./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe019_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/bin/utaipan-G1rejxKTta/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/bin/utaipan-G1rejxKTta/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/bin/utaipan-G1rejxKTta/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/bin/utaipan-G1rejxKTta/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe019_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/bin/utaipan-G1rejxKTta --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 e9fa0a1b11704376245a2fedbc5c4fb7e02255cba008bc8067c3e06529a17976 --- 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-dbf71c6-m [2022-10-17 17:23:02,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:23:02,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:23:02,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:23:02,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:23:02,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:23:02,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:23:02,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:23:02,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:23:02,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:23:02,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:23:02,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:23:02,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:23:02,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:23:02,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:23:02,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:23:02,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:23:02,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:23:02,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:23:02,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:23:02,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:23:02,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:23:02,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:23:02,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:23:02,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:23:02,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:23:02,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:23:02,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:23:02,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:23:02,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:23:02,130 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:23:02,131 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:23:02,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:23:02,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:23:02,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:23:02,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:23:02,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:23:02,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:23:02,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:23:02,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:23:02,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:23:02,142 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/bin/utaipan-G1rejxKTta/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-10-17 17:23:02,204 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:23:02,208 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:23:02,209 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 17:23:02,209 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 17:23:02,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 17:23:02,210 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 17:23:02,211 INFO L138 SettingsManager]: * User list type=DISABLED [2022-10-17 17:23:02,211 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-10-17 17:23:02,211 INFO L138 SettingsManager]: * Explicit value domain=true [2022-10-17 17:23:02,211 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-10-17 17:23:02,213 INFO L138 SettingsManager]: * Octagon Domain=false [2022-10-17 17:23:02,213 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-10-17 17:23:02,213 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-10-17 17:23:02,213 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-10-17 17:23:02,214 INFO L138 SettingsManager]: * Interval Domain=false [2022-10-17 17:23:02,214 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-10-17 17:23:02,214 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-10-17 17:23:02,214 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-10-17 17:23:02,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:23:02,216 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:23:02,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:23:02,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:23:02,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:23:02,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 17:23:02,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:23:02,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 17:23:02,217 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:23:02,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 17:23:02,237 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:23:02,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 17:23:02,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:23:02,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 17:23:02,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:23:02,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:23:02,238 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-10-17 17:23:02,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:23:02,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 17:23:02,239 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-10-17 17:23:02,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:23:02,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 17:23:02,239 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-10-17 17:23:02,240 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_fc5f6da6-7b52-49bd-b1c4-99eff224db84/bin/utaipan-G1rejxKTta/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/bin/utaipan-G1rejxKTta Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9fa0a1b11704376245a2fedbc5c4fb7e02255cba008bc8067c3e06529a17976 [2022-10-17 17:23:02,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:23:02,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:23:02,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:23:02,564 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:23:02,565 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:23:02,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/bin/utaipan-G1rejxKTta/../../sv-benchmarks/c/pthread-wmm/safe019_power.oepc.i [2022-10-17 17:23:02,640 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/bin/utaipan-G1rejxKTta/data/bbd58777e/8b4396c1a414403e9c8a61953d975595/FLAG1ae31a468 [2022-10-17 17:23:03,204 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:23:03,205 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/sv-benchmarks/c/pthread-wmm/safe019_power.oepc.i [2022-10-17 17:23:03,224 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/bin/utaipan-G1rejxKTta/data/bbd58777e/8b4396c1a414403e9c8a61953d975595/FLAG1ae31a468 [2022-10-17 17:23:03,507 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/bin/utaipan-G1rejxKTta/data/bbd58777e/8b4396c1a414403e9c8a61953d975595 [2022-10-17 17:23:03,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:23:03,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:23:03,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:23:03,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:23:03,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:23:03,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:23:03" (1/1) ... [2022-10-17 17:23:03,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@517bf71d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:03, skipping insertion in model container [2022-10-17 17:23:03,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:23:03" (1/1) ... [2022-10-17 17:23:03,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:23:03,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:23:03,783 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/sv-benchmarks/c/pthread-wmm/safe019_power.oepc.i[995,1008] [2022-10-17 17:23:04,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:23:04,037 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:23:04,058 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/sv-benchmarks/c/pthread-wmm/safe019_power.oepc.i[995,1008] [2022-10-17 17:23:04,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:23:04,175 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:23:04,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:04 WrapperNode [2022-10-17 17:23:04,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:23:04,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:23:04,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:23:04,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:23:04,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:04" (1/1) ... [2022-10-17 17:23:04,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:04" (1/1) ... [2022-10-17 17:23:04,284 INFO L138 Inliner]: procedures = 177, calls = 87, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 274 [2022-10-17 17:23:04,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:23:04,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:23:04,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:23:04,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:23:04,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:04" (1/1) ... [2022-10-17 17:23:04,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:04" (1/1) ... [2022-10-17 17:23:04,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:04" (1/1) ... [2022-10-17 17:23:04,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:04" (1/1) ... [2022-10-17 17:23:04,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:04" (1/1) ... [2022-10-17 17:23:04,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:04" (1/1) ... [2022-10-17 17:23:04,379 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:04" (1/1) ... [2022-10-17 17:23:04,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:04" (1/1) ... [2022-10-17 17:23:04,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:23:04,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:23:04,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:23:04,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:23:04,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:04" (1/1) ... [2022-10-17 17:23:04,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 17:23:04,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/bin/utaipan-G1rejxKTta/z3 [2022-10-17 17:23:04,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 17:23:04,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc5f6da6-7b52-49bd-b1c4-99eff224db84/bin/utaipan-G1rejxKTta/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 17:23:04,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:23:04,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:23:04,548 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 17:23:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:23:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:23:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:23:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-10-17 17:23:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-10-17 17:23:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-10-17 17:23:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-10-17 17:23:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-10-17 17:23:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-10-17 17:23:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-10-17 17:23:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-10-17 17:23:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:23:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 17:23:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:23:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:23:04,553 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 17:23:04,815 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:23:04,817 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:23:05,793 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:23:06,655 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:23:06,655 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 17:23:06,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:23:06 BoogieIcfgContainer [2022-10-17 17:23:06,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:23:06,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 17:23:06,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 17:23:06,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 17:23:06,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 05:23:03" (1/3) ... [2022-10-17 17:23:06,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579ff9e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:23:06, skipping insertion in model container [2022-10-17 17:23:06,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:23:04" (2/3) ... [2022-10-17 17:23:06,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579ff9e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 05:23:06, skipping insertion in model container [2022-10-17 17:23:06,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:23:06" (3/3) ... [2022-10-17 17:23:06,671 INFO L112 eAbstractionObserver]: Analyzing ICFG safe019_power.oepc.i [2022-10-17 17:23:06,682 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 17:23:06,694 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 17:23:06,694 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 17:23:06,695 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 17:23:06,818 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-17 17:23:06,876 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-10-17 17:23:06,899 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 161 places, 150 transitions, 320 flow [2022-10-17 17:23:06,909 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 161 places, 150 transitions, 320 flow [2022-10-17 17:23:06,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 150 transitions, 320 flow [2022-10-17 17:23:07,030 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-10-17 17:23:07,031 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 17:23:07,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 86. Up to 2 conditions per place. [2022-10-17 17:23:07,041 INFO L118 LiptonReduction]: Number of co-enabled transitions 2600 [2022-10-17 17:23:36,760 WARN L233 SmtUtils]: Spent 6.88s on a formula simplification. DAG size of input: 566 DAG size of output: 532 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)