./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing-overflow.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ --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 8e4241de9ab6aaee40e34a0aea220f2af2541cd79c1f3c4ee08672ad0bf05f65 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:08:49,106 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:08:49,193 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-19 05:08:49,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:08:49,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:08:49,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:08:49,246 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:08:49,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:08:49,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:08:49,253 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:08:49,254 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:08:49,254 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:08:49,255 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:08:49,256 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:08:49,257 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:08:49,257 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:08:49,258 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:08:49,258 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:08:49,259 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:08:49,259 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:08:49,260 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:08:49,260 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:08:49,261 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:08:49,262 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:08:49,262 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:08:49,263 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:08:49,263 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:08:49,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:08:49,264 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:08:49,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:08:49,266 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:08:49,267 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:08:49,267 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:08:49,267 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:08:49,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:08:49,268 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:08:49,268 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:08:49,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:08:49,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:08:49,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:08:49,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:08:49,270 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:08:49,271 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:08:49,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:08:49,272 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:08:49,272 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:08:49,272 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:08:49,273 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_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e4241de9ab6aaee40e34a0aea220f2af2541cd79c1f3c4ee08672ad0bf05f65 [2023-11-19 05:08:49,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:08:49,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:08:49,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:08:49,617 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:08:49,618 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:08:49,619 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing-overflow.i [2023-11-19 05:08:52,778 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:08:53,101 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:08:53,101 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd748cd9-4e76-4213-8f45-0b016d0d79b5/sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing-overflow.i [2023-11-19 05:08:53,134 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ/data/b14eb3bdb/6679f65329214a68a2178be76eeca14c/FLAG1e103eade [2023-11-19 05:08:53,154 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ/data/b14eb3bdb/6679f65329214a68a2178be76eeca14c [2023-11-19 05:08:53,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:08:53,162 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:08:53,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:08:53,166 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:08:53,172 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:08:53,174 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:08:53" (1/1) ... [2023-11-19 05:08:53,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@564ec32a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:53, skipping insertion in model container [2023-11-19 05:08:53,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:08:53" (1/1) ... [2023-11-19 05:08:53,249 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:08:53,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:08:53,766 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:08:53,839 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:08:53,911 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:08:53,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:53 WrapperNode [2023-11-19 05:08:53,911 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:08:53,912 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:08:53,912 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:08:53,913 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:08:53,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:53" (1/1) ... [2023-11-19 05:08:53,946 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:53" (1/1) ... [2023-11-19 05:08:53,995 INFO L138 Inliner]: procedures = 271, calls = 57, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 224 [2023-11-19 05:08:53,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:08:53,997 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:08:53,997 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:08:53,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:08:54,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:53" (1/1) ... [2023-11-19 05:08:54,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:53" (1/1) ... [2023-11-19 05:08:54,022 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:53" (1/1) ... [2023-11-19 05:08:54,022 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:53" (1/1) ... [2023-11-19 05:08:54,038 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:53" (1/1) ... [2023-11-19 05:08:54,053 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:53" (1/1) ... [2023-11-19 05:08:54,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:53" (1/1) ... [2023-11-19 05:08:54,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:53" (1/1) ... [2023-11-19 05:08:54,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:08:54,064 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:08:54,064 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:08:54,064 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:08:54,065 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:53" (1/1) ... [2023-11-19 05:08:54,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:08:54,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:08:54,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:08:54,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:08:54,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:08:54,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:08:54,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:08:54,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:08:54,160 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 05:08:54,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:08:54,160 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 05:08:54,161 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 05:08:54,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:08:54,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:08:54,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:08:54,163 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 05:08:54,308 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:08:54,310 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:08:54,699 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:08:54,717 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:08:54,717 INFO L302 CfgBuilder]: Removed 22 assume(true) statements. [2023-11-19 05:08:54,729 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:08:54 BoogieIcfgContainer [2023-11-19 05:08:54,729 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:08:54,734 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:08:54,735 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:08:54,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:08:54,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:08:53" (1/3) ... [2023-11-19 05:08:54,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4479f541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:08:54, skipping insertion in model container [2023-11-19 05:08:54,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:08:53" (2/3) ... [2023-11-19 05:08:54,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4479f541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:08:54, skipping insertion in model container [2023-11-19 05:08:54,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:08:54" (3/3) ... [2023-11-19 05:08:54,744 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_78-equ_racing-overflow.i [2023-11-19 05:08:54,754 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 05:08:54,764 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:08:54,765 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-19 05:08:54,765 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 05:08:54,900 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 05:08:54,943 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 05:08:54,959 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 217 places, 244 transitions, 495 flow [2023-11-19 05:08:54,963 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 217 places, 244 transitions, 495 flow [2023-11-19 05:08:54,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 217 places, 244 transitions, 495 flow [2023-11-19 05:08:55,120 INFO L124 PetriNetUnfolderBase]: 45/331 cut-off events. [2023-11-19 05:08:55,120 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 05:08:55,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 331 events. 45/331 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1157 event pairs, 0 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 167. Up to 8 conditions per place. [2023-11-19 05:08:55,141 INFO L119 LiptonReduction]: Number of co-enabled transitions 13774 [2023-11-19 05:09:06,983 INFO L134 LiptonReduction]: Checked pairs total: 25305 [2023-11-19 05:09:06,983 INFO L136 LiptonReduction]: Total number of compositions: 265 [2023-11-19 05:09:06,992 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 80 transitions, 167 flow [2023-11-19 05:09:07,091 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 619 states, 564 states have (on average 3.0797872340425534) internal successors, (1737), 618 states have internal predecessors, (1737), 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) [2023-11-19 05:09:07,121 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:09:07,127 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;@64bbe8d2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:09:07,128 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-11-19 05:09:07,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 619 states, 564 states have (on average 3.0797872340425534) internal successors, (1737), 618 states have internal predecessors, (1737), 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) [2023-11-19 05:09:07,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-19 05:09:07,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:09:07,137 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-19 05:09:07,137 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-19 05:09:07,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:09:07,141 INFO L85 PathProgramCache]: Analyzing trace with hash 962, now seen corresponding path program 1 times [2023-11-19 05:09:07,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:09:07,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352304598] [2023-11-19 05:09:07,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:09:07,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:09:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:09:07,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:09:07,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:09:07,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352304598] [2023-11-19 05:09:07,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352304598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:09:07,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:09:07,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 05:09:07,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313562687] [2023-11-19 05:09:07,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:09:07,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:09:07,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:09:07,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:09:07,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:09:07,317 INFO L87 Difference]: Start difference. First operand has 619 states, 564 states have (on average 3.0797872340425534) internal successors, (1737), 618 states have internal predecessors, (1737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2023-11-19 05:09:07,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:09:07,475 INFO L93 Difference]: Finished difference Result 616 states and 1206 transitions. [2023-11-19 05:09:07,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:09:07,481 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2023-11-19 05:09:07,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:09:07,512 INFO L225 Difference]: With dead ends: 616 [2023-11-19 05:09:07,512 INFO L226 Difference]: Without dead ends: 599 [2023-11-19 05:09:07,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:09:07,519 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:09:07,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:09:07,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2023-11-19 05:09:07,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2023-11-19 05:09:07,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 549 states have (on average 2.145719489981785) internal successors, (1178), 598 states have internal predecessors, (1178), 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) [2023-11-19 05:09:07,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1178 transitions. [2023-11-19 05:09:07,631 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1178 transitions. Word has length 1 [2023-11-19 05:09:07,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:09:07,632 INFO L495 AbstractCegarLoop]: Abstraction has 599 states and 1178 transitions. [2023-11-19 05:09:07,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) [2023-11-19 05:09:07,632 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1178 transitions. [2023-11-19 05:09:07,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-19 05:09:07,633 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:09:07,633 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-19 05:09:07,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:09:07,634 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2023-11-19 05:09:07,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:09:07,635 INFO L85 PathProgramCache]: Analyzing trace with hash 970, now seen corresponding path program 1 times [2023-11-19 05:09:07,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:09:07,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537041593] [2023-11-19 05:09:07,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:09:07,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:09:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:09:07,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:09:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:09:07,747 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:09:07,747 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:09:07,749 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 21 remaining) [2023-11-19 05:09:07,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2023-11-19 05:09:07,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2023-11-19 05:09:07,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2023-11-19 05:09:07,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2023-11-19 05:09:07,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2023-11-19 05:09:07,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2023-11-19 05:09:07,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2023-11-19 05:09:07,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2023-11-19 05:09:07,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2023-11-19 05:09:07,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2023-11-19 05:09:07,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2023-11-19 05:09:07,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 21 remaining) [2023-11-19 05:09:07,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2023-11-19 05:09:07,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2023-11-19 05:09:07,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2023-11-19 05:09:07,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2023-11-19 05:09:07,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2023-11-19 05:09:07,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2023-11-19 05:09:07,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2023-11-19 05:09:07,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2023-11-19 05:09:07,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:09:07,764 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 05:09:07,770 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 05:09:07,770 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:09:07,786 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post14 could not be translated [2023-11-19 05:09:07,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:09:07 BasicIcfg [2023-11-19 05:09:07,800 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:09:07,801 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:09:07,802 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:09:07,802 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:09:07,803 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:08:54" (3/4) ... [2023-11-19 05:09:07,803 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 05:09:07,809 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post14 could not be translated [2023-11-19 05:09:07,858 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:09:07,858 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:09:07,861 INFO L158 Benchmark]: Toolchain (without parser) took 14697.22ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 141.1MB in the beginning and 163.2MB in the end (delta: -22.1MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2023-11-19 05:09:07,862 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:09:07,862 INFO L158 Benchmark]: CACSL2BoogieTranslator took 745.84ms. Allocated memory is still 190.8MB. Free memory was 141.1MB in the beginning and 112.1MB in the end (delta: 29.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-19 05:09:07,866 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.79ms. Allocated memory is still 190.8MB. Free memory was 112.1MB in the beginning and 108.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:09:07,866 INFO L158 Benchmark]: Boogie Preprocessor took 66.50ms. Allocated memory is still 190.8MB. Free memory was 108.7MB in the beginning and 106.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:09:07,867 INFO L158 Benchmark]: RCFGBuilder took 666.22ms. Allocated memory is still 190.8MB. Free memory was 106.6MB in the beginning and 85.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 05:09:07,867 INFO L158 Benchmark]: TraceAbstraction took 13065.85ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 84.8MB in the beginning and 165.3MB in the end (delta: -80.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:09:07,868 INFO L158 Benchmark]: Witness Printer took 57.08ms. Allocated memory is still 230.7MB. Free memory was 165.3MB in the beginning and 163.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:09:07,873 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 69.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 745.84ms. Allocated memory is still 190.8MB. Free memory was 141.1MB in the beginning and 112.1MB in the end (delta: 29.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.79ms. Allocated memory is still 190.8MB. Free memory was 112.1MB in the beginning and 108.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.50ms. Allocated memory is still 190.8MB. Free memory was 108.7MB in the beginning and 106.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 666.22ms. Allocated memory is still 190.8MB. Free memory was 106.6MB in the beginning and 85.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 13065.85ms. Allocated memory was 190.8MB in the beginning and 230.7MB in the end (delta: 39.8MB). Free memory was 84.8MB in the beginning and 165.3MB in the end (delta: -80.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.08ms. Allocated memory is still 230.7MB. Free memory was 165.3MB in the beginning and 163.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post14 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.0s, 217 PlacesBefore, 59 PlacesAfterwards, 244 TransitionsBefore, 80 TransitionsAfterwards, 13774 CoEnabledTransitionPairs, 8 FixpointIterations, 91 TrivialSequentialCompositions, 140 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 23 ConcurrentYvCompositions, 6 ChoiceCompositions, 265 TotalNumberOfCompositions, 25305 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13711, independent: 13353, independent conditional: 0, independent unconditional: 13353, dependent: 358, dependent conditional: 0, dependent unconditional: 358, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9303, independent: 9214, independent conditional: 0, independent unconditional: 9214, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9303, independent: 8924, independent conditional: 0, independent unconditional: 8924, dependent: 379, dependent conditional: 0, dependent unconditional: 379, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 379, independent: 290, independent conditional: 0, independent unconditional: 290, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 489, independent: 250, independent conditional: 0, independent unconditional: 250, dependent: 239, dependent conditional: 0, dependent unconditional: 239, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13711, independent: 4139, independent conditional: 0, independent unconditional: 4139, dependent: 269, dependent conditional: 0, dependent unconditional: 269, unknown: 9303, unknown conditional: 0, unknown unconditional: 9303] , Statistics on independence cache: Total cache size (in pairs): 455, Positive cache size: 420, Positive conditional cache size: 0, Positive unconditional cache size: 420, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1026]: integer overflow possible integer overflow possible We found a FailurePath: [L1004] pthread_mutex_t __global_lock = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1006-L1010] struct s { int datum; struct q inside; pthread_mutex_t mutex; } A, B; [L1020] int x = __VERIFIER_nondet_int(); [L1021] struct s *s; [L1022] int *d; [L1023] pthread_mutex_t *m; [L1024] COND TRUE \read(x) [L1025] s = &A [L1026] x++ VAL [A={4:0}, B={5:0}, __global_lock={3:0}, s={4:0}, x=2147483647] - UnprovableResult [Line: 1026]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1029]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1037]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1037]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1035]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1033]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 274 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 12.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 8 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=619occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-19 05:09:07,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd748cd9-4e76-4213-8f45-0b016d0d79b5/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)