./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_7cb72e2e-de51-4479-8aef-95071a64c4d1/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb72e2e-de51-4479-8aef-95071a64c4d1/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb72e2e-de51-4479-8aef-95071a64c4d1/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb72e2e-de51-4479-8aef-95071a64c4d1/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb72e2e-de51-4479-8aef-95071a64c4d1/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb72e2e-de51-4479-8aef-95071a64c4d1/bin/utaipan-verify-NcY6lQBIFX --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 02b1c265b98bd14cc97fe77543b4e06699576e2091fa3d4102d013e6b3937418 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:08:42,570 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:08:42,660 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb72e2e-de51-4479-8aef-95071a64c4d1/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 00:08:42,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:08:42,668 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:08:42,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:08:42,698 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:08:42,699 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:08:42,700 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:08:42,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:08:42,701 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:08:42,702 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:08:42,702 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:08:42,703 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:08:42,704 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:08:42,704 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:08:42,705 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:08:42,706 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:08:42,706 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:08:42,707 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:08:42,707 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:08:42,708 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:08:42,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:08:42,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:08:42,711 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:08:42,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:08:42,712 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:08:42,712 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:08:42,713 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:08:42,713 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:08:42,714 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:08:42,714 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:08:42,715 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:08:42,715 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:08:42,715 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:08:42,715 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:08:42,716 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:08:42,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:08:42,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:42,717 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:08:42,717 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:08:42,718 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:08:42,718 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:08:42,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:08:42,719 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:08:42,719 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:08:42,719 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:08:42,720 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_7cb72e2e-de51-4479-8aef-95071a64c4d1/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb72e2e-de51-4479-8aef-95071a64c4d1/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02b1c265b98bd14cc97fe77543b4e06699576e2091fa3d4102d013e6b3937418 [2023-11-12 00:08:42,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:08:42,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:08:42,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:08:42,996 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:08:42,996 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:08:42,998 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb72e2e-de51-4479-8aef-95071a64c4d1/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2023-11-12 00:08:46,267 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:08:46,628 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:08:46,629 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb72e2e-de51-4479-8aef-95071a64c4d1/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2023-11-12 00:08:46,659 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb72e2e-de51-4479-8aef-95071a64c4d1/bin/utaipan-verify-NcY6lQBIFX/data/9f32bf12f/7b1c3f4d1f194c3b86d8d440e8a8ea67/FLAGde4592f9b [2023-11-12 00:08:46,677 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb72e2e-de51-4479-8aef-95071a64c4d1/bin/utaipan-verify-NcY6lQBIFX/data/9f32bf12f/7b1c3f4d1f194c3b86d8d440e8a8ea67 [2023-11-12 00:08:46,685 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:08:46,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:08:46,694 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:46,694 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:08:46,700 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:08:46,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:46" (1/1) ... [2023-11-12 00:08:46,705 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4977c701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:46, skipping insertion in model container [2023-11-12 00:08:46,705 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:08:46" (1/1) ... [2023-11-12 00:08:46,815 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:08:46,985 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:08:47,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:47,643 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:08:47,656 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:08:47,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:08:47,840 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:47,840 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:47,840 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:08:47,852 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:08:47,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:47 WrapperNode [2023-11-12 00:08:47,853 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:08:47,854 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:08:47,854 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:08:47,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:08:47,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:47" (1/1) ... [2023-11-12 00:08:47,908 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:47" (1/1) ... [2023-11-12 00:08:47,956 INFO L138 Inliner]: procedures = 468, calls = 53, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 153 [2023-11-12 00:08:47,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:08:47,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:08:47,958 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:08:47,958 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:08:47,968 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:47" (1/1) ... [2023-11-12 00:08:47,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:47" (1/1) ... [2023-11-12 00:08:47,975 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:47" (1/1) ... [2023-11-12 00:08:47,975 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:47" (1/1) ... [2023-11-12 00:08:47,992 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:47" (1/1) ... [2023-11-12 00:08:47,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:47" (1/1) ... [2023-11-12 00:08:48,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:47" (1/1) ... [2023-11-12 00:08:48,004 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:47" (1/1) ... [2023-11-12 00:08:48,011 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:08:48,012 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:08:48,013 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:08:48,013 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:08:48,014 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:47" (1/1) ... [2023-11-12 00:08:48,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:08:48,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb72e2e-de51-4479-8aef-95071a64c4d1/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:08:48,050 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb72e2e-de51-4479-8aef-95071a64c4d1/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:08:48,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cb72e2e-de51-4479-8aef-95071a64c4d1/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:08:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:08:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:08:48,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:08:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:08:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:08:48,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:08:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:08:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:08:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-12 00:08:48,116 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-12 00:08:48,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:08:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:08:48,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:08:48,118 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:08:48,421 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:08:48,424 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:08:48,816 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:08:48,848 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:08:48,848 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:08:48,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:48 BoogieIcfgContainer [2023-11-12 00:08:48,852 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:08:48,856 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:08:48,857 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:08:48,861 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:08:48,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:08:46" (1/3) ... [2023-11-12 00:08:48,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340608d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:08:48, skipping insertion in model container [2023-11-12 00:08:48,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:08:47" (2/3) ... [2023-11-12 00:08:48,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340608d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:08:48, skipping insertion in model container [2023-11-12 00:08:48,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:08:48" (3/3) ... [2023-11-12 00:08:48,866 INFO L112 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2023-11-12 00:08:48,879 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:08:48,890 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:08:48,891 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-12 00:08:48,891 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:08:48,984 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-12 00:08:49,034 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:08:49,065 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 208 places, 216 transitions, 446 flow [2023-11-12 00:08:49,068 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 208 places, 216 transitions, 446 flow [2023-11-12 00:08:49,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 208 places, 216 transitions, 446 flow [2023-11-12 00:08:49,219 INFO L124 PetriNetUnfolderBase]: 18/270 cut-off events. [2023-11-12 00:08:49,221 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 00:08:49,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 270 events. 18/270 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 499 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 153. Up to 4 conditions per place. [2023-11-12 00:08:49,235 INFO L119 LiptonReduction]: Number of co-enabled transitions 4004 [2023-11-12 00:09:53,295 INFO L134 LiptonReduction]: Checked pairs total: 8610 [2023-11-12 00:09:53,296 INFO L136 LiptonReduction]: Total number of compositions: 264 [2023-11-12 00:09:53,305 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 30 transitions, 74 flow [2023-11-12 00:09:53,354 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 274 states, 254 states have (on average 2.763779527559055) internal successors, (702), 273 states have internal predecessors, (702), 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) [2023-11-12 00:09:53,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:09:53,380 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;@21acd043, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:09:53,381 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-12 00:09:53,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 274 states, 254 states have (on average 2.763779527559055) internal successors, (702), 273 states have internal predecessors, (702), 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) [2023-11-12 00:09:53,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:09:53,390 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:09:53,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:09:53,391 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting my_callbackErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-11-12 00:09:53,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:09:53,396 INFO L85 PathProgramCache]: Analyzing trace with hash 24768991, now seen corresponding path program 1 times [2023-11-12 00:09:53,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:09:53,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136349326] [2023-11-12 00:09:53,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:53,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:09:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat