./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 38b53e6a 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_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur/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_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur --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-38b53e6 [2022-11-25 22:28:31,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:28:31,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:28:31,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:28:31,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:28:31,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:28:31,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:28:31,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:28:31,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:28:31,064 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:28:31,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:28:31,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:28:31,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:28:31,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:28:31,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:28:31,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:28:31,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:28:31,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:28:31,076 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:28:31,078 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:28:31,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:28:31,088 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:28:31,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:28:31,090 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:28:31,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:28:31,093 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:28:31,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:28:31,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:28:31,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:28:31,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:28:31,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:28:31,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:28:31,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:28:31,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:28:31,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:28:31,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:28:31,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:28:31,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:28:31,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:28:31,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:28:31,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:28:31,118 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:28:31,151 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:28:31,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:28:31,152 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:28:31,152 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:28:31,153 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:28:31,154 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:28:31,154 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:28:31,154 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:28:31,154 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:28:31,154 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:28:31,156 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:28:31,156 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:28:31,156 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:28:31,157 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:28:31,157 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:28:31,157 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:28:31,157 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:28:31,157 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:28:31,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:28:31,158 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:28:31,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:28:31,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:28:31,159 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:28:31,159 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:28:31,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:28:31,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:28:31,160 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:28:31,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:28:31,160 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:28:31,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:28:31,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:28:31,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:28:31,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:28:31,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:28:31,162 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:28:31,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:28:31,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:28:31,163 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:28:31,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:28:31,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:28:31,170 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:28:31,170 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_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa09ef2a9611ca17b7987ae6667bf9c5dfecc9a3d2f86327d9d054dda20e42c [2022-11-25 22:28:31,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:28:31,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:28:31,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:28:31,535 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:28:31,536 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:28:31,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-25 22:28:34,595 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:28:34,855 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:28:34,856 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-25 22:28:34,869 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur/data/de23d794e/72172e60afc44dbb843a26f7904abf62/FLAG6f3bdfa2a [2022-11-25 22:28:34,898 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur/data/de23d794e/72172e60afc44dbb843a26f7904abf62 [2022-11-25 22:28:34,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:28:34,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:28:34,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:28:34,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:28:34,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:28:34,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:28:34" (1/1) ... [2022-11-25 22:28:34,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42242c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:34, skipping insertion in model container [2022-11-25 22:28:34,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:28:34" (1/1) ... [2022-11-25 22:28:34,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:28:34,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:28:35,183 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_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-11-25 22:28:35,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:28:35,415 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:28:35,433 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_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/sv-benchmarks/c/goblint-regression/36-apron_17-traces-rpb-litmus_unknown_1_pos.i[1098,1111] [2022-11-25 22:28:35,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:28:35,536 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:28:35,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:35 WrapperNode [2022-11-25 22:28:35,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:28:35,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:28:35,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:28:35,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:28:35,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:35" (1/1) ... [2022-11-25 22:28:35,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:35" (1/1) ... [2022-11-25 22:28:35,608 INFO L138 Inliner]: procedures = 163, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-11-25 22:28:35,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:28:35,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:28:35,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:28:35,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:28:35,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:35" (1/1) ... [2022-11-25 22:28:35,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:35" (1/1) ... [2022-11-25 22:28:35,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:35" (1/1) ... [2022-11-25 22:28:35,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:35" (1/1) ... [2022-11-25 22:28:35,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:35" (1/1) ... [2022-11-25 22:28:35,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:35" (1/1) ... [2022-11-25 22:28:35,654 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:35" (1/1) ... [2022-11-25 22:28:35,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:35" (1/1) ... [2022-11-25 22:28:35,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:28:35,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:28:35,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:28:35,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:28:35,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:35" (1/1) ... [2022-11-25 22:28:35,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:28:35,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:28:35,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:28:35,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:28:35,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:28:35,745 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 22:28:35,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:28:35,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:28:35,745 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 22:28:35,746 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 22:28:35,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:28:35,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:28:35,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:28:35,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:28:35,748 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 22:28:35,962 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:28:35,964 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:28:36,144 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:28:36,151 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:28:36,151 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:28:36,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:28:36 BoogieIcfgContainer [2022-11-25 22:28:36,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:28:36,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:28:36,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:28:36,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:28:36,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:28:34" (1/3) ... [2022-11-25 22:28:36,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47fa7c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:28:36, skipping insertion in model container [2022-11-25 22:28:36,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:28:35" (2/3) ... [2022-11-25 22:28:36,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47fa7c59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:28:36, skipping insertion in model container [2022-11-25 22:28:36,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:28:36" (3/3) ... [2022-11-25 22:28:36,163 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_17-traces-rpb-litmus_unknown_1_pos.i [2022-11-25 22:28:36,173 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 22:28:36,184 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:28:36,185 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:28:36,185 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 22:28:36,264 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 22:28:36,300 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 22:28:36,319 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 78 transitions, 161 flow [2022-11-25 22:28:36,328 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 78 transitions, 161 flow [2022-11-25 22:28:36,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 78 transitions, 161 flow [2022-11-25 22:28:36,414 INFO L130 PetriNetUnfolder]: 2/77 cut-off events. [2022-11-25 22:28:36,414 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 22:28:36,421 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. [2022-11-25 22:28:36,424 INFO L119 LiptonReduction]: Number of co-enabled transitions 620 [2022-11-25 22:28:40,826 INFO L134 LiptonReduction]: Checked pairs total: 1734 [2022-11-25 22:28:40,827 INFO L136 LiptonReduction]: Total number of compositions: 66 [2022-11-25 22:28:40,837 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 19 transitions, 43 flow [2022-11-25 22:28:40,855 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) [2022-11-25 22:28:40,876 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:28:40,886 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;@3a21e9e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:28:40,887 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:28:40,889 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) [2022-11-25 22:28:40,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:28:40,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:40,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 22:28:40,923 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-25 22:28:40,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:40,930 INFO L85 PathProgramCache]: Analyzing trace with hash -604710029, now seen corresponding path program 1 times [2022-11-25 22:28:40,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:40,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917250354] [2022-11-25 22:28:40,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:40,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:28:41,115 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:28:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:28:41,166 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:28:41,168 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:28:41,169 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-25 22:28:41,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2022-11-25 22:28:41,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:28:41,176 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 22:28:41,183 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 22:28:41,184 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:28:41,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:28:41 BasicIcfg [2022-11-25 22:28:41,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:28:41,208 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:28:41,208 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:28:41,209 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:28:41,209 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:28:36" (3/4) ... [2022-11-25 22:28:41,212 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 22:28:41,256 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:28:41,257 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:28:41,258 INFO L158 Benchmark]: Toolchain (without parser) took 6351.74ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 96.3MB in the beginning and 101.5MB in the end (delta: -5.2MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2022-11-25 22:28:41,259 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:28:41,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 623.86ms. Allocated memory is still 134.2MB. Free memory was 95.9MB in the beginning and 76.7MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 22:28:41,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.32ms. Allocated memory is still 134.2MB. Free memory was 76.7MB in the beginning and 75.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:28:41,261 INFO L158 Benchmark]: Boogie Preprocessor took 50.80ms. Allocated memory is still 134.2MB. Free memory was 75.0MB in the beginning and 73.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:28:41,261 INFO L158 Benchmark]: RCFGBuilder took 492.75ms. Allocated memory is still 134.2MB. Free memory was 73.2MB in the beginning and 60.3MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 22:28:41,262 INFO L158 Benchmark]: TraceAbstraction took 5051.37ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 59.5MB in the beginning and 103.6MB in the end (delta: -44.1MB). Peak memory consumption was 409.6kB. Max. memory is 16.1GB. [2022-11-25 22:28:41,263 INFO L158 Benchmark]: Witness Printer took 48.71ms. Allocated memory is still 176.2MB. Free memory was 103.6MB in the beginning and 101.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:28:41,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 623.86ms. Allocated memory is still 134.2MB. Free memory was 95.9MB in the beginning and 76.7MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.32ms. Allocated memory is still 134.2MB. Free memory was 76.7MB in the beginning and 75.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.80ms. Allocated memory is still 134.2MB. Free memory was 75.0MB in the beginning and 73.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 492.75ms. Allocated memory is still 134.2MB. Free memory was 73.2MB in the beginning and 60.3MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5051.37ms. Allocated memory was 134.2MB in the beginning and 176.2MB in the end (delta: 41.9MB). Free memory was 59.5MB in the beginning and 103.6MB in the end (delta: -44.1MB). Peak memory consumption was 409.6kB. Max. memory is 16.1GB. * Witness Printer took 48.71ms. Allocated memory is still 176.2MB. Free memory was 103.6MB in the beginning and 101.5MB 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, 19 TransitionsAfterwards, 620 CoEnabledTransitionPairs, 7 FixpointIterations, 34 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 66 TotalNumberOfCompositions, 1734 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 863, independent: 693, independent conditional: 0, independent unconditional: 693, dependent: 170, dependent conditional: 0, dependent unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 415, independent: 373, independent conditional: 0, independent unconditional: 373, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 415, independent: 355, independent conditional: 0, independent unconditional: 355, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 60, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 209, independent: 56, independent conditional: 0, independent unconditional: 56, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 863, independent: 320, independent conditional: 0, independent unconditional: 320, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 415, unknown conditional: 0, unknown unconditional: 415] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, 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: [L682] 0 int g = 42; [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 } } } }; [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! [2022-11-25 22:28:41,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b9ca5dd-1158-4f04-805d-3d1c97ecf19e/bin/utaipan-ByfvJB40ur/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