./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c --- 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-8393723 [2022-11-19 07:33:48,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:33:48,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:33:48,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:33:48,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:33:48,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:33:48,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:33:48,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:33:48,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:33:48,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:33:48,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:33:48,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:33:48,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:33:48,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:33:48,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:33:48,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:33:48,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:33:48,931 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:33:48,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:33:48,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:33:48,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:33:48,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:33:48,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:33:48,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:33:48,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:33:48,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:33:48,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:33:48,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:33:48,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:33:48,962 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:33:48,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:33:48,964 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:33:48,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:33:48,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:33:48,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:33:48,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:33:48,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:33:48,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:33:48,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:33:48,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:33:48,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:33:48,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:33:49,042 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:33:49,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:33:49,045 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:33:49,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:33:49,046 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:33:49,046 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:33:49,047 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:33:49,047 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:33:49,047 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:33:49,047 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:33:49,049 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:33:49,049 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:33:49,049 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:33:49,050 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:33:49,050 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:33:49,050 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:33:49,051 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:33:49,051 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:33:49,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:33:49,052 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:33:49,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:33:49,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:33:49,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:33:49,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:33:49,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:33:49,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:33:49,056 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:33:49,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:33:49,056 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:33:49,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:33:49,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:33:49,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:33:49,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:33:49,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:33:49,058 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:33:49,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:33:49,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:33:49,059 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:33:49,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:33:49,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:33:49,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:33:49,060 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_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c [2022-11-19 07:33:49,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:33:49,487 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:33:49,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:33:49,492 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:33:49,493 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:33:49,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-19 07:33:49,582 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS/data/108f019f7/db2ffe6791dc49109913ed5a82330f33/FLAG5eeb8df0a [2022-11-19 07:33:50,220 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:33:50,221 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-19 07:33:50,234 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS/data/108f019f7/db2ffe6791dc49109913ed5a82330f33/FLAG5eeb8df0a [2022-11-19 07:33:50,469 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS/data/108f019f7/db2ffe6791dc49109913ed5a82330f33 [2022-11-19 07:33:50,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:33:50,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:33:50,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:33:50,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:33:50,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:33:50,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:50" (1/1) ... [2022-11-19 07:33:50,482 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b299466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:50, skipping insertion in model container [2022-11-19 07:33:50,483 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:33:50" (1/1) ... [2022-11-19 07:33:50,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:33:50,533 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:33:50,779 WARN L234 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_72c158a5-23a2-4800-a91e-3a90988eca5b/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-11-19 07:33:50,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:33:50,963 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:33:50,984 WARN L234 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_72c158a5-23a2-4800-a91e-3a90988eca5b/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-11-19 07:33:51,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:33:51,106 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:33:51,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:51 WrapperNode [2022-11-19 07:33:51,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:33:51,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:33:51,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:33:51,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:33:51,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:51" (1/1) ... [2022-11-19 07:33:51,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:51" (1/1) ... [2022-11-19 07:33:51,189 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-11-19 07:33:51,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:33:51,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:33:51,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:33:51,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:33:51,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:51" (1/1) ... [2022-11-19 07:33:51,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:51" (1/1) ... [2022-11-19 07:33:51,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:51" (1/1) ... [2022-11-19 07:33:51,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:51" (1/1) ... [2022-11-19 07:33:51,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:51" (1/1) ... [2022-11-19 07:33:51,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:51" (1/1) ... [2022-11-19 07:33:51,244 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:51" (1/1) ... [2022-11-19 07:33:51,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:51" (1/1) ... [2022-11-19 07:33:51,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:33:51,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:33:51,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:33:51,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:33:51,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:51" (1/1) ... [2022-11-19 07:33:51,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:33:51,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:33:51,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:33:51,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:33:51,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:33:51,372 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-19 07:33:51,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:33:51,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:33:51,372 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-19 07:33:51,372 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-19 07:33:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:33:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:33:51,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:33:51,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:33:51,375 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 07:33:51,529 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:33:51,532 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:33:51,816 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:33:51,825 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:33:51,839 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:33:51,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:51 BoogieIcfgContainer [2022-11-19 07:33:51,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:33:51,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:33:51,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:33:51,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:33:51,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:33:50" (1/3) ... [2022-11-19 07:33:51,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6155ddf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:51, skipping insertion in model container [2022-11-19 07:33:51,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:33:51" (2/3) ... [2022-11-19 07:33:51,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6155ddf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:33:51, skipping insertion in model container [2022-11-19 07:33:51,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:51" (3/3) ... [2022-11-19 07:33:51,857 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-19 07:33:51,868 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 07:33:51,882 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:33:51,883 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:33:51,883 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 07:33:51,991 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-19 07:33:52,043 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 07:33:52,068 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 78 transitions, 161 flow [2022-11-19 07:33:52,078 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 78 transitions, 161 flow [2022-11-19 07:33:52,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 161 flow [2022-11-19 07:33:52,164 INFO L130 PetriNetUnfolder]: 2/77 cut-off events. [2022-11-19 07:33:52,165 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-19 07:33:52,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2022-11-19 07:33:52,173 INFO L119 LiptonReduction]: Number of co-enabled transitions 620 [2022-11-19 07:33:56,530 INFO L134 LiptonReduction]: Checked pairs total: 1634 [2022-11-19 07:33:56,531 INFO L136 LiptonReduction]: Total number of compositions: 69 [2022-11-19 07:33:56,547 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 20 transitions, 45 flow [2022-11-19 07:33:56,585 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 56 states, 55 states have (on average 1.8363636363636364) internal successors, (101), 55 states have internal predecessors, (101), 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) [2022-11-19 07:33:56,614 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:33:56,624 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;@6dcbee65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:33:56,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 07:33:56,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 55 states have (on average 1.8363636363636364) internal successors, (101), 55 states have internal predecessors, (101), 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) [2022-11-19 07:33:56,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 07:33:56,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:33:56,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 07:33:56,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-19 07:33:56,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:33:56,647 INFO L85 PathProgramCache]: Analyzing trace with hash -518910054, now seen corresponding path program 1 times [2022-11-19 07:33:56,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:33:56,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131339189] [2022-11-19 07:33:56,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:33:56,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:33:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:33:56,837 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:33:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:33:56,938 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:33:56,940 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:33:56,942 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-19 07:33:56,944 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-11-19 07:33:56,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:33:56,949 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 07:33:56,957 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 07:33:56,957 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:33:56,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:33:56 BasicIcfg [2022-11-19 07:33:56,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:33:56,988 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:33:56,989 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:33:56,989 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:33:56,989 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:33:51" (3/4) ... [2022-11-19 07:33:56,992 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-19 07:33:57,056 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:33:57,056 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:33:57,058 INFO L158 Benchmark]: Toolchain (without parser) took 6584.11ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 83.5MB in the beginning and 82.7MB in the end (delta: 819.7kB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2022-11-19 07:33:57,059 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:33:57,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 632.25ms. Allocated memory is still 104.9MB. Free memory was 83.2MB in the beginning and 72.7MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:33:57,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.31ms. Allocated memory is still 104.9MB. Free memory was 72.7MB in the beginning and 70.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:33:57,061 INFO L158 Benchmark]: Boogie Preprocessor took 56.57ms. Allocated memory is still 104.9MB. Free memory was 70.7MB in the beginning and 69.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:33:57,061 INFO L158 Benchmark]: RCFGBuilder took 593.54ms. Allocated memory is still 104.9MB. Free memory was 69.2MB in the beginning and 56.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 07:33:57,062 INFO L158 Benchmark]: TraceAbstraction took 5139.94ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 55.6MB in the beginning and 84.8MB in the end (delta: -29.1MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2022-11-19 07:33:57,063 INFO L158 Benchmark]: Witness Printer took 68.14ms. Allocated memory is still 134.2MB. Free memory was 84.8MB in the beginning and 82.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:33:57,067 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 104.9MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 632.25ms. Allocated memory is still 104.9MB. Free memory was 83.2MB in the beginning and 72.7MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.31ms. Allocated memory is still 104.9MB. Free memory was 72.7MB in the beginning and 70.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.57ms. Allocated memory is still 104.9MB. Free memory was 70.7MB in the beginning and 69.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 593.54ms. Allocated memory is still 104.9MB. Free memory was 69.2MB in the beginning and 56.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5139.94ms. Allocated memory was 104.9MB in the beginning and 134.2MB in the end (delta: 29.4MB). Free memory was 55.6MB in the beginning and 84.8MB in the end (delta: -29.1MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. * Witness Printer took 68.14ms. Allocated memory is still 134.2MB. Free memory was 84.8MB in the beginning and 82.7MB 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: 4.5s, 80 PlacesBefore, 22 PlacesAfterwards, 78 TransitionsBefore, 20 TransitionsAfterwards, 620 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 0 ChoiceCompositions, 69 TotalNumberOfCompositions, 1634 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 811, independent: 667, independent conditional: 0, independent unconditional: 667, dependent: 144, dependent conditional: 0, dependent unconditional: 144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 434, independent: 391, independent conditional: 0, independent unconditional: 391, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 434, independent: 368, independent conditional: 0, independent unconditional: 368, dependent: 66, dependent conditional: 0, dependent unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 66, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 43, dependent conditional: 0, dependent unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 262, independent: 105, independent conditional: 0, independent unconditional: 105, dependent: 156, dependent conditional: 0, dependent unconditional: 156, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 811, independent: 276, independent conditional: 0, independent unconditional: 276, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 434, unknown conditional: 0, unknown unconditional: 434] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 42, Positive conditional cache size: 0, Positive unconditional cache size: 42, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L683] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L684] 0 pthread_mutex_t B = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L682] 0 int g = 42; [L694] 0 int r = __VERIFIER_nondet_int(); [L695] 0 int t; [L696] 0 pthread_t id; [L697] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, B={4:0}, g=42, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, r=0] [L700] COND FALSE 0 !(\read(r)) [L705] 0 t = g [L706] CALL 0 __VERIFIER_assert(t == 17) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, A={3:0}, arg={0:0}, B={4:0}, cond=0, g=42] - UnprovableResult [Line: 697]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 89 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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, 6 NumberOfCodeBlocks, 6 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! [2022-11-19 07:33:57,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72c158a5-23a2-4800-a91e-3a90988eca5b/bin/utaipan-I9t0OCRTmS/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