./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 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_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d984378a3d93078f60e6a73f83b588890817628b7e21c558fe1824f195f48ce --- 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-2329fc7 [2022-12-13 12:49:35,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:49:35,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:49:35,236 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:49:35,236 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:49:35,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:49:35,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:49:35,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:49:35,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:49:35,241 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:49:35,241 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:49:35,242 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:49:35,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:49:35,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:49:35,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:49:35,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:49:35,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:49:35,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:49:35,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:49:35,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:49:35,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:49:35,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:49:35,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:49:35,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:49:35,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:49:35,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:49:35,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:49:35,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:49:35,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:49:35,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:49:35,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:49:35,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:49:35,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:49:35,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:49:35,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:49:35,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:49:35,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:49:35,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:49:35,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:49:35,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:49:35,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:49:35,260 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 12:49:35,284 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:49:35,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:49:35,284 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:49:35,284 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:49:35,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:49:35,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:49:35,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:49:35,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:49:35,286 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:49:35,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:49:35,287 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:49:35,287 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:49:35,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:49:35,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:49:35,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:49:35,288 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 12:49:35,288 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 12:49:35,288 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 12:49:35,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:49:35,288 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:49:35,288 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:49:35,288 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:49:35,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:49:35,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:49:35,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:49:35,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:49:35,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:49:35,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:49:35,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:49:35,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:49:35,290 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:49:35,290 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:49:35,290 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:49:35,290 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:49:35,290 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d984378a3d93078f60e6a73f83b588890817628b7e21c558fe1824f195f48ce [2022-12-13 12:49:35,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:49:35,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:49:35,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:49:35,497 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:49:35,497 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:49:35,498 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i [2022-12-13 12:49:38,039 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:49:38,194 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:49:38,194 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i [2022-12-13 12:49:38,202 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/data/3d7aa01f7/471adbdf2e174034bc8c8e2eb9adcd65/FLAG0df5b0300 [2022-12-13 12:49:38,213 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/data/3d7aa01f7/471adbdf2e174034bc8c8e2eb9adcd65 [2022-12-13 12:49:38,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:49:38,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:49:38,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:49:38,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:49:38,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:49:38,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:49:38" (1/1) ... [2022-12-13 12:49:38,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6467b299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:38, skipping insertion in model container [2022-12-13 12:49:38,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:49:38" (1/1) ... [2022-12-13 12:49:38,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:49:38,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:49:38,359 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_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i[999,1012] [2022-12-13 12:49:38,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,460 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:49:38,481 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:49:38,490 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_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i[999,1012] [2022-12-13 12:49:38,506 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,515 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,516 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,518 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,532 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:38,533 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:38,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:49:38,576 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:49:38,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:38 WrapperNode [2022-12-13 12:49:38,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:49:38,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:49:38,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:49:38,577 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:49:38,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:38" (1/1) ... [2022-12-13 12:49:38,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:38" (1/1) ... [2022-12-13 12:49:38,609 INFO L138 Inliner]: procedures = 175, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 121 [2022-12-13 12:49:38,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:49:38,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:49:38,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:49:38,610 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:49:38,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:38" (1/1) ... [2022-12-13 12:49:38,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:38" (1/1) ... [2022-12-13 12:49:38,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:38" (1/1) ... [2022-12-13 12:49:38,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:38" (1/1) ... [2022-12-13 12:49:38,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:38" (1/1) ... [2022-12-13 12:49:38,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:38" (1/1) ... [2022-12-13 12:49:38,626 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:38" (1/1) ... [2022-12-13 12:49:38,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:38" (1/1) ... [2022-12-13 12:49:38,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:49:38,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:49:38,630 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:49:38,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:49:38,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:38" (1/1) ... [2022-12-13 12:49:38,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:49:38,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:49:38,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:49:38,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:49:38,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:49:38,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 12:49:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:49:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:49:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:49:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 12:49:38,687 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 12:49:38,687 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 12:49:38,687 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 12:49:38,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:49:38,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 12:49:38,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:49:38,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:49:38,689 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 12:49:38,793 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:49:38,794 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:49:39,006 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:49:39,093 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:49:39,094 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:49:39,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:49:39 BoogieIcfgContainer [2022-12-13 12:49:39,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:49:39,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:49:39,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:49:39,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:49:39,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:49:38" (1/3) ... [2022-12-13 12:49:39,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5360261a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:49:39, skipping insertion in model container [2022-12-13 12:49:39,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:38" (2/3) ... [2022-12-13 12:49:39,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5360261a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:49:39, skipping insertion in model container [2022-12-13 12:49:39,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:49:39" (3/3) ... [2022-12-13 12:49:39,102 INFO L112 eAbstractionObserver]: Analyzing ICFG mix034_pso.opt_tso.opt.i [2022-12-13 12:49:39,116 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:49:39,117 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-12-13 12:49:39,117 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:49:39,150 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:49:39,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 106 transitions, 222 flow [2022-12-13 12:49:39,209 INFO L130 PetriNetUnfolder]: 2/104 cut-off events. [2022-12-13 12:49:39,209 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:49:39,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 104 events. 2/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2022-12-13 12:49:39,214 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 106 transitions, 222 flow [2022-12-13 12:49:39,217 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 104 transitions, 214 flow [2022-12-13 12:49:39,220 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:49:39,228 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 104 transitions, 214 flow [2022-12-13 12:49:39,230 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 104 transitions, 214 flow [2022-12-13 12:49:39,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 104 transitions, 214 flow [2022-12-13 12:49:39,248 INFO L130 PetriNetUnfolder]: 2/104 cut-off events. [2022-12-13 12:49:39,248 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:49:39,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 111 conditions, 104 events. 2/104 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2022-12-13 12:49:39,249 INFO L119 LiptonReduction]: Number of co-enabled transitions 1316 [2022-12-13 12:49:41,903 INFO L134 LiptonReduction]: Checked pairs total: 2824 [2022-12-13 12:49:41,903 INFO L136 LiptonReduction]: Total number of compositions: 105 [2022-12-13 12:49:41,916 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:49:41,921 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@6b8ed527, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:49:41,921 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-13 12:49:41,923 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 12:49:41,923 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:49:41,923 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:49:41,923 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 12:49:41,923 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-13 12:49:41,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:49:41,928 INFO L85 PathProgramCache]: Analyzing trace with hash 460, now seen corresponding path program 1 times [2022-12-13 12:49:41,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:49:41,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298824681] [2022-12-13 12:49:41,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:49:41,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:49:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:49:42,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:49:42,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:49:42,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298824681] [2022-12-13 12:49:42,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298824681] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:49:42,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:49:42,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 12:49:42,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670853399] [2022-12-13 12:49:42,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:49:42,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:49:42,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:49:42,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:49:42,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:49:42,050 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 211 [2022-12-13 12:49:42,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 54 flow. Second operand has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 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) [2022-12-13 12:49:42,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:49:42,051 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 211 [2022-12-13 12:49:42,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:49:42,155 INFO L130 PetriNetUnfolder]: 249/434 cut-off events. [2022-12-13 12:49:42,155 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 12:49:42,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 874 conditions, 434 events. 249/434 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1686 event pairs, 249 based on Foata normal form. 0/354 useless extension candidates. Maximal degree in co-relation 864. Up to 427 conditions per place. [2022-12-13 12:49:42,158 INFO L137 encePairwiseOnDemand]: 206/211 looper letters, 18 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2022-12-13 12:49:42,158 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 19 transitions, 80 flow [2022-12-13 12:49:42,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:49:42,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:49:42,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 215 transitions. [2022-12-13 12:49:42,168 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.509478672985782 [2022-12-13 12:49:42,168 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 215 transitions. [2022-12-13 12:49:42,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 215 transitions. [2022-12-13 12:49:42,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:49:42,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 215 transitions. [2022-12-13 12:49:42,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 107.5) internal successors, (215), 2 states have internal predecessors, (215), 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) [2022-12-13 12:49:42,176 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 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) [2022-12-13 12:49:42,176 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 211.0) internal successors, (633), 3 states have internal predecessors, (633), 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) [2022-12-13 12:49:42,178 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 54 flow. Second operand 2 states and 215 transitions. [2022-12-13 12:49:42,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 19 transitions, 80 flow [2022-12-13 12:49:42,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 19 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:49:42,181 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 42 flow [2022-12-13 12:49:42,182 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=42, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2022-12-13 12:49:42,185 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, -5 predicate places. [2022-12-13 12:49:42,185 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 42 flow [2022-12-13 12:49:42,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 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) [2022-12-13 12:49:42,185 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:49:42,185 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 12:49:42,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:49:42,186 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-13 12:49:42,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:49:42,186 INFO L85 PathProgramCache]: Analyzing trace with hash 433931698, now seen corresponding path program 1 times [2022-12-13 12:49:42,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:49:42,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889266954] [2022-12-13 12:49:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:49:42,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:49:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:49:42,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:49:42,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:49:42,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889266954] [2022-12-13 12:49:42,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889266954] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:49:42,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:49:42,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:49:42,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072830016] [2022-12-13 12:49:42,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:49:42,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:49:42,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:49:42,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:49:42,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:49:42,381 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 211 [2022-12-13 12:49:42,382 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2022-12-13 12:49:42,382 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:49:42,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 211 [2022-12-13 12:49:42,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:49:42,469 INFO L130 PetriNetUnfolder]: 204/381 cut-off events. [2022-12-13 12:49:42,469 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:49:42,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 381 events. 204/381 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1549 event pairs, 24 based on Foata normal form. 0/341 useless extension candidates. Maximal degree in co-relation 744. Up to 293 conditions per place. [2022-12-13 12:49:42,471 INFO L137 encePairwiseOnDemand]: 208/211 looper letters, 22 selfloop transitions, 2 changer transitions 2/27 dead transitions. [2022-12-13 12:49:42,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 27 transitions, 110 flow [2022-12-13 12:49:42,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:49:42,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:49:42,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 312 transitions. [2022-12-13 12:49:42,473 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4928909952606635 [2022-12-13 12:49:42,473 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 312 transitions. [2022-12-13 12:49:42,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 312 transitions. [2022-12-13 12:49:42,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:49:42,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 312 transitions. [2022-12-13 12:49:42,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 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) [2022-12-13 12:49:42,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 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) [2022-12-13 12:49:42,476 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 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) [2022-12-13 12:49:42,476 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 42 flow. Second operand 3 states and 312 transitions. [2022-12-13 12:49:42,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 27 transitions, 110 flow [2022-12-13 12:49:42,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 27 transitions, 110 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:49:42,477 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 42 flow [2022-12-13 12:49:42,477 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2022-12-13 12:49:42,477 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, -4 predicate places. [2022-12-13 12:49:42,478 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 42 flow [2022-12-13 12:49:42,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 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) [2022-12-13 12:49:42,478 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:49:42,478 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:49:42,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:49:42,478 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-13 12:49:42,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:49:42,479 INFO L85 PathProgramCache]: Analyzing trace with hash 396620192, now seen corresponding path program 1 times [2022-12-13 12:49:42,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:49:42,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353079843] [2022-12-13 12:49:42,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:49:42,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:49:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:49:42,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:49:42,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:49:42,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353079843] [2022-12-13 12:49:42,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353079843] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:49:42,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:49:42,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:49:42,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008625846] [2022-12-13 12:49:42,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:49:42,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:49:42,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:49:42,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:49:42,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:49:42,604 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 211 [2022-12-13 12:49:42,604 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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) [2022-12-13 12:49:42,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:49:42,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 211 [2022-12-13 12:49:42,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:49:42,690 INFO L130 PetriNetUnfolder]: 159/300 cut-off events. [2022-12-13 12:49:42,690 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-12-13 12:49:42,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 615 conditions, 300 events. 159/300 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1105 event pairs, 57 based on Foata normal form. 0/288 useless extension candidates. Maximal degree in co-relation 611. Up to 183 conditions per place. [2022-12-13 12:49:42,692 INFO L137 encePairwiseOnDemand]: 208/211 looper letters, 21 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2022-12-13 12:49:42,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 24 transitions, 102 flow [2022-12-13 12:49:42,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:49:42,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:49:42,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2022-12-13 12:49:42,695 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4834123222748815 [2022-12-13 12:49:42,695 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2022-12-13 12:49:42,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2022-12-13 12:49:42,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:49:42,695 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2022-12-13 12:49:42,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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) [2022-12-13 12:49:42,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 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) [2022-12-13 12:49:42,699 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 211.0) internal successors, (844), 4 states have internal predecessors, (844), 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) [2022-12-13 12:49:42,699 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 42 flow. Second operand 3 states and 306 transitions. [2022-12-13 12:49:42,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 24 transitions, 102 flow [2022-12-13 12:49:42,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 24 transitions, 98 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:49:42,700 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 46 flow [2022-12-13 12:49:42,700 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2022-12-13 12:49:42,701 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, -4 predicate places. [2022-12-13 12:49:42,701 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 46 flow [2022-12-13 12:49:42,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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) [2022-12-13 12:49:42,701 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:49:42,702 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:49:42,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:49:42,702 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-13 12:49:42,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:49:42,702 INFO L85 PathProgramCache]: Analyzing trace with hash -589675525, now seen corresponding path program 1 times [2022-12-13 12:49:42,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:49:42,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874128451] [2022-12-13 12:49:42,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:49:42,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:49:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:49:42,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:49:42,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:49:42,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874128451] [2022-12-13 12:49:42,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874128451] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:49:42,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:49:42,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:49:42,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075413774] [2022-12-13 12:49:42,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:49:42,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:49:42,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:49:42,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:49:42,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:49:42,930 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 211 [2022-12-13 12:49:42,932 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 46 flow. Second operand has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 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) [2022-12-13 12:49:42,932 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:49:42,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 211 [2022-12-13 12:49:42,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:49:43,058 INFO L130 PetriNetUnfolder]: 150/291 cut-off events. [2022-12-13 12:49:43,058 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-12-13 12:49:43,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 626 conditions, 291 events. 150/291 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1113 event pairs, 32 based on Foata normal form. 20/311 useless extension candidates. Maximal degree in co-relation 621. Up to 175 conditions per place. [2022-12-13 12:49:43,059 INFO L137 encePairwiseOnDemand]: 206/211 looper letters, 21 selfloop transitions, 3 changer transitions 11/36 dead transitions. [2022-12-13 12:49:43,060 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 36 transitions, 157 flow [2022-12-13 12:49:43,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:49:43,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:49:43,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 547 transitions. [2022-12-13 12:49:43,063 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4320695102685624 [2022-12-13 12:49:43,063 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 547 transitions. [2022-12-13 12:49:43,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 547 transitions. [2022-12-13 12:49:43,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:49:43,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 547 transitions. [2022-12-13 12:49:43,065 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.16666666666667) internal successors, (547), 6 states have internal predecessors, (547), 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) [2022-12-13 12:49:43,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 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) [2022-12-13 12:49:43,067 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 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) [2022-12-13 12:49:43,067 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 46 flow. Second operand 6 states and 547 transitions. [2022-12-13 12:49:43,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 36 transitions, 157 flow [2022-12-13 12:49:43,067 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 151 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:49:43,068 INFO L231 Difference]: Finished difference. Result has 32 places, 17 transitions, 56 flow [2022-12-13 12:49:43,068 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=56, PETRI_PLACES=32, PETRI_TRANSITIONS=17} [2022-12-13 12:49:43,068 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2022-12-13 12:49:43,068 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 17 transitions, 56 flow [2022-12-13 12:49:43,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.6) internal successors, (433), 5 states have internal predecessors, (433), 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) [2022-12-13 12:49:43,069 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:49:43,069 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:49:43,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:49:43,069 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-13 12:49:43,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:49:43,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1169369080, now seen corresponding path program 1 times [2022-12-13 12:49:43,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:49:43,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322703600] [2022-12-13 12:49:43,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:49:43,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:49:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:49:43,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:49:43,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:49:43,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322703600] [2022-12-13 12:49:43,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322703600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:49:43,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:49:43,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:49:43,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084577002] [2022-12-13 12:49:43,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:49:43,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:49:43,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:49:43,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:49:43,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:49:43,186 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 211 [2022-12-13 12:49:43,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 17 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 94.25) internal successors, (377), 4 states have internal predecessors, (377), 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) [2022-12-13 12:49:43,188 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:49:43,188 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 211 [2022-12-13 12:49:43,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:49:43,274 INFO L130 PetriNetUnfolder]: 70/156 cut-off events. [2022-12-13 12:49:43,274 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-12-13 12:49:43,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 156 events. 70/156 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 516 event pairs, 15 based on Foata normal form. 20/176 useless extension candidates. Maximal degree in co-relation 378. Up to 82 conditions per place. [2022-12-13 12:49:43,275 INFO L137 encePairwiseOnDemand]: 206/211 looper letters, 22 selfloop transitions, 3 changer transitions 15/41 dead transitions. [2022-12-13 12:49:43,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 41 transitions, 201 flow [2022-12-13 12:49:43,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:49:43,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:49:43,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 502 transitions. [2022-12-13 12:49:43,278 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4758293838862559 [2022-12-13 12:49:43,278 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 502 transitions. [2022-12-13 12:49:43,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 502 transitions. [2022-12-13 12:49:43,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:49:43,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 502 transitions. [2022-12-13 12:49:43,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 100.4) internal successors, (502), 5 states have internal predecessors, (502), 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) [2022-12-13 12:49:43,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 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) [2022-12-13 12:49:43,281 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 211.0) internal successors, (1266), 6 states have internal predecessors, (1266), 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) [2022-12-13 12:49:43,282 INFO L175 Difference]: Start difference. First operand has 32 places, 17 transitions, 56 flow. Second operand 5 states and 502 transitions. [2022-12-13 12:49:43,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 41 transitions, 201 flow [2022-12-13 12:49:43,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 41 transitions, 183 flow, removed 2 selfloop flow, removed 5 redundant places. [2022-12-13 12:49:43,283 INFO L231 Difference]: Finished difference. Result has 32 places, 19 transitions, 73 flow [2022-12-13 12:49:43,283 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=73, PETRI_PLACES=32, PETRI_TRANSITIONS=19} [2022-12-13 12:49:43,283 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2022-12-13 12:49:43,284 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 19 transitions, 73 flow [2022-12-13 12:49:43,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.25) internal successors, (377), 4 states have internal predecessors, (377), 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) [2022-12-13 12:49:43,284 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:49:43,284 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:49:43,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:49:43,284 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-13 12:49:43,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:49:43,284 INFO L85 PathProgramCache]: Analyzing trace with hash 673316558, now seen corresponding path program 1 times [2022-12-13 12:49:43,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:49:43,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5529467] [2022-12-13 12:49:43,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:49:43,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:49:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:49:43,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:49:43,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:49:43,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5529467] [2022-12-13 12:49:43,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5529467] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:49:43,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:49:43,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:49:43,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555923393] [2022-12-13 12:49:43,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:49:43,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:49:43,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:49:43,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:49:43,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:49:43,421 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 211 [2022-12-13 12:49:43,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 19 transitions, 73 flow. Second operand has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 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) [2022-12-13 12:49:43,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:49:43,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 211 [2022-12-13 12:49:43,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:49:43,502 INFO L130 PetriNetUnfolder]: 24/69 cut-off events. [2022-12-13 12:49:43,502 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-12-13 12:49:43,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 69 events. 24/69 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 149 event pairs, 10 based on Foata normal form. 8/77 useless extension candidates. Maximal degree in co-relation 194. Up to 29 conditions per place. [2022-12-13 12:49:43,503 INFO L137 encePairwiseOnDemand]: 206/211 looper letters, 20 selfloop transitions, 5 changer transitions 8/34 dead transitions. [2022-12-13 12:49:43,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 34 transitions, 186 flow [2022-12-13 12:49:43,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:49:43,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:49:43,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 587 transitions. [2022-12-13 12:49:43,506 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4636650868878357 [2022-12-13 12:49:43,506 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 587 transitions. [2022-12-13 12:49:43,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 587 transitions. [2022-12-13 12:49:43,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:49:43,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 587 transitions. [2022-12-13 12:49:43,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.83333333333333) internal successors, (587), 6 states have internal predecessors, (587), 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) [2022-12-13 12:49:43,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 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) [2022-12-13 12:49:43,512 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 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) [2022-12-13 12:49:43,512 INFO L175 Difference]: Start difference. First operand has 32 places, 19 transitions, 73 flow. Second operand 6 states and 587 transitions. [2022-12-13 12:49:43,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 34 transitions, 186 flow [2022-12-13 12:49:43,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 34 transitions, 160 flow, removed 7 selfloop flow, removed 4 redundant places. [2022-12-13 12:49:43,514 INFO L231 Difference]: Finished difference. Result has 34 places, 19 transitions, 76 flow [2022-12-13 12:49:43,514 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=76, PETRI_PLACES=34, PETRI_TRANSITIONS=19} [2022-12-13 12:49:43,515 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 4 predicate places. [2022-12-13 12:49:43,515 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 19 transitions, 76 flow [2022-12-13 12:49:43,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.4) internal successors, (472), 5 states have internal predecessors, (472), 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) [2022-12-13 12:49:43,516 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:49:43,516 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:49:43,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:49:43,516 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-13 12:49:43,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:49:43,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1894870546, now seen corresponding path program 1 times [2022-12-13 12:49:43,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:49:43,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212685020] [2022-12-13 12:49:43,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:49:43,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:49:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:49:43,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:49:43,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:49:43,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212685020] [2022-12-13 12:49:43,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212685020] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:49:43,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:49:43,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:49:43,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044114814] [2022-12-13 12:49:43,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:49:43,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:49:43,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:49:43,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:49:43,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:49:43,656 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 211 [2022-12-13 12:49:43,656 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 19 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 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) [2022-12-13 12:49:43,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:49:43,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 211 [2022-12-13 12:49:43,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:49:43,730 INFO L130 PetriNetUnfolder]: 24/75 cut-off events. [2022-12-13 12:49:43,730 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2022-12-13 12:49:43,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 75 events. 24/75 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 195 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 212. Up to 47 conditions per place. [2022-12-13 12:49:43,731 INFO L137 encePairwiseOnDemand]: 208/211 looper letters, 34 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2022-12-13 12:49:43,731 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 219 flow [2022-12-13 12:49:43,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:49:43,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:49:43,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 401 transitions. [2022-12-13 12:49:43,733 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47511848341232227 [2022-12-13 12:49:43,733 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 401 transitions. [2022-12-13 12:49:43,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 401 transitions. [2022-12-13 12:49:43,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:49:43,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 401 transitions. [2022-12-13 12:49:43,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 100.25) internal successors, (401), 4 states have internal predecessors, (401), 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) [2022-12-13 12:49:43,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 211.0) internal successors, (1055), 5 states have internal predecessors, (1055), 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) [2022-12-13 12:49:43,737 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 211.0) internal successors, (1055), 5 states have internal predecessors, (1055), 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) [2022-12-13 12:49:43,737 INFO L175 Difference]: Start difference. First operand has 34 places, 19 transitions, 76 flow. Second operand 4 states and 401 transitions. [2022-12-13 12:49:43,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 219 flow [2022-12-13 12:49:43,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 36 transitions, 188 flow, removed 10 selfloop flow, removed 5 redundant places. [2022-12-13 12:49:43,739 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 73 flow [2022-12-13 12:49:43,740 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=73, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2022-12-13 12:49:43,740 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2022-12-13 12:49:43,740 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 73 flow [2022-12-13 12:49:43,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.75) internal successors, (383), 4 states have internal predecessors, (383), 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) [2022-12-13 12:49:43,741 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:49:43,741 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:49:43,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 12:49:43,741 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-13 12:49:43,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:49:43,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1164850362, now seen corresponding path program 2 times [2022-12-13 12:49:43,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:49:43,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439577734] [2022-12-13 12:49:43,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:49:43,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:49:43,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:49:44,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:49:44,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:49:44,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439577734] [2022-12-13 12:49:44,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439577734] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:49:44,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:49:44,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:49:44,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548832757] [2022-12-13 12:49:44,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:49:44,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:49:44,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:49:44,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:49:44,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:49:44,196 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 211 [2022-12-13 12:49:44,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 73 flow. Second operand has 6 states, 6 states have (on average 93.33333333333333) internal successors, (560), 6 states have internal predecessors, (560), 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) [2022-12-13 12:49:44,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:49:44,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 211 [2022-12-13 12:49:44,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:49:44,308 INFO L130 PetriNetUnfolder]: 22/89 cut-off events. [2022-12-13 12:49:44,308 INFO L131 PetriNetUnfolder]: For 60/60 co-relation queries the response was YES. [2022-12-13 12:49:44,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 89 events. 22/89 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 250 event pairs, 6 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 251. Up to 29 conditions per place. [2022-12-13 12:49:44,309 INFO L137 encePairwiseOnDemand]: 206/211 looper letters, 28 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2022-12-13 12:49:44,309 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 34 transitions, 195 flow [2022-12-13 12:49:44,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:49:44,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:49:44,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 575 transitions. [2022-12-13 12:49:44,311 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4541864139020537 [2022-12-13 12:49:44,311 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 575 transitions. [2022-12-13 12:49:44,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 575 transitions. [2022-12-13 12:49:44,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:49:44,311 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 575 transitions. [2022-12-13 12:49:44,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.83333333333333) internal successors, (575), 6 states have internal predecessors, (575), 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) [2022-12-13 12:49:44,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 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) [2022-12-13 12:49:44,313 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 211.0) internal successors, (1477), 7 states have internal predecessors, (1477), 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) [2022-12-13 12:49:44,313 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 73 flow. Second operand 6 states and 575 transitions. [2022-12-13 12:49:44,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 34 transitions, 195 flow [2022-12-13 12:49:44,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 34 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:49:44,315 INFO L231 Difference]: Finished difference. Result has 38 places, 21 transitions, 89 flow [2022-12-13 12:49:44,315 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=211, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=89, PETRI_PLACES=38, PETRI_TRANSITIONS=21} [2022-12-13 12:49:44,315 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 8 predicate places. [2022-12-13 12:49:44,315 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 21 transitions, 89 flow [2022-12-13 12:49:44,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.33333333333333) internal successors, (560), 6 states have internal predecessors, (560), 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) [2022-12-13 12:49:44,315 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:49:44,315 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:49:44,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 12:49:44,316 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-13 12:49:44,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:49:44,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1272322886, now seen corresponding path program 3 times [2022-12-13 12:49:44,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:49:44,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000340094] [2022-12-13 12:49:44,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:49:44,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:49:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:49:44,341 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:49:44,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:49:44,374 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:49:44,374 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:49:44,375 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2022-12-13 12:49:44,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2022-12-13 12:49:44,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-12-13 12:49:44,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-12-13 12:49:44,376 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-12-13 12:49:44,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2022-12-13 12:49:44,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2022-12-13 12:49:44,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2022-12-13 12:49:44,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2022-12-13 12:49:44,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2022-12-13 12:49:44,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 12:49:44,377 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2022-12-13 12:49:44,381 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 12:49:44,381 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:49:44,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:49:44 BasicIcfg [2022-12-13 12:49:44,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:49:44,409 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:49:44,409 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:49:44,409 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:49:44,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:49:39" (3/4) ... [2022-12-13 12:49:44,411 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:49:44,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:49:44,412 INFO L158 Benchmark]: Toolchain (without parser) took 6196.36ms. Allocated memory was 119.5MB in the beginning and 199.2MB in the end (delta: 79.7MB). Free memory was 77.2MB in the beginning and 126.2MB in the end (delta: -49.1MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2022-12-13 12:49:44,412 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 119.5MB. Free memory was 85.0MB in the beginning and 85.0MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:49:44,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.17ms. Allocated memory was 119.5MB in the beginning and 165.7MB in the end (delta: 46.1MB). Free memory was 76.8MB in the beginning and 132.7MB in the end (delta: -55.9MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2022-12-13 12:49:44,413 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.59ms. Allocated memory is still 165.7MB. Free memory was 132.7MB in the beginning and 130.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:49:44,413 INFO L158 Benchmark]: Boogie Preprocessor took 19.51ms. Allocated memory is still 165.7MB. Free memory was 130.7MB in the beginning and 128.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:49:44,413 INFO L158 Benchmark]: RCFGBuilder took 465.55ms. Allocated memory is still 165.7MB. Free memory was 128.7MB in the beginning and 99.3MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-13 12:49:44,413 INFO L158 Benchmark]: TraceAbstraction took 5311.08ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 98.2MB in the beginning and 126.2MB in the end (delta: -28.1MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2022-12-13 12:49:44,414 INFO L158 Benchmark]: Witness Printer took 2.71ms. Allocated memory is still 199.2MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:49:44,415 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 119.5MB. Free memory was 85.0MB in the beginning and 85.0MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.17ms. Allocated memory was 119.5MB in the beginning and 165.7MB in the end (delta: 46.1MB). Free memory was 76.8MB in the beginning and 132.7MB in the end (delta: -55.9MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.59ms. Allocated memory is still 165.7MB. Free memory was 132.7MB in the beginning and 130.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.51ms. Allocated memory is still 165.7MB. Free memory was 130.7MB in the beginning and 128.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 465.55ms. Allocated memory is still 165.7MB. Free memory was 128.7MB in the beginning and 99.3MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5311.08ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 98.2MB in the beginning and 126.2MB in the end (delta: -28.1MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Witness Printer took 2.71ms. Allocated memory is still 199.2MB. Free memory is still 126.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 109 PlacesBefore, 30 PlacesAfterwards, 104 TransitionsBefore, 24 TransitionsAfterwards, 1316 CoEnabledTransitionPairs, 6 FixpointIterations, 51 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 105 TotalNumberOfCompositions, 2824 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1505, independent: 1391, independent conditional: 0, independent unconditional: 1391, dependent: 114, dependent conditional: 0, dependent unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 760, independent: 732, independent conditional: 0, independent unconditional: 732, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1505, independent: 659, independent conditional: 0, independent unconditional: 659, dependent: 86, dependent conditional: 0, dependent unconditional: 86, unknown: 760, unknown conditional: 0, unknown unconditional: 760] , Statistics on independence cache: Total cache size (in pairs): 61, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L720] 0 _Bool x$flush_delayed; [L721] 0 int x$mem_tmp; [L722] 0 _Bool x$r_buff0_thd0; [L723] 0 _Bool x$r_buff0_thd1; [L724] 0 _Bool x$r_buff0_thd2; [L725] 0 _Bool x$r_buff1_thd0; [L726] 0 _Bool x$r_buff1_thd1; [L727] 0 _Bool x$r_buff1_thd2; [L728] 0 _Bool x$read_delayed; [L729] 0 int *x$read_delayed_var; [L730] 0 int x$w_buff0; [L731] 0 _Bool x$w_buff0_used; [L732] 0 int x$w_buff1; [L733] 0 _Bool x$w_buff1_used; [L735] 0 int y = 0; [L737] 0 int z = 0; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L813] 0 pthread_t t903; [L814] FCALL, FORK 0 pthread_create(&t903, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t903, ((void *)0), P0, ((void *)0))=-1, t903={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L815] 0 pthread_t t904; [L816] FCALL, FORK 0 pthread_create(&t904, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t904, ((void *)0), P1, ((void *)0))=0, t903={5:0}, t904={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L771] 2 x$w_buff1 = x$w_buff0 [L772] 2 x$w_buff0 = 1 [L773] 2 x$w_buff1_used = x$w_buff0_used [L774] 2 x$w_buff0_used = (_Bool)1 [L775] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L775] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L776] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L777] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L778] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L779] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L782] 2 y = 1 [L785] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L788] 2 __unbuffered_p1_EBX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L743] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L746] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L747] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L748] 1 x$flush_delayed = weak$$choice2 [L749] 1 x$mem_tmp = x [L750] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L751] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L752] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L753] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L754] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L755] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L756] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L757] 1 __unbuffered_p0_EAX = x [L758] 1 x = x$flush_delayed ? x$mem_tmp : x [L759] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L766] 1 return 0; [L791] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L792] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L793] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L794] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L795] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L798] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L800] 2 return 0; [L818] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L820] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L820] RET 0 assume_abort_if_not(main$tmp_guard0) [L822] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L823] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L824] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L825] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L826] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t903={5:0}, t904={3:0}, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L829] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L831] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 811]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 816]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 814]: 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 5 procedures, 125 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 225 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 172 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 597 IncrementalHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 11 mSDtfsCounter, 597 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=8, InterpolantAutomatonStates: 35, 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, 1.1s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 347 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 could not prove your program: unable to determine feasibility of some traces [2022-12-13 12:49:44,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d984378a3d93078f60e6a73f83b588890817628b7e21c558fe1824f195f48ce --- 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-2329fc7 [2022-12-13 12:49:46,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:49:46,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:49:46,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:49:46,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:49:46,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:49:46,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:49:46,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:49:46,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:49:46,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:49:46,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:49:46,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:49:46,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:49:46,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:49:46,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:49:46,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:49:46,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:49:46,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:49:46,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:49:46,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:49:46,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:49:46,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:49:46,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:49:46,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:49:46,130 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:49:46,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:49:46,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:49:46,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:49:46,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:49:46,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:49:46,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:49:46,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:49:46,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:49:46,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:49:46,134 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:49:46,134 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:49:46,135 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:49:46,135 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:49:46,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:49:46,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:49:46,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:49:46,137 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 12:49:46,152 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:49:46,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:49:46,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:49:46,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:49:46,153 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:49:46,153 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:49:46,154 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:49:46,154 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:49:46,154 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:49:46,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:49:46,154 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:49:46,154 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:49:46,155 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:49:46,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:49:46,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:49:46,155 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 12:49:46,155 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 12:49:46,155 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 12:49:46,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:49:46,155 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:49:46,156 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 12:49:46,156 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 12:49:46,156 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:49:46,156 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:49:46,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:49:46,156 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:49:46,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:49:46,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:49:46,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:49:46,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:49:46,157 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 12:49:46,157 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 12:49:46,157 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:49:46,157 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:49:46,157 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:49:46,157 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 12:49:46,157 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:49:46,158 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/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_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 0d984378a3d93078f60e6a73f83b588890817628b7e21c558fe1824f195f48ce [2022-12-13 12:49:46,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:49:46,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:49:46,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:49:46,383 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:49:46,383 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:49:46,384 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i [2022-12-13 12:49:48,968 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:49:49,164 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:49:49,165 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i [2022-12-13 12:49:49,176 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/data/c05b164f2/ef76c8025b7246f9b866e171181ba284/FLAG258109764 [2022-12-13 12:49:49,189 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/data/c05b164f2/ef76c8025b7246f9b866e171181ba284 [2022-12-13 12:49:49,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:49:49,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:49:49,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:49:49,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:49:49,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:49:49,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:49:49" (1/1) ... [2022-12-13 12:49:49,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a213d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:49, skipping insertion in model container [2022-12-13 12:49:49,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:49:49" (1/1) ... [2022-12-13 12:49:49,203 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:49:49,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:49:49,372 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_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i[999,1012] [2022-12-13 12:49:49,511 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,520 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,521 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,522 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,524 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,525 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,526 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,528 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,534 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,535 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,537 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,538 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:49:49,553 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:49:49,565 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_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/sv-benchmarks/c/pthread-wmm/mix034_pso.opt_tso.opt.i[999,1012] [2022-12-13 12:49:49,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,587 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,588 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,592 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,592 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,593 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,593 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,593 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,595 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,595 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,596 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,600 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,603 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 12:49:49,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 12:49:49,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:49:49,643 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:49:49,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:49 WrapperNode [2022-12-13 12:49:49,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:49:49,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:49:49,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:49:49,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:49:49,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:49" (1/1) ... [2022-12-13 12:49:49,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:49" (1/1) ... [2022-12-13 12:49:49,696 INFO L138 Inliner]: procedures = 178, calls = 45, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 122 [2022-12-13 12:49:49,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:49:49,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:49:49,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:49:49,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:49:49,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:49" (1/1) ... [2022-12-13 12:49:49,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:49" (1/1) ... [2022-12-13 12:49:49,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:49" (1/1) ... [2022-12-13 12:49:49,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:49" (1/1) ... [2022-12-13 12:49:49,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:49" (1/1) ... [2022-12-13 12:49:49,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:49" (1/1) ... [2022-12-13 12:49:49,722 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:49" (1/1) ... [2022-12-13 12:49:49,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:49" (1/1) ... [2022-12-13 12:49:49,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:49:49,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:49:49,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:49:49,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:49:49,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:49" (1/1) ... [2022-12-13 12:49:49,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:49:49,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:49:49,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:49:49,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:49:49,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 12:49:49,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:49:49,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:49:49,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:49:49,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 12:49:49,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 12:49:49,787 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 12:49:49,787 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 12:49:49,788 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 12:49:49,788 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 12:49:49,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 12:49:49,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:49:49,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:49:49,789 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 12:49:49,904 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:49:49,906 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:49:50,178 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:49:50,259 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:49:50,260 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:49:50,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:49:50 BoogieIcfgContainer [2022-12-13 12:49:50,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:49:50,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:49:50,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:49:50,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:49:50,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:49:49" (1/3) ... [2022-12-13 12:49:50,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661fe127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:49:50, skipping insertion in model container [2022-12-13 12:49:50,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:49:49" (2/3) ... [2022-12-13 12:49:50,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661fe127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:49:50, skipping insertion in model container [2022-12-13 12:49:50,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:49:50" (3/3) ... [2022-12-13 12:49:50,270 INFO L112 eAbstractionObserver]: Analyzing ICFG mix034_pso.opt_tso.opt.i [2022-12-13 12:49:50,287 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:49:50,288 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-12-13 12:49:50,288 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:49:50,332 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 12:49:50,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 107 transitions, 224 flow [2022-12-13 12:49:50,388 INFO L130 PetriNetUnfolder]: 2/105 cut-off events. [2022-12-13 12:49:50,389 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:49:50,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 105 events. 2/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2022-12-13 12:49:50,392 INFO L82 GeneralOperation]: Start removeDead. Operand has 112 places, 107 transitions, 224 flow [2022-12-13 12:49:50,395 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 105 transitions, 216 flow [2022-12-13 12:49:50,398 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 12:49:50,405 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 105 transitions, 216 flow [2022-12-13 12:49:50,407 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 105 transitions, 216 flow [2022-12-13 12:49:50,408 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 105 transitions, 216 flow [2022-12-13 12:49:50,424 INFO L130 PetriNetUnfolder]: 2/105 cut-off events. [2022-12-13 12:49:50,425 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:49:50,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 105 events. 2/105 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2022-12-13 12:49:50,426 INFO L119 LiptonReduction]: Number of co-enabled transitions 1316 [2022-12-13 12:49:54,885 INFO L134 LiptonReduction]: Checked pairs total: 2917 [2022-12-13 12:49:54,885 INFO L136 LiptonReduction]: Total number of compositions: 102 [2022-12-13 12:49:54,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:49:54,899 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=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@67c15f8b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:49:54,902 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-13 12:49:54,903 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 12:49:54,903 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:49:54,903 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:49:54,904 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 12:49:54,904 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-13 12:49:54,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:49:54,908 INFO L85 PathProgramCache]: Analyzing trace with hash 459, now seen corresponding path program 1 times [2022-12-13 12:49:54,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:49:54,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293224018] [2022-12-13 12:49:54,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:49:54,917 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:49:54,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:49:54,918 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 12:49:54,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 12:49:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:49:54,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 12:49:54,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:49:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:49:54,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:49:54,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:49:54,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1293224018] [2022-12-13 12:49:54,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1293224018] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:49:54,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:49:54,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 12:49:54,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63040995] [2022-12-13 12:49:54,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:49:54,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:49:54,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:49:54,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:49:54,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:49:54,999 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 209 [2022-12-13 12:49:55,001 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 24 transitions, 54 flow. Second operand has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 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) [2022-12-13 12:49:55,001 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:49:55,001 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 209 [2022-12-13 12:49:55,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:49:55,117 INFO L130 PetriNetUnfolder]: 249/438 cut-off events. [2022-12-13 12:49:55,118 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 12:49:55,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 878 conditions, 438 events. 249/438 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1722 event pairs, 249 based on Foata normal form. 0/354 useless extension candidates. Maximal degree in co-relation 868. Up to 427 conditions per place. [2022-12-13 12:49:55,121 INFO L137 encePairwiseOnDemand]: 204/209 looper letters, 18 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2022-12-13 12:49:55,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 19 transitions, 80 flow [2022-12-13 12:49:55,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:49:55,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:49:55,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 217 transitions. [2022-12-13 12:49:55,131 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5191387559808612 [2022-12-13 12:49:55,131 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 217 transitions. [2022-12-13 12:49:55,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 217 transitions. [2022-12-13 12:49:55,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:49:55,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 217 transitions. [2022-12-13 12:49:55,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 108.5) internal successors, (217), 2 states have internal predecessors, (217), 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) [2022-12-13 12:49:55,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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) [2022-12-13 12:49:55,140 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 209.0) internal successors, (627), 3 states have internal predecessors, (627), 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) [2022-12-13 12:49:55,141 INFO L175 Difference]: Start difference. First operand has 30 places, 24 transitions, 54 flow. Second operand 2 states and 217 transitions. [2022-12-13 12:49:55,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 19 transitions, 80 flow [2022-12-13 12:49:55,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 19 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:49:55,145 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 42 flow [2022-12-13 12:49:55,146 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=42, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2022-12-13 12:49:55,148 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, -5 predicate places. [2022-12-13 12:49:55,148 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 42 flow [2022-12-13 12:49:55,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 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) [2022-12-13 12:49:55,149 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:49:55,149 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 12:49:55,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:49:55,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:49:55,351 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-13 12:49:55,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:49:55,353 INFO L85 PathProgramCache]: Analyzing trace with hash 432200964, now seen corresponding path program 1 times [2022-12-13 12:49:55,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:49:55,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2029867139] [2022-12-13 12:49:55,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:49:55,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:49:55,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:49:55,359 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 12:49:55,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 12:49:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:49:55,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:49:55,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:49:55,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:49:55,612 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:49:55,612 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:49:55,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2029867139] [2022-12-13 12:49:55,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2029867139] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:49:55,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:49:55,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 12:49:55,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049704172] [2022-12-13 12:49:55,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:49:55,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:49:55,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:49:55,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:49:55,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:49:55,617 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 209 [2022-12-13 12:49:55,617 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 42 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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) [2022-12-13 12:49:55,618 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:49:55,618 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 209 [2022-12-13 12:49:55,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:49:55,731 INFO L130 PetriNetUnfolder]: 204/381 cut-off events. [2022-12-13 12:49:55,732 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:49:55,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 747 conditions, 381 events. 204/381 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1555 event pairs, 24 based on Foata normal form. 0/341 useless extension candidates. Maximal degree in co-relation 744. Up to 293 conditions per place. [2022-12-13 12:49:55,734 INFO L137 encePairwiseOnDemand]: 206/209 looper letters, 22 selfloop transitions, 2 changer transitions 2/27 dead transitions. [2022-12-13 12:49:55,735 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 27 transitions, 110 flow [2022-12-13 12:49:55,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:49:55,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:49:55,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 315 transitions. [2022-12-13 12:49:55,738 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5023923444976076 [2022-12-13 12:49:55,738 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 315 transitions. [2022-12-13 12:49:55,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 315 transitions. [2022-12-13 12:49:55,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:49:55,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 315 transitions. [2022-12-13 12:49:55,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 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) [2022-12-13 12:49:55,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2022-12-13 12:49:55,743 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 209.0) internal successors, (836), 4 states have internal predecessors, (836), 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) [2022-12-13 12:49:55,743 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 42 flow. Second operand 3 states and 315 transitions. [2022-12-13 12:49:55,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 27 transitions, 110 flow [2022-12-13 12:49:55,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 27 transitions, 110 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:49:55,744 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 42 flow [2022-12-13 12:49:55,745 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=42, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2022-12-13 12:49:55,745 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, -4 predicate places. [2022-12-13 12:49:55,745 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 42 flow [2022-12-13 12:49:55,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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) [2022-12-13 12:49:55,746 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:49:55,746 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:49:55,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 12:49:55,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:49:55,947 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-13 12:49:55,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:49:55,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1266646959, now seen corresponding path program 1 times [2022-12-13 12:49:55,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:49:55,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318591974] [2022-12-13 12:49:55,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:49:55,948 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:49:55,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:49:55,949 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 12:49:55,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 12:49:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:49:56,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:49:56,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:49:56,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:49:56,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:49:56,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:49:56,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318591974] [2022-12-13 12:49:56,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318591974] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:49:56,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:49:56,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:49:56,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262609332] [2022-12-13 12:49:56,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:49:56,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:49:56,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:49:56,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:49:56,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:49:56,054 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 209 [2022-12-13 12:49:56,055 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 42 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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) [2022-12-13 12:49:56,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:49:56,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 209 [2022-12-13 12:49:56,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:49:56,189 INFO L130 PetriNetUnfolder]: 76/168 cut-off events. [2022-12-13 12:49:56,189 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-12-13 12:49:56,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 361 conditions, 168 events. 76/168 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 579 event pairs, 15 based on Foata normal form. 20/180 useless extension candidates. Maximal degree in co-relation 357. Up to 94 conditions per place. [2022-12-13 12:49:56,191 INFO L137 encePairwiseOnDemand]: 204/209 looper letters, 22 selfloop transitions, 3 changer transitions 15/41 dead transitions. [2022-12-13 12:49:56,191 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 41 transitions, 178 flow [2022-12-13 12:49:56,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:49:56,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 12:49:56,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 507 transitions. [2022-12-13 12:49:56,195 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4851674641148325 [2022-12-13 12:49:56,195 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 507 transitions. [2022-12-13 12:49:56,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 507 transitions. [2022-12-13 12:49:56,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:49:56,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 507 transitions. [2022-12-13 12:49:56,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 101.4) internal successors, (507), 5 states have internal predecessors, (507), 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) [2022-12-13 12:49:56,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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) [2022-12-13 12:49:56,202 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 209.0) internal successors, (1254), 6 states have internal predecessors, (1254), 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) [2022-12-13 12:49:56,202 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 42 flow. Second operand 5 states and 507 transitions. [2022-12-13 12:49:56,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 41 transitions, 178 flow [2022-12-13 12:49:56,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 41 transitions, 168 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:49:56,204 INFO L231 Difference]: Finished difference. Result has 30 places, 19 transitions, 65 flow [2022-12-13 12:49:56,204 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=65, PETRI_PLACES=30, PETRI_TRANSITIONS=19} [2022-12-13 12:49:56,204 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 0 predicate places. [2022-12-13 12:49:56,204 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 19 transitions, 65 flow [2022-12-13 12:49:56,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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) [2022-12-13 12:49:56,205 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:49:56,205 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:49:56,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-12-13 12:49:56,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:49:56,406 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-13 12:49:56,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:49:56,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1238870766, now seen corresponding path program 1 times [2022-12-13 12:49:56,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:49:56,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1017038322] [2022-12-13 12:49:56,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:49:56,407 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:49:56,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:49:56,409 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 12:49:56,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 12:49:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:49:56,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:49:56,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:49:56,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:49:56,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:49:56,510 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:49:56,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1017038322] [2022-12-13 12:49:56,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1017038322] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:49:56,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:49:56,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:49:56,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268679574] [2022-12-13 12:49:56,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:49:56,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:49:56,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:49:56,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:49:56,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:49:56,532 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 209 [2022-12-13 12:49:56,533 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 19 transitions, 65 flow. Second operand has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 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) [2022-12-13 12:49:56,533 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:49:56,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 209 [2022-12-13 12:49:56,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:49:56,667 INFO L130 PetriNetUnfolder]: 24/69 cut-off events. [2022-12-13 12:49:56,668 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-13 12:49:56,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 69 events. 24/69 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 152 event pairs, 10 based on Foata normal form. 8/76 useless extension candidates. Maximal degree in co-relation 182. Up to 29 conditions per place. [2022-12-13 12:49:56,668 INFO L137 encePairwiseOnDemand]: 204/209 looper letters, 20 selfloop transitions, 5 changer transitions 8/34 dead transitions. [2022-12-13 12:49:56,668 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 34 transitions, 173 flow [2022-12-13 12:49:56,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:49:56,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 12:49:56,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 593 transitions. [2022-12-13 12:49:56,670 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4728867623604466 [2022-12-13 12:49:56,670 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 593 transitions. [2022-12-13 12:49:56,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 593 transitions. [2022-12-13 12:49:56,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:49:56,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 593 transitions. [2022-12-13 12:49:56,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 98.83333333333333) internal successors, (593), 6 states have internal predecessors, (593), 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) [2022-12-13 12:49:56,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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) [2022-12-13 12:49:56,674 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 209.0) internal successors, (1463), 7 states have internal predecessors, (1463), 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) [2022-12-13 12:49:56,674 INFO L175 Difference]: Start difference. First operand has 30 places, 19 transitions, 65 flow. Second operand 6 states and 593 transitions. [2022-12-13 12:49:56,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 34 transitions, 173 flow [2022-12-13 12:49:56,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 34 transitions, 160 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-12-13 12:49:56,675 INFO L231 Difference]: Finished difference. Result has 34 places, 19 transitions, 76 flow [2022-12-13 12:49:56,675 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=76, PETRI_PLACES=34, PETRI_TRANSITIONS=19} [2022-12-13 12:49:56,675 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 4 predicate places. [2022-12-13 12:49:56,676 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 19 transitions, 76 flow [2022-12-13 12:49:56,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 95.0) internal successors, (475), 5 states have internal predecessors, (475), 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) [2022-12-13 12:49:56,676 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:49:56,676 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:49:56,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-13 12:49:56,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:49:56,877 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-13 12:49:56,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:49:56,878 INFO L85 PathProgramCache]: Analyzing trace with hash 15044279, now seen corresponding path program 1 times [2022-12-13 12:49:56,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:49:56,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847020892] [2022-12-13 12:49:56,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:49:56,879 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:49:56,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:49:56,879 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 12:49:56,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 12:49:56,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:49:56,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:49:56,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:49:56,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:49:56,978 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:49:56,978 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:49:56,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847020892] [2022-12-13 12:49:56,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [847020892] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:49:56,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:49:56,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:49:56,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712712561] [2022-12-13 12:49:56,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:49:56,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:49:56,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:49:56,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:49:56,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:49:56,990 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 209 [2022-12-13 12:49:56,991 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 19 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 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) [2022-12-13 12:49:56,991 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:49:56,991 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 209 [2022-12-13 12:49:56,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:49:57,086 INFO L130 PetriNetUnfolder]: 24/75 cut-off events. [2022-12-13 12:49:57,087 INFO L131 PetriNetUnfolder]: For 62/62 co-relation queries the response was YES. [2022-12-13 12:49:57,087 INFO L83 FinitePrefix]: Finished finitePrefix Result has 221 conditions, 75 events. 24/75 cut-off events. For 62/62 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 188 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 212. Up to 47 conditions per place. [2022-12-13 12:49:57,088 INFO L137 encePairwiseOnDemand]: 206/209 looper letters, 34 selfloop transitions, 2 changer transitions 0/36 dead transitions. [2022-12-13 12:49:57,088 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 36 transitions, 219 flow [2022-12-13 12:49:57,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:49:57,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 12:49:57,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 405 transitions. [2022-12-13 12:49:57,090 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48444976076555024 [2022-12-13 12:49:57,090 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 405 transitions. [2022-12-13 12:49:57,090 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 405 transitions. [2022-12-13 12:49:57,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:49:57,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 405 transitions. [2022-12-13 12:49:57,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 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) [2022-12-13 12:49:57,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 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) [2022-12-13 12:49:57,093 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 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) [2022-12-13 12:49:57,093 INFO L175 Difference]: Start difference. First operand has 34 places, 19 transitions, 76 flow. Second operand 4 states and 405 transitions. [2022-12-13 12:49:57,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 36 transitions, 219 flow [2022-12-13 12:49:57,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 36 transitions, 188 flow, removed 10 selfloop flow, removed 5 redundant places. [2022-12-13 12:49:57,094 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 73 flow [2022-12-13 12:49:57,094 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=73, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2022-12-13 12:49:57,095 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 2 predicate places. [2022-12-13 12:49:57,095 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 73 flow [2022-12-13 12:49:57,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.75) internal successors, (387), 4 states have internal predecessors, (387), 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) [2022-12-13 12:49:57,095 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:49:57,095 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:49:57,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 12:49:57,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:49:57,297 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-13 12:49:57,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:49:57,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1870806153, now seen corresponding path program 2 times [2022-12-13 12:49:57,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:49:57,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10080751] [2022-12-13 12:49:57,300 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:49:57,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:49:57,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:49:57,303 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 12:49:57,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-13 12:49:57,408 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 12:49:57,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:49:57,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 12:49:57,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:49:57,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:49:57,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:49:57,510 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:49:57,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10080751] [2022-12-13 12:49:57,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [10080751] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:49:57,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:49:57,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:49:57,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733703410] [2022-12-13 12:49:57,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:49:57,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:49:57,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:49:57,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:49:57,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:49:57,531 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 209 [2022-12-13 12:49:57,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 73 flow. Second operand has 6 states, 6 states have (on average 93.33333333333333) internal successors, (560), 6 states have internal predecessors, (560), 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) [2022-12-13 12:49:57,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:49:57,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 209 [2022-12-13 12:49:57,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:49:57,635 INFO L130 PetriNetUnfolder]: 22/89 cut-off events. [2022-12-13 12:49:57,635 INFO L131 PetriNetUnfolder]: For 58/58 co-relation queries the response was YES. [2022-12-13 12:49:57,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 89 events. 22/89 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 258 event pairs, 6 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 251. Up to 26 conditions per place. [2022-12-13 12:49:57,636 INFO L137 encePairwiseOnDemand]: 203/209 looper letters, 26 selfloop transitions, 6 changer transitions 0/34 dead transitions. [2022-12-13 12:49:57,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 34 transitions, 195 flow [2022-12-13 12:49:57,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:49:57,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 12:49:57,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 666 transitions. [2022-12-13 12:49:57,638 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.45522898154477104 [2022-12-13 12:49:57,638 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 666 transitions. [2022-12-13 12:49:57,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 666 transitions. [2022-12-13 12:49:57,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 12:49:57,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 666 transitions. [2022-12-13 12:49:57,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 95.14285714285714) internal successors, (666), 7 states have internal predecessors, (666), 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) [2022-12-13 12:49:57,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 209.0) internal successors, (1672), 8 states have internal predecessors, (1672), 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) [2022-12-13 12:49:57,640 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 209.0) internal successors, (1672), 8 states have internal predecessors, (1672), 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) [2022-12-13 12:49:57,641 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 73 flow. Second operand 7 states and 666 transitions. [2022-12-13 12:49:57,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 34 transitions, 195 flow [2022-12-13 12:49:57,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 34 transitions, 192 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:49:57,642 INFO L231 Difference]: Finished difference. Result has 39 places, 22 transitions, 96 flow [2022-12-13 12:49:57,642 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=209, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=96, PETRI_PLACES=39, PETRI_TRANSITIONS=22} [2022-12-13 12:49:57,643 INFO L288 CegarLoopForPetriNet]: 30 programPoint places, 9 predicate places. [2022-12-13 12:49:57,643 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 22 transitions, 96 flow [2022-12-13 12:49:57,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 93.33333333333333) internal successors, (560), 6 states have internal predecessors, (560), 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) [2022-12-13 12:49:57,644 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:49:57,644 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:49:57,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-13 12:49:57,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:49:57,845 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [P1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 7 more)] === [2022-12-13 12:49:57,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:49:57,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1318884805, now seen corresponding path program 3 times [2022-12-13 12:49:57,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:49:57,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1897925011] [2022-12-13 12:49:57,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 12:49:57,846 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:49:57,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:49:57,847 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 12:49:57,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-13 12:49:58,033 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-13 12:49:58,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-12-13 12:49:58,034 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:49:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:49:58,112 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 12:49:58,112 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:49:58,113 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (9 of 10 remaining) [2022-12-13 12:49:58,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 10 remaining) [2022-12-13 12:49:58,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 10 remaining) [2022-12-13 12:49:58,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 10 remaining) [2022-12-13 12:49:58,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 10 remaining) [2022-12-13 12:49:58,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 10 remaining) [2022-12-13 12:49:58,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (3 of 10 remaining) [2022-12-13 12:49:58,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 10 remaining) [2022-12-13 12:49:58,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 10 remaining) [2022-12-13 12:49:58,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 10 remaining) [2022-12-13 12:49:58,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-13 12:49:58,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:49:58,316 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2022-12-13 12:49:58,323 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 12:49:58,323 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:49:58,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:49:58 BasicIcfg [2022-12-13 12:49:58,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:49:58,371 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:49:58,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:49:58,371 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:49:58,372 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:49:50" (3/4) ... [2022-12-13 12:49:58,374 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:49:58,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:49:58,374 INFO L158 Benchmark]: Toolchain (without parser) took 9182.30ms. Allocated memory was 77.6MB in the beginning and 123.7MB in the end (delta: 46.1MB). Free memory was 53.9MB in the beginning and 94.1MB in the end (delta: -40.1MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-12-13 12:49:58,375 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 77.6MB. Free memory is still 55.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:49:58,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.06ms. Allocated memory is still 77.6MB. Free memory was 53.6MB in the beginning and 28.1MB in the end (delta: 25.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 12:49:58,375 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.85ms. Allocated memory was 77.6MB in the beginning and 102.8MB in the end (delta: 25.2MB). Free memory was 28.1MB in the beginning and 80.1MB in the end (delta: -52.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 12:49:58,375 INFO L158 Benchmark]: Boogie Preprocessor took 29.74ms. Allocated memory is still 102.8MB. Free memory was 80.1MB in the beginning and 78.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:49:58,376 INFO L158 Benchmark]: RCFGBuilder took 534.67ms. Allocated memory is still 102.8MB. Free memory was 78.0MB in the beginning and 75.7MB in the end (delta: 2.3MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2022-12-13 12:49:58,376 INFO L158 Benchmark]: TraceAbstraction took 8106.69ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 75.1MB in the beginning and 94.1MB in the end (delta: -18.9MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. [2022-12-13 12:49:58,376 INFO L158 Benchmark]: Witness Printer took 2.79ms. Allocated memory is still 123.7MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:49:58,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 77.6MB. Free memory is still 55.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.06ms. Allocated memory is still 77.6MB. Free memory was 53.6MB in the beginning and 28.1MB in the end (delta: 25.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.85ms. Allocated memory was 77.6MB in the beginning and 102.8MB in the end (delta: 25.2MB). Free memory was 28.1MB in the beginning and 80.1MB in the end (delta: -52.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.74ms. Allocated memory is still 102.8MB. Free memory was 80.1MB in the beginning and 78.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 534.67ms. Allocated memory is still 102.8MB. Free memory was 78.0MB in the beginning and 75.7MB in the end (delta: 2.3MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8106.69ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 75.1MB in the beginning and 94.1MB in the end (delta: -18.9MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. * Witness Printer took 2.79ms. Allocated memory is still 123.7MB. Free memory is still 94.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 110 PlacesBefore, 30 PlacesAfterwards, 105 TransitionsBefore, 24 TransitionsAfterwards, 1316 CoEnabledTransitionPairs, 6 FixpointIterations, 48 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 102 TotalNumberOfCompositions, 2917 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1622, independent: 1506, independent conditional: 0, independent unconditional: 1506, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 748, independent: 721, independent conditional: 0, independent unconditional: 721, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1622, independent: 785, independent conditional: 0, independent unconditional: 785, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 748, unknown conditional: 0, unknown unconditional: 748] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L720] 0 _Bool x$flush_delayed; [L721] 0 int x$mem_tmp; [L722] 0 _Bool x$r_buff0_thd0; [L723] 0 _Bool x$r_buff0_thd1; [L724] 0 _Bool x$r_buff0_thd2; [L725] 0 _Bool x$r_buff1_thd0; [L726] 0 _Bool x$r_buff1_thd1; [L727] 0 _Bool x$r_buff1_thd2; [L728] 0 _Bool x$read_delayed; [L729] 0 int *x$read_delayed_var; [L730] 0 int x$w_buff0; [L731] 0 _Bool x$w_buff0_used; [L732] 0 int x$w_buff1; [L733] 0 _Bool x$w_buff1_used; [L735] 0 int y = 0; [L737] 0 int z = 0; [L738] 0 _Bool weak$$choice0; [L739] 0 _Bool weak$$choice2; [L813] 0 pthread_t t903; [L814] FCALL, FORK 0 pthread_create(&t903, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t903, ((void *)0), P0, ((void *)0))=-1, t903={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L815] 0 pthread_t t904; [L816] FCALL, FORK 0 pthread_create(&t904, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t904, ((void *)0), P1, ((void *)0))=0, t903={3:0}, t904={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L771] 2 x$w_buff1 = x$w_buff0 [L772] 2 x$w_buff0 = 1 [L773] 2 x$w_buff1_used = x$w_buff0_used [L774] 2 x$w_buff0_used = (_Bool)1 [L775] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L775] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L776] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L777] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L778] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L779] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0, z=0] [L782] 2 y = 1 [L785] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L788] 2 __unbuffered_p1_EBX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=0] [L743] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L746] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L747] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L748] 1 x$flush_delayed = weak$$choice2 [L749] 1 x$mem_tmp = x [L750] 1 x = !x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff1) [L751] 1 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : x$w_buff0)) [L752] 1 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff1 : x$w_buff1)) [L753] 1 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used)) [L754] 1 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L755] 1 x$r_buff0_thd1 = weak$$choice2 ? x$r_buff0_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff0_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1)) [L756] 1 x$r_buff1_thd1 = weak$$choice2 ? x$r_buff1_thd1 : (!x$w_buff0_used || !x$r_buff0_thd1 && !x$w_buff1_used || !x$r_buff0_thd1 && !x$r_buff1_thd1 ? x$r_buff1_thd1 : (x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L757] 1 __unbuffered_p0_EAX = x [L758] 1 x = x$flush_delayed ? x$mem_tmp : x [L759] 1 x$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L766] 1 return 0; [L791] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L792] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L793] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L794] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L795] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L798] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L800] 2 return 0; [L818] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L820] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L820] RET 0 assume_abort_if_not(main$tmp_guard0) [L822] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L823] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L824] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L825] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L826] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t903={3:0}, t904={7:0}, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] [L829] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) [L831] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=1, z=1] - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 811]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 816]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 814]: 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 5 procedures, 126 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 429 IncrementalHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 7 mSDtfsCounter, 429 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=6, InterpolantAutomatonStates: 27, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 190 SizeOfPredicates, 9 NumberOfNonLiveVariables, 536 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 could not prove your program: unable to determine feasibility of some traces [2022-12-13 12:49:58,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d3ab221-0e22-48b6-a4d9-6e922eac07c1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample