:01:46,798 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:01:46,798 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:01:46,798 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:01:46,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:01:46,799 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:01:46,799 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:01:46,800 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:01:46,800 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:01:46,800 INFO L153 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2562086a02be6998e1a5ce9ce305a1aab13bba69cf8f1d9765d0b8ae4c7e77e3 [2023-11-25 00:01:47,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:01:47,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:01:47,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:01:47,139 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:01:47,140 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:01:47,141 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/goblint-regression/03-practical_07-nonterm.i [2023-11-25 00:01:50,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:01:50,580 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:01:50,581 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/sv-benchmarks/c/goblint-regression/03-practical_07-nonterm.i [2023-11-25 00:01:50,607 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/bin/utaipan-verify-SwPr7d2a91/data/01c2eb116/49a525869f964eaa96b3f4115fdff9a4/FLAGa7996f0d4 [2023-11-25 00:01:50,626 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/bin/utaipan-verify-SwPr7d2a91/data/01c2eb116/49a525869f964eaa96b3f4115fdff9a4 [2023-11-25 00:01:50,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:01:50,633 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:01:50,637 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:50,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:01:50,643 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:01:50,644 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:50" (1/1) ... [2023-11-25 00:01:50,645 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c3c0785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:50, skipping insertion in model container [2023-11-25 00:01:50,645 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:01:50" (1/1) ... [2023-11-25 00:01:50,717 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:01:51,281 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:51,295 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:01:51,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:01:51,426 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:01:51,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:51 WrapperNode [2023-11-25 00:01:51,427 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:01:51,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:51,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:01:51,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:01:51,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:51" (1/1) ... [2023-11-25 00:01:51,469 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:51" (1/1) ... [2023-11-25 00:01:51,509 INFO L138 Inliner]: procedures = 263, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-11-25 00:01:51,510 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:01:51,510 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:01:51,511 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:01:51,511 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:01:51,520 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:51" (1/1) ... [2023-11-25 00:01:51,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:51" (1/1) ... [2023-11-25 00:01:51,529 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:51" (1/1) ... [2023-11-25 00:01:51,529 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:51" (1/1) ... [2023-11-25 00:01:51,536 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:51" (1/1) ... [2023-11-25 00:01:51,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:51" (1/1) ... [2023-11-25 00:01:51,550 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:51" (1/1) ... [2023-11-25 00:01:51,552 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:51" (1/1) ... [2023-11-25 00:01:51,556 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:01:51,567 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:01:51,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:01:51,568 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:01:51,569 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:51" (1/1) ... [2023-11-25 00:01:51,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:01:51,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:01:51,607 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:01:51,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:01:51,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:01:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:01:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-25 00:01:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:01:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:01:51,657 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-25 00:01:51,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:01:51,659 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-25 00:01:51,660 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-25 00:01:51,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:01:51,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:01:51,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:01:51,662 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-25 00:01:51,913 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:01:51,916 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:01:52,131 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:01:52,166 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:01:52,166 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-25 00:01:52,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:52 BoogieIcfgContainer [2023-11-25 00:01:52,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:01:52,171 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:01:52,171 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:01:52,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:01:52,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:01:50" (1/3) ... [2023-11-25 00:01:52,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e2fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:52, skipping insertion in model container [2023-11-25 00:01:52,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:01:51" (2/3) ... [2023-11-25 00:01:52,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e2fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:01:52, skipping insertion in model container [2023-11-25 00:01:52,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:52" (3/3) ... [2023-11-25 00:01:52,178 INFO L112 eAbstractionObserver]: Analyzing ICFG 03-practical_07-nonterm.i [2023-11-25 00:01:52,188 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-25 00:01:52,199 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:01:52,199 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-25 00:01:52,200 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-25 00:01:52,265 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-25 00:01:52,300 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 81 places, 79 transitions, 165 flow [2023-11-25 00:01:52,362 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 466 states, 454 states have (on average 1.997797356828194) internal successors, (907), 465 states have internal predecessors, (907), 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) [2023-11-25 00:01:52,380 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:01:52,388 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@cbab513, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:01:52,388 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-25 00:01:52,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 466 states, 454 states have (on average 1.997797356828194) internal successors, (907), 465 states have internal predecessors, (907), 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) [2023-11-25 00:01:52,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-25 00:01:52,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:52,401 INFO L195 NwaCegarLoop]: 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] [2023-11-25 00:01:52,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-25 00:01:52,408 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:52,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1944842798, now seen corresponding path program 1 times [2023-11-25 00:01:52,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:01:52,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627533317] [2023-11-25 00:01:52,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:52,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:01:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:52,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:52,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:01:52,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627533317] [2023-11-25 00:01:52,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627533317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:52,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:52,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:01:52,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673081661] [2023-11-25 00:01:52,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:52,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:01:52,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:01:52,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:01:52,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:52,846 INFO L87 Difference]: Start difference. First operand has 466 states, 454 states have (on average 1.997797356828194) internal successors, (907), 465 states have internal predecessors, (907), 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 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-11-25 00:01:52,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:52,991 INFO L93 Difference]: Finished difference Result 454 states and 864 transitions. [2023-11-25 00:01:52,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:01:52,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2023-11-25 00:01:52,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:53,018 INFO L225 Difference]: With dead ends: 454 [2023-11-25 00:01:53,018 INFO L226 Difference]: Without dead ends: 449 [2023-11-25 00:01:53,022 INFO L412 NwaCegarLoop]: 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 [2023-11-25 00:01:53,028 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 32 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:53,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 120 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:01:53,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-11-25 00:01:53,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 389. [2023-11-25 00:01:53,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 382 states have (on average 1.9267015706806283) internal successors, (736), 388 states have internal predecessors, (736), 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) [2023-11-25 00:01:53,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 736 transitions. [2023-11-25 00:01:53,112 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 736 transitions. Word has length 29 [2023-11-25 00:01:53,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:53,113 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 736 transitions. [2023-11-25 00:01:53,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-11-25 00:01:53,113 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 736 transitions. [2023-11-25 00:01:53,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-25 00:01:53,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:53,115 INFO L195 NwaCegarLoop]: 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] [2023-11-25 00:01:53,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:01:53,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-25 00:01:53,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:53,116 INFO L85 PathProgramCache]: Analyzing trace with hash 624670613, now seen corresponding path program 1 times [2023-11-25 00:01:53,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:01:53,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123363903] [2023-11-25 00:01:53,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:53,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:01:53,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:53,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:53,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:01:53,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123363903] [2023-11-25 00:01:53,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123363903] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:53,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:53,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:01:53,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753754856] [2023-11-25 00:01:53,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:53,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:01:53,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:01:53,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:01:53,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:53,273 INFO L87 Difference]: Start difference. First operand 389 states and 736 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-25 00:01:53,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:53,357 INFO L93 Difference]: Finished difference Result 414 states and 783 transitions. [2023-11-25 00:01:53,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:01:53,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2023-11-25 00:01:53,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:53,365 INFO L225 Difference]: With dead ends: 414 [2023-11-25 00:01:53,366 INFO L226 Difference]: Without dead ends: 405 [2023-11-25 00:01:53,366 INFO L412 NwaCegarLoop]: 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 [2023-11-25 00:01:53,368 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 21 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:53,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 114 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:01:53,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2023-11-25 00:01:53,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 389. [2023-11-25 00:01:53,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 383 states have (on average 1.91644908616188) internal successors, (734), 388 states have internal predecessors, (734), 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) [2023-11-25 00:01:53,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 734 transitions. [2023-11-25 00:01:53,416 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 734 transitions. Word has length 33 [2023-11-25 00:01:53,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:53,416 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 734 transitions. [2023-11-25 00:01:53,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 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) [2023-11-25 00:01:53,417 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 734 transitions. [2023-11-25 00:01:53,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-25 00:01:53,418 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:53,419 INFO L195 NwaCegarLoop]: 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] [2023-11-25 00:01:53,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:01:53,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-25 00:01:53,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:53,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1751491646, now seen corresponding path program 1 times [2023-11-25 00:01:53,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:01:53,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513879664] [2023-11-25 00:01:53,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:53,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:01:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:01:53,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:01:53,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:01:53,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513879664] [2023-11-25 00:01:53,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513879664] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:01:53,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:01:53,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:01:53,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300591882] [2023-11-25 00:01:53,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:01:53,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:01:53,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:01:53,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:01:53,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:01:53,510 INFO L87 Difference]: Start difference. First operand 389 states and 734 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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) [2023-11-25 00:01:53,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:01:53,554 INFO L93 Difference]: Finished difference Result 399 states and 754 transitions. [2023-11-25 00:01:53,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:01:53,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2023-11-25 00:01:53,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:01:53,558 INFO L225 Difference]: With dead ends: 399 [2023-11-25 00:01:53,559 INFO L226 Difference]: Without dead ends: 399 [2023-11-25 00:01:53,559 INFO L412 NwaCegarLoop]: 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 [2023-11-25 00:01:53,561 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 15 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-25 00:01:53,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 107 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-25 00:01:53,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2023-11-25 00:01:53,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 389. [2023-11-25 00:01:53,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 385 states have (on average 1.9064935064935065) internal successors, (734), 388 states have internal predecessors, (734), 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) [2023-11-25 00:01:53,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 734 transitions. [2023-11-25 00:01:53,587 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 734 transitions. Word has length 34 [2023-11-25 00:01:53,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:01:53,587 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 734 transitions. [2023-11-25 00:01:53,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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) [2023-11-25 00:01:53,588 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 734 transitions. [2023-11-25 00:01:53,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-25 00:01:53,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:01:53,590 INFO L195 NwaCegarLoop]: 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] [2023-11-25 00:01:53,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-25 00:01:53,591 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2023-11-25 00:01:53,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:01:53,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1670825533, now seen corresponding path program 1 times [2023-11-25 00:01:53,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:01:53,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644300914] [2023-11-25 00:01:53,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:01:53,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:01:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:01:53,653 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:01:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:01:53,729 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-25 00:01:53,734 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:01:53,735 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2023-11-25 00:01:53,737 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-11-25 00:01:53,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-11-25 00:01:53,738 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-11-25 00:01:53,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2023-11-25 00:01:53,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2023-11-25 00:01:53,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-11-25 00:01:53,740 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-11-25 00:01:53,741 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-11-25 00:01:53,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-25 00:01:53,750 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-25 00:01:53,757 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-25 00:01:53,757 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-25 00:01:53,795 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre34 could not be translated [2023-11-25 00:01:53,797 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet31 could not be translated [2023-11-25 00:01:53,798 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet31 could not be translated [2023-11-25 00:01:53,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 12:01:53 BasicIcfg [2023-11-25 00:01:53,806 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-25 00:01:53,807 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-25 00:01:53,807 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-25 00:01:53,807 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-25 00:01:53,808 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:01:52" (3/4) ... [2023-11-25 00:01:53,810 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-25 00:01:53,811 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-25 00:01:53,812 INFO L158 Benchmark]: Toolchain (without parser) took 3178.66ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 93.8MB in the beginning and 112.4MB in the end (delta: -18.6MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2023-11-25 00:01:53,813 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 134.2MB. Free memory is still 108.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:53,813 INFO L158 Benchmark]: CACSL2BoogieTranslator took 790.71ms. Allocated memory is still 134.2MB. Free memory was 93.5MB in the beginning and 65.7MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-25 00:01:53,814 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.18ms. Allocated memory is still 134.2MB. Free memory was 65.7MB in the beginning and 63.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:01:53,814 INFO L158 Benchmark]: Boogie Preprocessor took 56.28ms. Allocated memory is still 134.2MB. Free memory was 63.3MB in the beginning and 61.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-25 00:01:53,815 INFO L158 Benchmark]: RCFGBuilder took 600.61ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 61.8MB in the beginning and 127.7MB in the end (delta: -65.9MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2023-11-25 00:01:53,816 INFO L158 Benchmark]: TraceAbstraction took 1635.00ms. Allocated memory is still 163.6MB. Free memory was 127.4MB in the beginning and 113.4MB in the end (delta: 14.0MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2023-11-25 00:01:53,816 INFO L158 Benchmark]: Witness Printer took 4.55ms. Allocated memory is still 163.6MB. Free memory was 113.4MB in the beginning and 112.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-25 00:01:53,819 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 134.2MB. Free memory is still 108.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 790.71ms. Allocated memory is still 134.2MB. Free memory was 93.5MB in the beginning and 65.7MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.18ms. Allocated memory is still 134.2MB. Free memory was 65.7MB in the beginning and 63.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.28ms. Allocated memory is still 134.2MB. Free memory was 63.3MB in the beginning and 61.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 600.61ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 61.8MB in the beginning and 127.7MB in the end (delta: -65.9MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1635.00ms. Allocated memory is still 163.6MB. Free memory was 127.4MB in the beginning and 113.4MB in the end (delta: 14.0MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Witness Printer took 4.55ms. Allocated memory is still 163.6MB. Free memory was 113.4MB in the beginning and 112.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet31 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 - DataRaceFoundResult [Line: 931]: Data race detected [2023-11-25 00:01:53,839 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre34 could not be translated [2023-11-25 00:01:53,840 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet31 could not be translated [2023-11-25 00:01:53,841 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet31 could not be translated [2023-11-25 00:01:53,851 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre34 could not be translated [2023-11-25 00:01:53,852 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet31 could not be translated [2023-11-25 00:01:53,853 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet31 could not be translated Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, myglobal=0] [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={1:0}, mutex2={2:0}, myglobal=0] [L928] 0 pthread_t id; VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L929] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L922] EXPR 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L922] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L931] 0 myglobal+1 VAL [arg={0:0}, arg={0:0}, id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L922] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L931] 0 myglobal+1 VAL [arg={0:0}, arg={0:0}, id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [922] and C: myglobal+1 [931] - UnprovableResult [Line: 931]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 929]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 98 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68 mSDsluCounter, 341 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 130 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 211 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=466occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 3 MinimizatonAttempts, 86 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2023-11-25 00:01:53,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fddb34c-4929-4609-a43c-3c97a371ac21/bin/utaipan-verify-SwPr7d2a91/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