./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje --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 10aecdd717bb6691571ad1da0b912f030832fb85361f767ea82293acfe046216 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:05:17,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:05:17,575 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 06:05:17,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:05:17,584 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:05:17,606 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:05:17,607 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:05:17,608 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:05:17,608 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:05:17,609 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:05:17,609 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:05:17,610 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:05:17,610 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:05:17,611 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:05:17,611 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:05:17,612 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:05:17,612 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:05:17,613 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:05:17,613 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:05:17,613 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:05:17,614 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:05:17,615 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:05:17,615 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:05:17,616 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:05:17,616 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:05:17,617 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:05:17,617 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:05:17,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:05:17,618 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:05:17,618 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:05:17,619 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:05:17,619 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:05:17,620 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 06:05:17,620 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 06:05:17,620 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:05:17,621 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:05:17,621 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:05:17,622 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:05:17,626 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:05:17,626 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:05:17,626 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:05:17,627 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:05:17,627 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:05:17,627 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:05:17,628 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:05:17,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:05:17,629 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:05:17,629 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:05:17,629 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:05:17,629 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_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10aecdd717bb6691571ad1da0b912f030832fb85361f767ea82293acfe046216 [2024-11-09 06:05:17,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:05:17,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:05:17,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:05:17,975 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:05:17,977 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:05:17,979 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i Unable to find full path for "g++" [2024-11-09 06:05:19,971 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:05:20,226 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:05:20,227 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/sv-benchmarks/c/ldv-sets/test_mutex_unbounded-1.i [2024-11-09 06:05:20,242 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/data/c121498b6/69dd9fcc6df040529aee17098a9a4b2a/FLAG618d3ca33 [2024-11-09 06:05:20,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/data/c121498b6/69dd9fcc6df040529aee17098a9a4b2a [2024-11-09 06:05:20,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:05:20,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:05:20,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:05:20,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:05:20,540 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:05:20,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:05:20" (1/1) ... [2024-11-09 06:05:20,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d92b679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:20, skipping insertion in model container [2024-11-09 06:05:20,542 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:05:20" (1/1) ... [2024-11-09 06:05:20,589 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:05:21,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:05:21,074 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:05:21,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:05:21,186 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:05:21,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:21 WrapperNode [2024-11-09 06:05:21,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:05:21,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:05:21,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:05:21,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:05:21,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:21" (1/1) ... [2024-11-09 06:05:21,212 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:21" (1/1) ... [2024-11-09 06:05:21,249 INFO L138 Inliner]: procedures = 142, calls = 65, calls flagged for inlining = 15, calls inlined = 14, statements flattened = 184 [2024-11-09 06:05:21,252 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:05:21,252 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:05:21,253 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:05:21,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:05:21,262 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:21" (1/1) ... [2024-11-09 06:05:21,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:21" (1/1) ... [2024-11-09 06:05:21,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:21" (1/1) ... [2024-11-09 06:05:21,268 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:21" (1/1) ... [2024-11-09 06:05:21,286 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:21" (1/1) ... [2024-11-09 06:05:21,290 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:21" (1/1) ... [2024-11-09 06:05:21,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:21" (1/1) ... [2024-11-09 06:05:21,294 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:21" (1/1) ... [2024-11-09 06:05:21,298 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:05:21,299 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:05:21,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:05:21,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:05:21,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:21" (1/1) ... [2024-11-09 06:05:21,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:05:21,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:05:21,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:05:21,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:05:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-09 06:05:21,381 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-09 06:05:21,381 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2024-11-09 06:05:21,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2024-11-09 06:05:21,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2024-11-09 06:05:21,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2024-11-09 06:05:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:05:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:05:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:05:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_in_set [2024-11-09 06:05:21,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_in_set [2024-11-09 06:05:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:05:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:05:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 06:05:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:05:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_successful_malloc [2024-11-09 06:05:21,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_successful_malloc [2024-11-09 06:05:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:05:21,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:05:21,605 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:05:21,607 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:05:22,030 INFO L? ?]: Removed 92 outVars from TransFormulas that were not future-live. [2024-11-09 06:05:22,031 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:05:22,217 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:05:22,217 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 06:05:22,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:05:22 BoogieIcfgContainer [2024-11-09 06:05:22,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:05:22,225 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:05:22,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:05:22,228 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:05:22,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:05:20" (1/3) ... [2024-11-09 06:05:22,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bedcdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:05:22, skipping insertion in model container [2024-11-09 06:05:22,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:05:21" (2/3) ... [2024-11-09 06:05:22,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33bedcdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:05:22, skipping insertion in model container [2024-11-09 06:05:22,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:05:22" (3/3) ... [2024-11-09 06:05:22,231 INFO L112 eAbstractionObserver]: Analyzing ICFG test_mutex_unbounded-1.i [2024-11-09 06:05:22,258 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:05:22,259 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 06:05:22,343 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:05:22,351 INFO L333 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, 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;@5b4f4a7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:05:22,352 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 06:05:22,356 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 46 states have internal predecessors, (61), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:05:22,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 06:05:22,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:05:22,366 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:05:22,367 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 06:05:22,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:05:22,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1160877467, now seen corresponding path program 1 times [2024-11-09 06:05:22,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:05:22,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710510820] [2024-11-09 06:05:22,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:05:22,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:05:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:05:22,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:05:22,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:05:22,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710510820] [2024-11-09 06:05:22,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710510820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:05:22,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:05:22,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:05:22,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460091908] [2024-11-09 06:05:22,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:05:22,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:05:22,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:05:23,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:05:23,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:05:23,020 INFO L87 Difference]: Start difference. First operand has 63 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 46 states have internal predecessors, (61), 11 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:05:23,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:05:23,171 INFO L93 Difference]: Finished difference Result 120 states and 161 transitions. [2024-11-09 06:05:23,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:05:23,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 16 [2024-11-09 06:05:23,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:05:23,183 INFO L225 Difference]: With dead ends: 120 [2024-11-09 06:05:23,183 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 06:05:23,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:05:23,195 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 1 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:05:23,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 178 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:05:23,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 06:05:23,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-09 06:05:23,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 06:05:23,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2024-11-09 06:05:23,247 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 16 [2024-11-09 06:05:23,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:05:23,248 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2024-11-09 06:05:23,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 06:05:23,249 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2024-11-09 06:05:23,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 06:05:23,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:05:23,253 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-09 06:05:23,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:05:23,254 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 06:05:23,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:05:23,255 INFO L85 PathProgramCache]: Analyzing trace with hash -34108368, now seen corresponding path program 1 times [2024-11-09 06:05:23,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:05:23,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408023135] [2024-11-09 06:05:23,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:05:23,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:05:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:05:23,615 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 06:05:23,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:05:23,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408023135] [2024-11-09 06:05:23,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408023135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:05:23,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948800385] [2024-11-09 06:05:23,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:05:23,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:05:23,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:05:23,621 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:05:23,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:05:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:05:23,837 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:05:23,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:05:23,947 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 06:05:23,947 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:05:23,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948800385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:05:23,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:05:23,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 06:05:23,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116836160] [2024-11-09 06:05:23,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:05:23,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:05:23,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:05:23,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:05:23,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:05:23,954 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-09 06:05:24,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:05:24,052 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2024-11-09 06:05:24,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:05:24,053 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 32 [2024-11-09 06:05:24,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:05:24,054 INFO L225 Difference]: With dead ends: 27 [2024-11-09 06:05:24,054 INFO L226 Difference]: Without dead ends: 26 [2024-11-09 06:05:24,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 06:05:24,056 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:05:24,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 47 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:05:24,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-09 06:05:24,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-09 06:05:24,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 06:05:24,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2024-11-09 06:05:24,063 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 32 [2024-11-09 06:05:24,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:05:24,064 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-11-09 06:05:24,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-09 06:05:24,064 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2024-11-09 06:05:24,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 06:05:24,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:05:24,065 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-09 06:05:24,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 06:05:24,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:05:24,266 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 06:05:24,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:05:24,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1057359335, now seen corresponding path program 1 times [2024-11-09 06:05:24,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:05:24,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537572057] [2024-11-09 06:05:24,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:05:24,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:05:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:05:24,465 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 06:05:24,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:05:24,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537572057] [2024-11-09 06:05:24,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537572057] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:05:24,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297456301] [2024-11-09 06:05:24,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:05:24,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:05:24,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:05:24,470 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:05:24,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:05:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:05:24,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 06:05:24,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:05:24,706 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 06:05:24,707 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:05:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 06:05:24,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297456301] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:05:24,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1727761539] [2024-11-09 06:05:24,842 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-09 06:05:24,842 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:05:24,846 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:05:24,852 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:05:24,852 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:05:27,277 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 95 for LOIs [2024-11-09 06:05:27,344 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_list_add with input of size 31 for LOIs [2024-11-09 06:05:27,474 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 39 for LOIs [2024-11-09 06:05:27,483 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:05:30,799 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '667#(and (= |~#drvlist~0.offset| 0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_foo_~N~0#1|) (= |~#mutexes~0.base| 3) (= |~#mutexes~0.offset| 0) (<= |ULTIMATE.start_foo_~N~0#1| 2147483647) (= 4 |~#drvlist~0.base|))' at error location [2024-11-09 06:05:30,800 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:05:30,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:05:30,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-09 06:05:30,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264725621] [2024-11-09 06:05:30,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:05:30,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 06:05:30,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:05:30,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 06:05:30,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2024-11-09 06:05:30,803 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 6 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-09 06:05:30,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:05:30,935 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2024-11-09 06:05:30,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 06:05:30,936 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 6 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) Word has length 33 [2024-11-09 06:05:30,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:05:30,937 INFO L225 Difference]: With dead ends: 51 [2024-11-09 06:05:30,937 INFO L226 Difference]: Without dead ends: 50 [2024-11-09 06:05:30,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2024-11-09 06:05:30,939 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:05:30,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:05:30,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-09 06:05:30,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-09 06:05:30,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 06:05:30,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2024-11-09 06:05:30,949 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 33 [2024-11-09 06:05:30,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:05:30,949 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2024-11-09 06:05:30,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 6 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-09 06:05:30,950 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2024-11-09 06:05:30,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 06:05:30,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:05:30,952 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1] [2024-11-09 06:05:30,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 06:05:31,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:05:31,153 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 06:05:31,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:05:31,154 INFO L85 PathProgramCache]: Analyzing trace with hash 287081688, now seen corresponding path program 2 times [2024-11-09 06:05:31,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:05:31,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833965991] [2024-11-09 06:05:31,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:05:31,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:05:31,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:05:31,642 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-09 06:05:31,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:05:31,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833965991] [2024-11-09 06:05:31,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833965991] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:05:31,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432689542] [2024-11-09 06:05:31,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:05:31,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:05:31,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:05:31,648 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:05:31,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:05:31,870 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-09 06:05:31,870 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:05:31,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:05:31,877 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:05:32,004 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-09 06:05:32,004 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:05:32,200 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-09 06:05:32,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432689542] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:05:32,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1515658315] [2024-11-09 06:05:32,204 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-09 06:05:32,204 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:05:32,205 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:05:32,205 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:05:32,205 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:05:33,757 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_successful_malloc with input of size 95 for LOIs [2024-11-09 06:05:33,815 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_list_add with input of size 31 for LOIs [2024-11-09 06:05:33,917 INFO L197 IcfgInterpreter]: Interpreting procedure __ldv_list_add with input of size 39 for LOIs [2024-11-09 06:05:33,925 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:05:37,501 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1321#(and (= |~#drvlist~0.offset| 0) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_foo_~N~0#1|) (= |~#mutexes~0.base| 3) (= |~#mutexes~0.offset| 0) (<= |ULTIMATE.start_foo_~N~0#1| 2147483647) (= 4 |~#drvlist~0.base|))' at error location [2024-11-09 06:05:37,501 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 06:05:37,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:05:37,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2024-11-09 06:05:37,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361931094] [2024-11-09 06:05:37,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 06:05:37,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-09 06:05:37,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:05:37,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-09 06:05:37,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=711, Unknown=0, NotChecked=0, Total=812 [2024-11-09 06:05:37,505 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 8 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-09 06:05:38,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:05:38,056 INFO L93 Difference]: Finished difference Result 59 states and 70 transitions. [2024-11-09 06:05:38,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 06:05:38,056 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 8 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 81 [2024-11-09 06:05:38,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:05:38,057 INFO L225 Difference]: With dead ends: 59 [2024-11-09 06:05:38,058 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 06:05:38,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 223 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=212, Invalid=1428, Unknown=0, NotChecked=0, Total=1640 [2024-11-09 06:05:38,059 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:05:38,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:05:38,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 06:05:38,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 06:05:38,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:05:38,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 06:05:38,061 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 81 [2024-11-09 06:05:38,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:05:38,061 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 06:05:38,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 15 states have internal predecessors, (48), 8 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-09 06:05:38,062 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 06:05:38,062 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 06:05:38,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 06:05:38,065 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 06:05:38,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 06:05:38,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:05:38,269 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-11-09 06:05:38,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 06:05:38,437 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:05:38,460 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-09 06:05:38,461 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-09 06:05:38,461 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-09 06:05:38,467 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-09 06:05:38,467 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-09 06:05:38,467 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-09 06:05:38,467 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable mutexes by function ldv_list_add [2024-11-09 06:05:38,467 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable drvlist by function ldv_list_add [2024-11-09 06:05:38,468 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-09 06:05:38,468 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-09 06:05:38,469 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-09 06:05:38,469 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-09 06:05:38,470 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-09 06:05:38,470 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-09 06:05:38,470 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-09 06:05:38,471 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-09 06:05:38,471 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-09 06:05:38,471 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable mutexes by function __ldv_list_add [2024-11-09 06:05:38,471 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable drvlist by function __ldv_list_add [2024-11-09 06:05:38,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:05:38 BoogieIcfgContainer [2024-11-09 06:05:38,472 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:05:38,472 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:05:38,473 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:05:38,473 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:05:38,473 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:05:22" (3/4) ... [2024-11-09 06:05:38,477 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 06:05:38,482 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reach_error [2024-11-09 06:05:38,483 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_list_add [2024-11-09 06:05:38,483 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_is_in_set [2024-11-09 06:05:38,484 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_successful_malloc [2024-11-09 06:05:38,484 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __ldv_list_add [2024-11-09 06:05:38,494 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2024-11-09 06:05:38,495 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-09 06:05:38,495 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 06:05:38,496 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 06:05:38,623 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:05:38,626 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 06:05:38,627 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:05:38,627 INFO L158 Benchmark]: Toolchain (without parser) took 18095.15ms. Allocated memory was 148.9MB in the beginning and 400.6MB in the end (delta: 251.7MB). Free memory was 109.4MB in the beginning and 161.1MB in the end (delta: -51.7MB). Peak memory consumption was 202.8MB. Max. memory is 16.1GB. [2024-11-09 06:05:38,628 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 100.7MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:05:38,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 653.42ms. Allocated memory is still 148.9MB. Free memory was 109.1MB in the beginning and 86.1MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 06:05:38,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.25ms. Allocated memory is still 148.9MB. Free memory was 86.1MB in the beginning and 83.5MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:05:38,630 INFO L158 Benchmark]: Boogie Preprocessor took 46.07ms. Allocated memory is still 148.9MB. Free memory was 83.5MB in the beginning and 81.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:05:38,631 INFO L158 Benchmark]: RCFGBuilder took 923.34ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 80.6MB in the beginning and 146.3MB in the end (delta: -65.6MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. [2024-11-09 06:05:38,631 INFO L158 Benchmark]: TraceAbstraction took 16246.88ms. Allocated memory was 180.4MB in the beginning and 400.6MB in the end (delta: 220.2MB). Free memory was 145.2MB in the beginning and 168.4MB in the end (delta: -23.2MB). Peak memory consumption was 195.9MB. Max. memory is 16.1GB. [2024-11-09 06:05:38,631 INFO L158 Benchmark]: Witness Printer took 154.38ms. Allocated memory is still 400.6MB. Free memory was 168.4MB in the beginning and 161.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 06:05:38,634 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 100.7MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 653.42ms. Allocated memory is still 148.9MB. Free memory was 109.1MB in the beginning and 86.1MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.25ms. Allocated memory is still 148.9MB. Free memory was 86.1MB in the beginning and 83.5MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.07ms. Allocated memory is still 148.9MB. Free memory was 83.5MB in the beginning and 81.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 923.34ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 80.6MB in the beginning and 146.3MB in the end (delta: -65.6MB). Peak memory consumption was 46.7MB. Max. memory is 16.1GB. * TraceAbstraction took 16246.88ms. Allocated memory was 180.4MB in the beginning and 400.6MB in the end (delta: 220.2MB). Free memory was 145.2MB in the beginning and 168.4MB in the end (delta: -23.2MB). Peak memory consumption was 195.9MB. Max. memory is 16.1GB. * Witness Printer took 154.38ms. Allocated memory is still 400.6MB. Free memory was 168.4MB in the beginning and 161.1MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable mutexes by function ldv_list_add - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable drvlist by function ldv_list_add - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable mutexes by function __ldv_list_add - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot encode non-modifiability of on-heap variable drvlist by function __ldv_list_add * 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 - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 693]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 63 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 16.0s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 312 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 222 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 236 IncrementalHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 90 mSDtfsCounter, 236 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 405 GetRequests, 332 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=0, InterpolantAutomatonStates: 35, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 308 NumberOfCodeBlocks, 244 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 413 ConstructedInterpolants, 0 QuantifiedInterpolants, 823 SizeOfPredicates, 2 NumberOfNonLiveVariables, 762 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 391/558 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 693]: Loop Invariant Derived loop invariant: (((N <= 2147483647) && (1 <= i)) || ((i == 0) && (N <= 2147483647))) - ProcedureContractResult [Line: 566]: Procedure Contract for reach_error Derived contract for procedure reach_error. Ensures: (0 && ((mutexes == \old(mutexes)) && (drvlist == \old(drvlist)))) - ProcedureContractResult [Line: 657]: Procedure Contract for ldv_is_in_set Derived contract for procedure ldv_is_in_set. Ensures: ((mutexes == \old(mutexes)) && (drvlist == \old(drvlist))) - ProcedureContractResult [Line: 579]: Procedure Contract for ldv_successful_malloc Derived contract for procedure ldv_successful_malloc. Ensures: ((mutexes == \old(mutexes)) && (drvlist == \old(drvlist))) RESULT: Ultimate proved your program to be correct! [2024-11-09 06:05:38,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff4bdcd8-af44-4dfa-8cb5-973838117b35/bin/utaipan-verify-YMUCfTKeje/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 Result: TRUE