./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree-overflow.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba --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-b5237d8 [2022-11-22 02:14:01,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:14:01,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:14:02,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:14:02,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:14:02,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:14:02,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:14:02,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:14:02,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:14:02,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:14:02,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:14:02,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:14:02,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:14:02,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:14:02,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:14:02,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:14:02,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:14:02,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:14:02,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:14:02,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:14:02,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:14:02,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:14:02,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:14:02,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:14:02,060 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:14:02,060 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:14:02,061 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:14:02,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:14:02,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:14:02,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:14:02,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:14:02,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:14:02,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:14:02,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:14:02,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:14:02,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:14:02,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:14:02,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:14:02,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:14:02,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:14:02,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:14:02,076 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:14:02,106 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:14:02,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:14:02,108 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:14:02,108 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:14:02,109 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:14:02,109 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:14:02,110 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:14:02,110 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:14:02,110 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:14:02,111 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:14:02,111 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:14:02,111 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:14:02,112 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:14:02,112 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:14:02,113 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:14:02,113 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:14:02,113 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:14:02,114 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:14:02,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:14:02,115 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:14:02,115 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:14:02,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:14:02,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:14:02,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:14:02,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:14:02,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:14:02,117 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:14:02,117 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:14:02,118 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:14:02,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:14:02,118 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:14:02,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:14:02,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:14:02,119 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:14:02,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:14:02,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:14:02,120 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:14:02,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:14:02,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:14:02,121 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:14:02,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:14:02,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:14:02,122 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:14:02,122 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_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2305533b08f16ed55fe1768852f1afe1d6f847d5ca6bb0bf597caf3ef6acd368 [2022-11-22 02:14:02,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:14:02,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:14:02,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:14:02,484 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:14:02,484 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:14:02,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree-overflow.i [2022-11-22 02:14:06,039 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:14:06,438 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:14:06,443 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b60bf7-ff27-4236-a012-eb70cc358b74/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree-overflow.i [2022-11-22 02:14:06,469 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba/data/0487e3d53/1fb2b0177a7448429660f614dca69d5b/FLAG71cf46fd2 [2022-11-22 02:14:06,643 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba/data/0487e3d53/1fb2b0177a7448429660f614dca69d5b [2022-11-22 02:14:06,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:14:06,655 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:14:06,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:14:06,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:14:06,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:14:06,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:14:06" (1/1) ... [2022-11-22 02:14:06,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58ff5770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:06, skipping insertion in model container [2022-11-22 02:14:06,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:14:06" (1/1) ... [2022-11-22 02:14:06,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:14:06,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:14:07,315 WARN L237 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_04b60bf7-ff27-4236-a012-eb70cc358b74/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree-overflow.i[47038,47051] [2022-11-22 02:14:07,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:14:07,373 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:14:07,431 WARN L237 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_04b60bf7-ff27-4236-a012-eb70cc358b74/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree-overflow.i[47038,47051] [2022-11-22 02:14:07,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:14:07,557 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:14:07,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:07 WrapperNode [2022-11-22 02:14:07,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:14:07,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:14:07,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:14:07,560 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:14:07,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:07" (1/1) ... [2022-11-22 02:14:07,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:07" (1/1) ... [2022-11-22 02:14:07,628 INFO L138 Inliner]: procedures = 271, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 214 [2022-11-22 02:14:07,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:14:07,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:14:07,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:14:07,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:14:07,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:07" (1/1) ... [2022-11-22 02:14:07,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:07" (1/1) ... [2022-11-22 02:14:07,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:07" (1/1) ... [2022-11-22 02:14:07,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:07" (1/1) ... [2022-11-22 02:14:07,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:07" (1/1) ... [2022-11-22 02:14:07,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:07" (1/1) ... [2022-11-22 02:14:07,669 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:07" (1/1) ... [2022-11-22 02:14:07,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:07" (1/1) ... [2022-11-22 02:14:07,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:14:07,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:14:07,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:14:07,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:14:07,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:07" (1/1) ... [2022-11-22 02:14:07,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:14:07,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:14:07,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:14:07,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:14:07,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:14:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:14:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:14:07,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:14:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 02:14:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:14:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-22 02:14:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-22 02:14:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:14:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:14:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:14:07,813 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:14:07,987 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:14:07,990 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:14:08,523 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:14:08,535 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:14:08,536 INFO L300 CfgBuilder]: Removed 22 assume(true) statements. [2022-11-22 02:14:08,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:14:08 BoogieIcfgContainer [2022-11-22 02:14:08,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:14:08,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:14:08,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:14:08,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:14:08,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:14:06" (1/3) ... [2022-11-22 02:14:08,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f99943f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:14:08, skipping insertion in model container [2022-11-22 02:14:08,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:14:07" (2/3) ... [2022-11-22 02:14:08,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f99943f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:14:08, skipping insertion in model container [2022-11-22 02:14:08,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:14:08" (3/3) ... [2022-11-22 02:14:08,551 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_79-equ_racefree-overflow.i [2022-11-22 02:14:08,562 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 02:14:08,575 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:14:08,576 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-22 02:14:08,576 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:14:08,682 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-22 02:14:08,733 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:14:08,769 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 208 places, 233 transitions, 474 flow [2022-11-22 02:14:08,776 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 208 places, 233 transitions, 474 flow [2022-11-22 02:14:08,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 208 places, 233 transitions, 474 flow [2022-11-22 02:14:08,972 INFO L130 PetriNetUnfolder]: 42/312 cut-off events. [2022-11-22 02:14:08,972 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-22 02:14:08,988 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 1046 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. [2022-11-22 02:14:08,998 INFO L119 LiptonReduction]: Number of co-enabled transitions 11570 [2022-11-22 02:14:24,453 INFO L134 LiptonReduction]: Checked pairs total: 26634 [2022-11-22 02:14:24,454 INFO L136 LiptonReduction]: Total number of compositions: 249 [2022-11-22 02:14:24,467 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 81 transitions, 170 flow [2022-11-22 02:14:24,549 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 647 states, 592 states have (on average 3.045608108108108) internal successors, (1803), 646 states have internal predecessors, (1803), 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) [2022-11-22 02:14:24,573 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:14:24,580 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;@6dec27ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:14:24,580 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-22 02:14:24,586 INFO L276 IsEmpty]: Start isEmpty. Operand has 647 states, 592 states have (on average 3.045608108108108) internal successors, (1803), 646 states have internal predecessors, (1803), 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) [2022-11-22 02:14:24,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 02:14:24,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:14:24,593 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 02:14:24,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-22 02:14:24,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:14:24,600 INFO L85 PathProgramCache]: Analyzing trace with hash 915, now seen corresponding path program 1 times [2022-11-22 02:14:24,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:14:24,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151954515] [2022-11-22 02:14:24,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:14:24,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:14:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:14:24,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:14:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:14:24,910 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:14:24,914 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:14:24,916 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 21 remaining) [2022-11-22 02:14:24,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2022-11-22 02:14:24,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2022-11-22 02:14:24,920 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2022-11-22 02:14:24,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2022-11-22 02:14:24,921 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2022-11-22 02:14:24,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2022-11-22 02:14:24,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2022-11-22 02:14:24,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2022-11-22 02:14:24,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2022-11-22 02:14:24,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2022-11-22 02:14:24,924 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2022-11-22 02:14:24,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 21 remaining) [2022-11-22 02:14:24,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2022-11-22 02:14:24,925 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2022-11-22 02:14:24,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2022-11-22 02:14:24,926 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2022-11-22 02:14:24,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2022-11-22 02:14:24,927 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2022-11-22 02:14:24,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2022-11-22 02:14:24,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2022-11-22 02:14:24,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:14:24,934 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 02:14:24,944 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 02:14:24,945 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:14:24,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:14:24 BasicIcfg [2022-11-22 02:14:24,983 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:14:24,984 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:14:24,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:14:24,985 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:14:24,985 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:14:08" (3/4) ... [2022-11-22 02:14:24,987 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 02:14:25,034 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:14:25,034 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:14:25,040 INFO L158 Benchmark]: Toolchain (without parser) took 18384.86ms. Allocated memory was 146.8MB in the beginning and 224.4MB in the end (delta: 77.6MB). Free memory was 97.0MB in the beginning and 158.3MB in the end (delta: -61.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 02:14:25,041 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 146.8MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:14:25,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 895.10ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 97.0MB in the beginning and 150.3MB in the end (delta: -53.2MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2022-11-22 02:14:25,043 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.07ms. Allocated memory is still 186.6MB. Free memory was 150.3MB in the beginning and 147.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:14:25,044 INFO L158 Benchmark]: Boogie Preprocessor took 46.14ms. Allocated memory is still 186.6MB. Free memory was 147.1MB in the beginning and 145.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:14:25,044 INFO L158 Benchmark]: RCFGBuilder took 861.86ms. Allocated memory is still 186.6MB. Free memory was 144.9MB in the beginning and 124.0MB in the end (delta: 20.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 02:14:25,044 INFO L158 Benchmark]: TraceAbstraction took 16441.53ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 123.0MB in the beginning and 160.4MB in the end (delta: -37.4MB). Peak memory consumption was 359.7kB. Max. memory is 16.1GB. [2022-11-22 02:14:25,045 INFO L158 Benchmark]: Witness Printer took 54.31ms. Allocated memory is still 224.4MB. Free memory was 160.4MB in the beginning and 158.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:14:25,047 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 146.8MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 895.10ms. Allocated memory was 146.8MB in the beginning and 186.6MB in the end (delta: 39.8MB). Free memory was 97.0MB in the beginning and 150.3MB in the end (delta: -53.2MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.07ms. Allocated memory is still 186.6MB. Free memory was 150.3MB in the beginning and 147.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.14ms. Allocated memory is still 186.6MB. Free memory was 147.1MB in the beginning and 145.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 861.86ms. Allocated memory is still 186.6MB. Free memory was 144.9MB in the beginning and 124.0MB in the end (delta: 20.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 16441.53ms. Allocated memory was 186.6MB in the beginning and 224.4MB in the end (delta: 37.7MB). Free memory was 123.0MB in the beginning and 160.4MB in the end (delta: -37.4MB). Peak memory consumption was 359.7kB. Max. memory is 16.1GB. * Witness Printer took 54.31ms. Allocated memory is still 224.4MB. Free memory was 160.4MB in the beginning and 158.3MB 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: 15.7s, 208 PlacesBefore, 60 PlacesAfterwards, 233 TransitionsBefore, 81 TransitionsAfterwards, 11570 CoEnabledTransitionPairs, 9 FixpointIterations, 101 TrivialSequentialCompositions, 121 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 18 ConcurrentYvCompositions, 4 ChoiceCompositions, 249 TotalNumberOfCompositions, 26634 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12698, independent: 12241, independent conditional: 0, independent unconditional: 12241, dependent: 457, dependent conditional: 0, dependent unconditional: 457, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7360, independent: 7273, independent conditional: 0, independent unconditional: 7273, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7360, independent: 7055, independent conditional: 0, independent unconditional: 7055, dependent: 305, dependent conditional: 0, dependent unconditional: 305, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 305, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 496, independent: 241, independent conditional: 0, independent unconditional: 241, dependent: 256, dependent conditional: 0, dependent unconditional: 256, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 12698, independent: 4968, independent conditional: 0, independent unconditional: 4968, dependent: 370, dependent conditional: 0, dependent unconditional: 370, unknown: 7360, unknown conditional: 0, unknown unconditional: 7360] , Statistics on independence cache: Total cache size (in pairs): 435, Positive cache size: 397, Positive conditional cache size: 0, Positive unconditional cache size: 397, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, 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 [__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: 16.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=647occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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! [2022-11-22 02:14:25,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b60bf7-ff27-4236-a012-eb70cc358b74/bin/utaipan-g80aRyZoba/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)