./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --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 2305533b08f16ed55fe1768852f1afe1d6f847d5ca6bb0bf597caf3ef6acd368 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:13:26,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:13:26,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:13:26,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:13:26,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:13:26,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:13:26,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:13:26,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:13:26,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:13:26,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:13:26,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:13:26,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:13:26,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:13:26,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:13:26,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:13:26,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:13:26,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:13:26,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:13:26,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:13:26,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:13:26,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:13:26,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:13:26,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:13:26,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:13:26,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:13:26,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:13:26,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:13:26,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:13:26,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:13:26,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:13:26,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:13:26,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:13:26,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:13:26,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:13:26,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:13:26,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:13:26,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:13:26,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:13:26,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:13:26,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:13:26,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:13:26,426 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 02:13:26,467 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:13:26,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:13:26,468 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:13:26,468 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:13:26,469 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:13:26,469 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:13:26,469 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:13:26,470 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:13:26,470 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:13:26,470 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:13:26,471 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:13:26,471 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:13:26,472 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:13:26,472 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:13:26,472 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:13:26,472 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:13:26,472 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:13:26,473 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:13:26,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:13:26,473 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:13:26,474 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:13:26,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:13:26,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:13:26,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:13:26,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:13:26,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:13:26,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:13:26,475 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 02:13:26,475 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:13:26,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:13:26,475 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:13:26,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:13:26,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:13:26,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:13:26,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:13:26,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:13:26,477 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:13:26,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:13:26,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:13:26,479 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:13:26,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:13:26,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:13:26,480 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:13:26,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2305533b08f16ed55fe1768852f1afe1d6f847d5ca6bb0bf597caf3ef6acd368 [2022-11-03 02:13:26,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:13:26,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:13:26,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:13:26,820 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:13:26,821 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:13:26,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2022-11-03 02:13:26,895 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI/data/dd6f5e3f3/280da94b713c45599e13d70cffdce1b2/FLAGbece87fb1 [2022-11-03 02:13:27,470 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:13:27,471 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2022-11-03 02:13:27,493 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI/data/dd6f5e3f3/280da94b713c45599e13d70cffdce1b2/FLAGbece87fb1 [2022-11-03 02:13:27,899 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI/data/dd6f5e3f3/280da94b713c45599e13d70cffdce1b2 [2022-11-03 02:13:27,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:13:27,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:13:27,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:13:27,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:13:27,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:13:27,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:13:27" (1/1) ... [2022-11-03 02:13:27,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c137c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:27, skipping insertion in model container [2022-11-03 02:13:27,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:13:27" (1/1) ... [2022-11-03 02:13:27,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:13:27,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:13:28,507 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i[47038,47051] [2022-11-03 02:13:28,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:13:28,560 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:13:28,614 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i[47038,47051] [2022-11-03 02:13:28,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:13:28,704 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:13:28,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:28 WrapperNode [2022-11-03 02:13:28,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:13:28,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:13:28,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:13:28,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:13:28,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:28" (1/1) ... [2022-11-03 02:13:28,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:28" (1/1) ... [2022-11-03 02:13:28,805 INFO L138 Inliner]: procedures = 271, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 214 [2022-11-03 02:13:28,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:13:28,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:13:28,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:13:28,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:13:28,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:28" (1/1) ... [2022-11-03 02:13:28,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:28" (1/1) ... [2022-11-03 02:13:28,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:28" (1/1) ... [2022-11-03 02:13:28,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:28" (1/1) ... [2022-11-03 02:13:28,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:28" (1/1) ... [2022-11-03 02:13:28,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:28" (1/1) ... [2022-11-03 02:13:28,864 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:28" (1/1) ... [2022-11-03 02:13:28,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:28" (1/1) ... [2022-11-03 02:13:28,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:13:28,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:13:28,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:13:28,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:13:28,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:28" (1/1) ... [2022-11-03 02:13:28,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:13:28,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:13:28,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:13:28,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:13:28,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:13:29,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:13:29,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:13:29,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:13:29,000 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-03 02:13:29,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:13:29,000 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-03 02:13:29,001 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-03 02:13:29,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:13:29,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:13:29,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:13:29,003 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:13:29,200 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:13:29,202 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:13:29,660 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:13:29,672 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:13:29,673 INFO L300 CfgBuilder]: Removed 22 assume(true) statements. [2022-11-03 02:13:29,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:13:29 BoogieIcfgContainer [2022-11-03 02:13:29,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:13:29,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:13:29,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:13:29,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:13:29,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:13:27" (1/3) ... [2022-11-03 02:13:29,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510391ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:13:29, skipping insertion in model container [2022-11-03 02:13:29,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:13:28" (2/3) ... [2022-11-03 02:13:29,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510391ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:13:29, skipping insertion in model container [2022-11-03 02:13:29,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:13:29" (3/3) ... [2022-11-03 02:13:29,686 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_79-equ_racefree.i [2022-11-03 02:13:29,694 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:13:29,707 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:13:29,708 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-03 02:13:29,708 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:13:29,811 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-03 02:13:29,870 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:13:29,891 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 208 places, 233 transitions, 474 flow [2022-11-03 02:13:29,894 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 208 places, 233 transitions, 474 flow [2022-11-03 02:13:29,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 208 places, 233 transitions, 474 flow [2022-11-03 02:13:30,075 INFO L130 PetriNetUnfolder]: 42/312 cut-off events. [2022-11-03 02:13:30,076 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-03 02:13:30,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 312 events. 42/312 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1052 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 153. Up to 8 conditions per place. [2022-11-03 02:13:30,094 INFO L118 LiptonReduction]: Number of co-enabled transitions 11570 [2022-11-03 02:13:39,663 INFO L133 LiptonReduction]: Checked pairs total: 21724 [2022-11-03 02:13:39,663 INFO L135 LiptonReduction]: Total number of compositions: 231 [2022-11-03 02:13:39,677 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 82 transitions, 172 flow [2022-11-03 02:13:39,754 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 641 states, 586 states have (on average 3.0938566552901023) internal successors, (1813), 640 states have internal predecessors, (1813), 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) [2022-11-03 02:13:39,780 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:13:39,788 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=LoopsAndPotentialCycles, 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;@2668913a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:13:39,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-03 02:13:39,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 641 states, 586 states have (on average 3.0938566552901023) internal successors, (1813), 640 states have internal predecessors, (1813), 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) [2022-11-03 02:13:39,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-03 02:13:39,800 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:13:39,801 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-03 02:13:39,802 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-03 02:13:39,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:13:39,809 INFO L85 PathProgramCache]: Analyzing trace with hash 900, now seen corresponding path program 1 times [2022-11-03 02:13:39,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:13:39,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345964847] [2022-11-03 02:13:39,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:13:39,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:13:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:13:39,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:13:39,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:13:39,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345964847] [2022-11-03 02:13:39,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345964847] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:13:39,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:13:39,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-03 02:13:39,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824096513] [2022-11-03 02:13:39,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:13:39,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:13:39,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:13:39,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:13:39,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:13:39,999 INFO L87 Difference]: Start difference. First operand has 641 states, 586 states have (on average 3.0938566552901023) internal successors, (1813), 640 states have internal predecessors, (1813), 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) [2022-11-03 02:13:40,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:13:40,140 INFO L93 Difference]: Finished difference Result 638 states and 1249 transitions. [2022-11-03 02:13:40,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:13:40,142 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 [2022-11-03 02:13:40,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:13:40,169 INFO L225 Difference]: With dead ends: 638 [2022-11-03 02:13:40,170 INFO L226 Difference]: Without dead ends: 620 [2022-11-03 02:13:40,171 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 [2022-11-03 02:13:40,175 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:13:40,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:13:40,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2022-11-03 02:13:40,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 620. [2022-11-03 02:13:40,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 570 states have (on average 2.1403508771929824) internal successors, (1220), 619 states have internal predecessors, (1220), 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) [2022-11-03 02:13:40,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 1220 transitions. [2022-11-03 02:13:40,269 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 1220 transitions. Word has length 1 [2022-11-03 02:13:40,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:13:40,269 INFO L495 AbstractCegarLoop]: Abstraction has 620 states and 1220 transitions. [2022-11-03 02:13:40,269 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) [2022-11-03 02:13:40,269 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 1220 transitions. [2022-11-03 02:13:40,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-03 02:13:40,270 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:13:40,270 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-03 02:13:40,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:13:40,270 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-03 02:13:40,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:13:40,271 INFO L85 PathProgramCache]: Analyzing trace with hash 902, now seen corresponding path program 1 times [2022-11-03 02:13:40,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:13:40,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738375999] [2022-11-03 02:13:40,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:13:40,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:13:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:13:40,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:13:40,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:13:40,349 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:13:40,350 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:13:40,351 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 21 remaining) [2022-11-03 02:13:40,353 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2022-11-03 02:13:40,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2022-11-03 02:13:40,354 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2022-11-03 02:13:40,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2022-11-03 02:13:40,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2022-11-03 02:13:40,355 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2022-11-03 02:13:40,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2022-11-03 02:13:40,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2022-11-03 02:13:40,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2022-11-03 02:13:40,356 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2022-11-03 02:13:40,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2022-11-03 02:13:40,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 21 remaining) [2022-11-03 02:13:40,357 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2022-11-03 02:13:40,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2022-11-03 02:13:40,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2022-11-03 02:13:40,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2022-11-03 02:13:40,358 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2022-11-03 02:13:40,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2022-11-03 02:13:40,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2022-11-03 02:13:40,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2022-11-03 02:13:40,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:13:40,362 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-03 02:13:40,368 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 02:13:40,368 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:13:40,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:13:40 BasicIcfg [2022-11-03 02:13:40,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:13:40,384 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:13:40,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:13:40,385 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:13:40,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:13:29" (3/4) ... [2022-11-03 02:13:40,387 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-03 02:13:40,418 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:13:40,418 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:13:40,419 INFO L158 Benchmark]: Toolchain (without parser) took 12513.58ms. Allocated memory was 100.7MB in the beginning and 153.1MB in the end (delta: 52.4MB). Free memory was 59.6MB in the beginning and 51.1MB in the end (delta: 8.5MB). Peak memory consumption was 61.2MB. Max. memory is 16.1GB. [2022-11-03 02:13:40,419 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 100.7MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:13:40,420 INFO L158 Benchmark]: CACSL2BoogieTranslator took 798.48ms. Allocated memory is still 100.7MB. Free memory was 59.3MB in the beginning and 56.7MB in the end (delta: 2.6MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2022-11-03 02:13:40,420 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.78ms. Allocated memory is still 100.7MB. Free memory was 56.7MB in the beginning and 54.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:13:40,421 INFO L158 Benchmark]: Boogie Preprocessor took 72.48ms. Allocated memory is still 100.7MB. Free memory was 54.0MB in the beginning and 51.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:13:40,421 INFO L158 Benchmark]: RCFGBuilder took 794.05ms. Allocated memory is still 100.7MB. Free memory was 51.9MB in the beginning and 66.3MB in the end (delta: -14.4MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2022-11-03 02:13:40,421 INFO L158 Benchmark]: TraceAbstraction took 10706.08ms. Allocated memory was 100.7MB in the beginning and 153.1MB in the end (delta: 52.4MB). Free memory was 65.7MB in the beginning and 53.2MB in the end (delta: 12.6MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2022-11-03 02:13:40,422 INFO L158 Benchmark]: Witness Printer took 33.86ms. Allocated memory is still 153.1MB. Free memory was 53.2MB in the beginning and 51.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:13:40,424 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 100.7MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 798.48ms. Allocated memory is still 100.7MB. Free memory was 59.3MB in the beginning and 56.7MB in the end (delta: 2.6MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.78ms. Allocated memory is still 100.7MB. Free memory was 56.7MB in the beginning and 54.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.48ms. Allocated memory is still 100.7MB. Free memory was 54.0MB in the beginning and 51.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 794.05ms. Allocated memory is still 100.7MB. Free memory was 51.9MB in the beginning and 66.3MB in the end (delta: -14.4MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10706.08ms. Allocated memory was 100.7MB in the beginning and 153.1MB in the end (delta: 52.4MB). Free memory was 65.7MB in the beginning and 53.2MB in the end (delta: 12.6MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. * Witness Printer took 33.86ms. Allocated memory is still 153.1MB. Free memory was 53.2MB in the beginning and 51.1MB 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.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.8s, 208 PlacesBefore, 60 PlacesAfterwards, 233 TransitionsBefore, 82 TransitionsAfterwards, 11570 CoEnabledTransitionPairs, 7 FixpointIterations, 87 TrivialSequentialCompositions, 118 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 231 TotalNumberOfCompositions, 21724 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10198, positive: 9868, positive conditional: 0, positive unconditional: 9868, negative: 330, negative conditional: 0, negative unconditional: 330, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7384, positive: 7304, positive conditional: 0, positive unconditional: 7304, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7384, positive: 7074, positive conditional: 0, positive unconditional: 7074, negative: 310, negative conditional: 0, negative unconditional: 310, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 310, positive: 230, positive conditional: 0, positive unconditional: 230, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 400, positive: 195, positive conditional: 0, positive unconditional: 195, negative: 204, negative conditional: 0, negative unconditional: 204, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10198, positive: 2564, positive conditional: 0, positive unconditional: 2564, negative: 250, negative conditional: 0, negative unconditional: 250, unknown: 7384, unknown conditional: 0, unknown unconditional: 7384] , Statistics on independence cache: Total cache size (in pairs): 307, Positive cache size: 264, Positive conditional cache size: 0, Positive unconditional cache size: 264, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43 - 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 [__global_lock={3:0}, A={4:0}, B={5:0}, s={4:0}, x=2147483647, x++=2147483647] - 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: 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: 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: 1035]: 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: 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: 1033]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) 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, 260 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 10.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 47 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=641occurred 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, 0.0s 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! [2022-11-03 02:13:40,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c58e4684-49ff-4c74-993c-05fdb0dc8d82/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)