./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_46a-escape_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/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_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_46a-escape_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/bin/utaipan-verify-SwPr7d2a91 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 33eb4dcd0a621d6c4bb6626c0e74463917de75952c777f271b8d23f0dedf14cb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:58:09,061 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:58:09,188 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-24 23:58:09,193 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:58:09,194 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:58:09,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:58:09,249 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:58:09,250 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:58:09,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:58:09,256 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:58:09,257 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:58:09,257 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:58:09,258 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:58:09,258 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:58:09,259 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:58:09,259 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:58:09,260 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:58:09,260 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:58:09,261 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:58:09,261 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:58:09,262 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:58:09,263 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:58:09,263 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:58:09,264 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:58:09,264 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:58:09,277 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:58:09,277 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:58:09,277 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:58:09,278 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:58:09,278 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:58:09,279 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:58:09,279 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:58:09,279 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:58:09,280 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:58:09,280 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:58:09,280 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:58:09,281 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:58:09,281 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:58:09,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:58:09,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:58:09,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:58:09,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:58:09,282 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:58:09,283 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:58:09,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:58:09,283 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:58:09,283 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:58:09,283 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:58:09,284 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:58:09,284 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_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33eb4dcd0a621d6c4bb6626c0e74463917de75952c777f271b8d23f0dedf14cb [2023-11-24 23:58:09,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:58:09,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:58:09,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:58:09,644 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:58:09,644 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:58:09,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/goblint-regression/04-mutex_46a-escape_nr.i [2023-11-24 23:58:12,785 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:58:13,128 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:58:13,128 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/sv-benchmarks/c/goblint-regression/04-mutex_46a-escape_nr.i [2023-11-24 23:58:13,157 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/bin/utaipan-verify-SwPr7d2a91/data/83db84c1a/233aefbb3bf14397b406bb64a286d953/FLAGbe72758f2 [2023-11-24 23:58:13,188 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/bin/utaipan-verify-SwPr7d2a91/data/83db84c1a/233aefbb3bf14397b406bb64a286d953 [2023-11-24 23:58:13,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:58:13,193 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:58:13,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:58:13,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:58:13,201 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:58:13,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:58:13" (1/1) ... [2023-11-24 23:58:13,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a069af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:13, skipping insertion in model container [2023-11-24 23:58:13,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:58:13" (1/1) ... [2023-11-24 23:58:13,272 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:58:13,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:58:13,764 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:58:13,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:58:13,890 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:58:13,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:13 WrapperNode [2023-11-24 23:58:13,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:58:13,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:58:13,893 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:58:13,893 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:58:13,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:13" (1/1) ... [2023-11-24 23:58:13,921 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:13" (1/1) ... [2023-11-24 23:58:13,945 INFO L138 Inliner]: procedures = 264, calls = 26, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2023-11-24 23:58:13,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:58:13,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:58:13,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:58:13,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:58:13,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:13" (1/1) ... [2023-11-24 23:58:13,957 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:13" (1/1) ... [2023-11-24 23:58:13,962 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:13" (1/1) ... [2023-11-24 23:58:13,962 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:13" (1/1) ... [2023-11-24 23:58:13,970 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:13" (1/1) ... [2023-11-24 23:58:13,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:13" (1/1) ... [2023-11-24 23:58:13,974 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:13" (1/1) ... [2023-11-24 23:58:13,976 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:13" (1/1) ... [2023-11-24 23:58:13,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:58:13,989 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:58:13,990 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:58:13,990 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:58:13,991 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:13" (1/1) ... [2023-11-24 23:58:13,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:58:14,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:58:14,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:58:14,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:58:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:58:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:58:14,078 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-24 23:58:14,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:58:14,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:58:14,081 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-24 23:58:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:58:14,082 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-24 23:58:14,082 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-24 23:58:14,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:58:14,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:58:14,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:58:14,085 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 23:58:14,353 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:58:14,359 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:58:14,593 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:58:14,798 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:58:14,798 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:58:14,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:58:14 BoogieIcfgContainer [2023-11-24 23:58:14,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:58:14,802 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:58:14,802 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:58:14,806 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:58:14,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:58:13" (1/3) ... [2023-11-24 23:58:14,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d993212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:58:14, skipping insertion in model container [2023-11-24 23:58:14,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:13" (2/3) ... [2023-11-24 23:58:14,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d993212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:58:14, skipping insertion in model container [2023-11-24 23:58:14,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:58:14" (3/3) ... [2023-11-24 23:58:14,809 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46a-escape_nr.i [2023-11-24 23:58:14,819 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 23:58:14,833 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:58:14,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-24 23:58:14,833 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 23:58:14,895 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-24 23:58:14,937 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 23 transitions, 53 flow [2023-11-24 23:58:14,969 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 93 states, 85 states have (on average 1.9294117647058824) internal successors, (164), 92 states have internal predecessors, (164), 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) [2023-11-24 23:58:14,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:58:14,999 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;@3a6bd0d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:58:15,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-24 23:58:15,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 85 states have (on average 1.9294117647058824) internal successors, (164), 92 states have internal predecessors, (164), 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) [2023-11-24 23:58:15,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:58:15,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:58:15,010 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 23:58:15,010 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-24 23:58:15,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:58:15,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1340238870, now seen corresponding path program 1 times [2023-11-24 23:58:15,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:58:15,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583263709] [2023-11-24 23:58:15,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:58:15,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:58:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:58:15,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:58:15,631 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:58:15,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583263709] [2023-11-24 23:58:15,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583263709] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:58:15,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:58:15,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:58:15,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905196068] [2023-11-24 23:58:15,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:58:15,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 23:58:15,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:58:15,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 23:58:15,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 23:58:15,679 INFO L87 Difference]: Start difference. First operand has 93 states, 85 states have (on average 1.9294117647058824) internal successors, (164), 92 states have internal predecessors, (164), 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 4 states, 3 states have (on average 2.0) 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) [2023-11-24 23:58:15,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:58:15,809 INFO L93 Difference]: Finished difference Result 89 states and 155 transitions. [2023-11-24 23:58:15,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 23:58:15,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) 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 [2023-11-24 23:58:15,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:58:15,823 INFO L225 Difference]: With dead ends: 89 [2023-11-24 23:58:15,823 INFO L226 Difference]: Without dead ends: 89 [2023-11-24 23:58:15,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-24 23:58:15,829 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 24 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:58:15,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 11 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:58:15,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-24 23:58:15,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-24 23:58:15,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 83 states have (on average 1.8674698795180722) internal successors, (155), 88 states have internal predecessors, (155), 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) [2023-11-24 23:58:15,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 155 transitions. [2023-11-24 23:58:15,874 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 155 transitions. Word has length 6 [2023-11-24 23:58:15,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:58:15,875 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 155 transitions. [2023-11-24 23:58:15,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) 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) [2023-11-24 23:58:15,875 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 155 transitions. [2023-11-24 23:58:15,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:58:15,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:58:15,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-24 23:58:15,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:58:15,877 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-24 23:58:15,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:58:15,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1340851411, now seen corresponding path program 1 times [2023-11-24 23:58:15,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:58:15,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406694091] [2023-11-24 23:58:15,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:58:15,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:58:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:58:16,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:58:16,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:58:16,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406694091] [2023-11-24 23:58:16,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406694091] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:58:16,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:58:16,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 23:58:16,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852209141] [2023-11-24 23:58:16,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:58:16,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:58:16,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:58:16,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:58:16,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:58:16,197 INFO L87 Difference]: Start difference. First operand 89 states and 155 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2023-11-24 23:58:16,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:58:16,344 INFO L93 Difference]: Finished difference Result 86 states and 148 transitions. [2023-11-24 23:58:16,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 23:58:16,344 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 [2023-11-24 23:58:16,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:58:16,346 INFO L225 Difference]: With dead ends: 86 [2023-11-24 23:58:16,346 INFO L226 Difference]: Without dead ends: 86 [2023-11-24 23:58:16,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-24 23:58:16,348 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 50 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:58:16,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 18 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:58:16,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-11-24 23:58:16,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-11-24 23:58:16,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 81 states have (on average 1.8271604938271604) internal successors, (148), 85 states have internal predecessors, (148), 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) [2023-11-24 23:58:16,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 148 transitions. [2023-11-24 23:58:16,369 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 148 transitions. Word has length 6 [2023-11-24 23:58:16,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:58:16,369 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 148 transitions. [2023-11-24 23:58:16,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2023-11-24 23:58:16,369 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 148 transitions. [2023-11-24 23:58:16,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:58:16,370 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:58:16,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:58:16,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:58:16,371 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-24 23:58:16,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:58:16,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1402267811, now seen corresponding path program 1 times [2023-11-24 23:58:16,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:58:16,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310627159] [2023-11-24 23:58:16,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:58:16,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:58:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:58:16,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:58:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:58:16,451 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:58:16,451 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:58:16,455 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2023-11-24 23:58:16,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2023-11-24 23:58:16,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-24 23:58:16,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2023-11-24 23:58:16,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2023-11-24 23:58:16,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2023-11-24 23:58:16,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2023-11-24 23:58:16,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:58:16,472 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-24 23:58:16,480 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-24 23:58:16,481 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:58:16,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind [2023-11-24 23:58:16,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre35 could not be translated [2023-11-24 23:58:16,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner [2023-11-24 23:58:16,503 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers [2023-11-24 23:58:16,503 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock [2023-11-24 23:58:16,503 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count [2023-11-24 23:58:16,504 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner [2023-11-24 23:58:16,504 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind [2023-11-24 23:58:16,504 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-11-24 23:58:16,504 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post39 could not be translated [2023-11-24 23:58:16,505 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers [2023-11-24 23:58:16,505 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock [2023-11-24 23:58:16,505 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count [2023-11-24 23:58:16,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:58:16 BasicIcfg [2023-11-24 23:58:16,512 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:58:16,513 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:58:16,513 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:58:16,513 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:58:16,514 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:58:14" (3/4) ... [2023-11-24 23:58:16,515 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-24 23:58:16,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind [2023-11-24 23:58:16,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner [2023-11-24 23:58:16,539 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre35 could not be translated [2023-11-24 23:58:16,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers [2023-11-24 23:58:16,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock [2023-11-24 23:58:16,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count [2023-11-24 23:58:16,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post39 could not be translated [2023-11-24 23:58:16,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner [2023-11-24 23:58:16,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind [2023-11-24 23:58:16,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-11-24 23:58:16,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers [2023-11-24 23:58:16,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock [2023-11-24 23:58:16,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count [2023-11-24 23:58:16,596 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/bin/utaipan-verify-SwPr7d2a91/witness.graphml [2023-11-24 23:58:16,596 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:58:16,597 INFO L158 Benchmark]: Toolchain (without parser) took 3403.31ms. Allocated memory is still 174.1MB. Free memory was 141.6MB in the beginning and 89.1MB in the end (delta: 52.5MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2023-11-24 23:58:16,597 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:58:16,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 696.52ms. Allocated memory is still 174.1MB. Free memory was 141.1MB in the beginning and 113.6MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-24 23:58:16,598 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.93ms. Allocated memory is still 174.1MB. Free memory was 113.6MB in the beginning and 111.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:58:16,598 INFO L158 Benchmark]: Boogie Preprocessor took 41.78ms. Allocated memory is still 174.1MB. Free memory was 111.7MB in the beginning and 110.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:58:16,599 INFO L158 Benchmark]: RCFGBuilder took 809.77ms. Allocated memory is still 174.1MB. Free memory was 110.1MB in the beginning and 121.1MB in the end (delta: -11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:58:16,599 INFO L158 Benchmark]: TraceAbstraction took 1710.33ms. Allocated memory is still 174.1MB. Free memory was 120.4MB in the beginning and 92.2MB in the end (delta: 28.1MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2023-11-24 23:58:16,599 INFO L158 Benchmark]: Witness Printer took 83.24ms. Allocated memory is still 174.1MB. Free memory was 92.2MB in the beginning and 89.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:58:16,602 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 696.52ms. Allocated memory is still 174.1MB. Free memory was 141.1MB in the beginning and 113.6MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.93ms. Allocated memory is still 174.1MB. Free memory was 113.6MB in the beginning and 111.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.78ms. Allocated memory is still 174.1MB. Free memory was 111.7MB in the beginning and 110.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 809.77ms. Allocated memory is still 174.1MB. Free memory was 110.1MB in the beginning and 121.1MB in the end (delta: -11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1710.33ms. Allocated memory is still 174.1MB. Free memory was 120.4MB in the beginning and 92.2MB in the end (delta: 28.1MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * Witness Printer took 83.24ms. Allocated memory is still 174.1MB. Free memory was 92.2MB in the beginning and 89.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~mutex2~0.__data.__count - 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 - CounterExampleResult [Line: 934]: integer overflow possible integer overflow possible We found a FailurePath: [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L920] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L929] 0 pthread_t id; [L930] 0 int i = __VERIFIER_nondet_int(); [L930] 0 int i = __VERIFIER_nondet_int(); [L932] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, (void *) &i) VAL [arg={3:0}, i={3:0}, id={2:0}, mutex1={1:0}] [L934] EXPR 0 \read(i) [L934] 0 i++ VAL [arg={3:0}, i={3:0}, id={2:0}, mutex1={1:0}] - UnprovableResult [Line: 934]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 932]: 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: 924]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 924]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 35 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 74 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 135 IncrementalHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 15 mSDtfsCounter, 135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-24 23:58:16,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3399770-1dd3-4d1a-8a70-d1d8b1e57997/bin/utaipan-verify-SwPr7d2a91/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)