./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe012_tso.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_e938dee6-1a50-41e7-9571-468733a439f2/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938dee6-1a50-41e7-9571-468733a439f2/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_e938dee6-1a50-41e7-9571-468733a439f2/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938dee6-1a50-41e7-9571-468733a439f2/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe012_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938dee6-1a50-41e7-9571-468733a439f2/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_e938dee6-1a50-41e7-9571-468733a439f2/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 8ab6224550afdc7bd147a853b67470808fdf25e83f86b697677572dc7a8a62dd --- 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 19:11:48,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:11:48,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:11:48,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:11:48,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:11:48,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:11:48,984 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:11:48,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:11:48,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:11:48,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:11:48,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:11:48,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:11:48,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:11:48,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:11:48,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:11:48,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:11:48,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:11:48,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:11:48,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:11:48,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:11:48,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:11:49,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:11:49,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:11:49,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:11:49,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:11:49,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:11:49,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:11:49,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:11:49,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:11:49,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:11:49,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:11:49,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:11:49,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:11:49,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:11:49,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:11:49,007 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:11:49,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:11:49,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:11:49,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:11:49,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:11:49,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:11:49,010 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938dee6-1a50-41e7-9571-468733a439f2/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 19:11:49,023 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:11:49,024 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:11:49,024 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:11:49,024 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:11:49,024 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:11:49,025 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:11:49,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:11:49,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:11:49,025 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:11:49,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:11:49,025 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:11:49,026 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:11:49,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:11:49,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:11:49,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:11:49,026 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 19:11:49,026 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 19:11:49,026 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 19:11:49,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:11:49,026 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 19:11:49,026 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:11:49,027 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:11:49,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:11:49,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:11:49,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:11:49,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:11:49,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:11:49,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:11:49,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:11:49,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:11:49,028 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:11:49,028 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:11:49,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:11:49,028 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:11:49,028 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_e938dee6-1a50-41e7-9571-468733a439f2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938dee6-1a50-41e7-9571-468733a439f2/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ab6224550afdc7bd147a853b67470808fdf25e83f86b697677572dc7a8a62dd [2022-12-13 19:11:49,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:11:49,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:11:49,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:11:49,238 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:11:49,238 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:11:49,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938dee6-1a50-41e7-9571-468733a439f2/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/safe012_tso.i [2022-12-13 19:11:51,884 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:11:52,042 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:11:52,042 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938dee6-1a50-41e7-9571-468733a439f2/sv-benchmarks/c/pthread-wmm/safe012_tso.i [2022-12-13 19:11:52,052 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938dee6-1a50-41e7-9571-468733a439f2/bin/uautomizer-uyxdKDjOR8/data/2de7b3e4e/5de584fbd6804349a175a38dd90b1253/FLAG869b423e5 [2022-12-13 19:11:52,062 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938dee6-1a50-41e7-9571-468733a439f2/bin/uautomizer-uyxdKDjOR8/data/2de7b3e4e/5de584fbd6804349a175a38dd90b1253 [2022-12-13 19:11:52,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:11:52,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:11:52,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:11:52,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:11:52,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:11:52,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:11:52" (1/1) ... [2022-12-13 19:11:52,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca0f30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:11:52, skipping insertion in model container [2022-12-13 19:11:52,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:11:52" (1/1) ... [2022-12-13 19:11:52,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:11:52,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:11:52,210 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_e938dee6-1a50-41e7-9571-468733a439f2/sv-benchmarks/c/pthread-wmm/safe012_tso.i[945,958] [2022-12-13 19:11:52,307 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,311 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:11:52,328 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:11:52,337 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_e938dee6-1a50-41e7-9571-468733a439f2/sv-benchmarks/c/pthread-wmm/safe012_tso.i[945,958] [2022-12-13 19:11:52,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,352 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,353 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,354 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,355 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,356 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,358 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,359 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:11:52,360 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:11:52,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:11:52,380 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:11:52,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:11:52 WrapperNode [2022-12-13 19:11:52,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:11:52,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:11:52,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:11:52,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:11:52,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:11:52" (1/1) ... [2022-12-13 19:11:52,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:11:52" (1/1) ... [2022-12-13 19:11:52,410 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-12-13 19:11:52,410 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:11:52,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:11:52,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:11:52,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:11:52,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:11:52" (1/1) ... [2022-12-13 19:11:52,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:11:52" (1/1) ... [2022-12-13 19:11:52,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:11:52" (1/1) ... [2022-12-13 19:11:52,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:11:52" (1/1) ... [2022-12-13 19:11:52,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:11:52" (1/1) ... [2022-12-13 19:11:52,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:11:52" (1/1) ... [2022-12-13 19:11:52,425 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:11:52" (1/1) ... [2022-12-13 19:11:52,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:11:52" (1/1) ... [2022-12-13 19:11:52,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:11:52,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:11:52,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:11:52,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:11:52,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:11:52" (1/1) ... [2022-12-13 19:11:52,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:11:52,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938dee6-1a50-41e7-9571-468733a439f2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:11:52,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938dee6-1a50-41e7-9571-468733a439f2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:11:52,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938dee6-1a50-41e7-9571-468733a439f2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:11:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 19:11:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 19:11:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:11:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:11:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:11:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 19:11:52,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 19:11:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 19:11:52,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 19:11:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 19:11:52,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 19:11:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:11:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 19:11:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:11:52,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:11:52,494 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 19:11:52,585 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:11:52,587 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:11:52,730 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:11:52,736 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:11:52,737 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:11:52,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:11:52 BoogieIcfgContainer [2022-12-13 19:11:52,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:11:52,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:11:52,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:11:52,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:11:52,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:11:52" (1/3) ... [2022-12-13 19:11:52,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82b977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:11:52, skipping insertion in model container [2022-12-13 19:11:52,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:11:52" (2/3) ... [2022-12-13 19:11:52,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@82b977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:11:52, skipping insertion in model container [2022-12-13 19:11:52,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:11:52" (3/3) ... [2022-12-13 19:11:52,748 INFO L112 eAbstractionObserver]: Analyzing ICFG safe012_tso.i [2022-12-13 19:11:52,767 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:11:52,767 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 19:11:52,767 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 19:11:52,813 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 19:11:52,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 111 places, 103 transitions, 221 flow [2022-12-13 19:11:52,878 INFO L130 PetriNetUnfolder]: 2/100 cut-off events. [2022-12-13 19:11:52,879 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:11:52,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 100 events. 2/100 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. 0/90 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-12-13 19:11:52,882 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 103 transitions, 221 flow [2022-12-13 19:11:52,885 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 103 places, 95 transitions, 199 flow [2022-12-13 19:11:52,888 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 19:11:52,895 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 95 transitions, 199 flow [2022-12-13 19:11:52,897 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 95 transitions, 199 flow [2022-12-13 19:11:52,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 95 transitions, 199 flow [2022-12-13 19:11:52,913 INFO L130 PetriNetUnfolder]: 2/95 cut-off events. [2022-12-13 19:11:52,913 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:11:52,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 95 events. 2/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-12-13 19:11:52,915 INFO L119 LiptonReduction]: Number of co-enabled transitions 1620 [2022-12-13 19:11:54,806 INFO L134 LiptonReduction]: Checked pairs total: 3171 [2022-12-13 19:11:54,806 INFO L136 LiptonReduction]: Total number of compositions: 95 [2022-12-13 19:11:54,818 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:11:54,823 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;@2e7722df, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:11:54,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-12-13 19:11:54,824 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 19:11:54,824 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:11:54,824 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:11:54,824 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 19:11:54,825 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 19:11:54,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:11:54,828 INFO L85 PathProgramCache]: Analyzing trace with hash 361, now seen corresponding path program 1 times [2022-12-13 19:11:54,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:11:54,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593169625] [2022-12-13 19:11:54,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:11:54,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:11:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:54,911 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 19:11:54,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:11:54,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593169625] [2022-12-13 19:11:54,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593169625] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:11:54,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:11:54,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 19:11:54,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908559585] [2022-12-13 19:11:54,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:11:54,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 19:11:54,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:11:54,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 19:11:54,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:11:54,937 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 198 [2022-12-13 19:11:54,938 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 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 19:11:54,938 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:11:54,939 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 198 [2022-12-13 19:11:54,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:11:55,012 INFO L130 PetriNetUnfolder]: 272/458 cut-off events. [2022-12-13 19:11:55,013 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 19:11:55,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 921 conditions, 458 events. 272/458 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1995 event pairs, 272 based on Foata normal form. 0/418 useless extension candidates. Maximal degree in co-relation 910. Up to 433 conditions per place. [2022-12-13 19:11:55,016 INFO L137 encePairwiseOnDemand]: 191/198 looper letters, 16 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2022-12-13 19:11:55,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 19 transitions, 79 flow [2022-12-13 19:11:55,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 19:11:55,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 19:11:55,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 217 transitions. [2022-12-13 19:11:55,026 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.547979797979798 [2022-12-13 19:11:55,026 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 217 transitions. [2022-12-13 19:11:55,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 217 transitions. [2022-12-13 19:11:55,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:11:55,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 217 transitions. [2022-12-13 19:11:55,031 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 19:11:55,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 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 19:11:55,034 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 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 19:11:55,036 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 2 states and 217 transitions. [2022-12-13 19:11:55,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 19 transitions, 79 flow [2022-12-13 19:11:55,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 76 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 19:11:55,039 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 44 flow [2022-12-13 19:11:55,040 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, 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=44, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2022-12-13 19:11:55,043 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2022-12-13 19:11:55,043 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 44 flow [2022-12-13 19:11:55,043 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 19:11:55,043 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:11:55,043 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:11:55,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:11:55,043 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 19:11:55,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:11:55,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1458182472, now seen corresponding path program 1 times [2022-12-13 19:11:55,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:11:55,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089689090] [2022-12-13 19:11:55,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:11:55,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:11:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:55,529 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 19:11:55,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:11:55,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089689090] [2022-12-13 19:11:55,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089689090] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:11:55,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:11:55,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:11:55,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979506120] [2022-12-13 19:11:55,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:11:55,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:11:55,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:11:55,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:11:55,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:11:55,664 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 198 [2022-12-13 19:11:55,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 44 flow. Second operand has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 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 19:11:55,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:11:55,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 198 [2022-12-13 19:11:55,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:11:55,769 INFO L130 PetriNetUnfolder]: 218/390 cut-off events. [2022-12-13 19:11:55,769 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:11:55,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 390 events. 218/390 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1699 event pairs, 3 based on Foata normal form. 0/390 useless extension candidates. Maximal degree in co-relation 767. Up to 222 conditions per place. [2022-12-13 19:11:55,772 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 24 selfloop transitions, 4 changer transitions 0/31 dead transitions. [2022-12-13 19:11:55,772 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 31 transitions, 124 flow [2022-12-13 19:11:55,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:11:55,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:11:55,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 522 transitions. [2022-12-13 19:11:55,776 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4393939393939394 [2022-12-13 19:11:55,776 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 522 transitions. [2022-12-13 19:11:55,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 522 transitions. [2022-12-13 19:11:55,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:11:55,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 522 transitions. [2022-12-13 19:11:55,780 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.0) internal successors, (522), 6 states have internal predecessors, (522), 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 19:11:55,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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 19:11:55,784 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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 19:11:55,784 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 44 flow. Second operand 6 states and 522 transitions. [2022-12-13 19:11:55,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 31 transitions, 124 flow [2022-12-13 19:11:55,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 31 transitions, 124 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 19:11:55,785 INFO L231 Difference]: Finished difference. Result has 31 places, 18 transitions, 50 flow [2022-12-13 19:11:55,785 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=50, PETRI_PLACES=31, PETRI_TRANSITIONS=18} [2022-12-13 19:11:55,786 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -4 predicate places. [2022-12-13 19:11:55,786 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 18 transitions, 50 flow [2022-12-13 19:11:55,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.5) internal successors, (501), 6 states have internal predecessors, (501), 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 19:11:55,786 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:11:55,786 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:11:55,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:11:55,787 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 19:11:55,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:11:55,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1458182428, now seen corresponding path program 1 times [2022-12-13 19:11:55,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:11:55,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841350267] [2022-12-13 19:11:55,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:11:55,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:11:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:55,883 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 19:11:55,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:11:55,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841350267] [2022-12-13 19:11:55,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841350267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:11:55,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:11:55,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:11:55,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759707388] [2022-12-13 19:11:55,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:11:55,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:11:55,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:11:55,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:11:55,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:11:55,905 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 198 [2022-12-13 19:11:55,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 18 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 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 19:11:55,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:11:55,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 198 [2022-12-13 19:11:55,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:11:56,020 INFO L130 PetriNetUnfolder]: 331/564 cut-off events. [2022-12-13 19:11:56,021 INFO L131 PetriNetUnfolder]: For 65/65 co-relation queries the response was YES. [2022-12-13 19:11:56,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1211 conditions, 564 events. 331/564 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2584 event pairs, 161 based on Foata normal form. 36/599 useless extension candidates. Maximal degree in co-relation 1207. Up to 440 conditions per place. [2022-12-13 19:11:56,024 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 22 selfloop transitions, 3 changer transitions 12/39 dead transitions. [2022-12-13 19:11:56,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 39 transitions, 180 flow [2022-12-13 19:11:56,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:11:56,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:11:56,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 489 transitions. [2022-12-13 19:11:56,026 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49393939393939396 [2022-12-13 19:11:56,026 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 489 transitions. [2022-12-13 19:11:56,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 489 transitions. [2022-12-13 19:11:56,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:11:56,027 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 489 transitions. [2022-12-13 19:11:56,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 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 19:11:56,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 19:11:56,030 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 19:11:56,030 INFO L175 Difference]: Start difference. First operand has 31 places, 18 transitions, 50 flow. Second operand 5 states and 489 transitions. [2022-12-13 19:11:56,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 39 transitions, 180 flow [2022-12-13 19:11:56,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 39 transitions, 166 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 19:11:56,031 INFO L231 Difference]: Finished difference. Result has 34 places, 20 transitions, 71 flow [2022-12-13 19:11:56,031 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=71, PETRI_PLACES=34, PETRI_TRANSITIONS=20} [2022-12-13 19:11:56,031 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2022-12-13 19:11:56,031 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 20 transitions, 71 flow [2022-12-13 19:11:56,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 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 19:11:56,032 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:11:56,032 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:11:56,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 19:11:56,032 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 19:11:56,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:11:56,032 INFO L85 PathProgramCache]: Analyzing trace with hash -2041036568, now seen corresponding path program 1 times [2022-12-13 19:11:56,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:11:56,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104553081] [2022-12-13 19:11:56,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:11:56,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:11:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:56,110 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 19:11:56,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:11:56,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104553081] [2022-12-13 19:11:56,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104553081] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:11:56,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:11:56,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:11:56,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744715860] [2022-12-13 19:11:56,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:11:56,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:11:56,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:11:56,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:11:56,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:11:56,125 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 198 [2022-12-13 19:11:56,125 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 20 transitions, 71 flow. Second operand has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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 19:11:56,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:11:56,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 198 [2022-12-13 19:11:56,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:11:56,253 INFO L130 PetriNetUnfolder]: 286/501 cut-off events. [2022-12-13 19:11:56,253 INFO L131 PetriNetUnfolder]: For 190/190 co-relation queries the response was YES. [2022-12-13 19:11:56,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1234 conditions, 501 events. 286/501 cut-off events. For 190/190 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2285 event pairs, 83 based on Foata normal form. 45/542 useless extension candidates. Maximal degree in co-relation 1227. Up to 138 conditions per place. [2022-12-13 19:11:56,255 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 20 selfloop transitions, 3 changer transitions 22/47 dead transitions. [2022-12-13 19:11:56,255 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 47 transitions, 236 flow [2022-12-13 19:11:56,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:11:56,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 19:11:56,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 690 transitions. [2022-12-13 19:11:56,258 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49783549783549785 [2022-12-13 19:11:56,258 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 690 transitions. [2022-12-13 19:11:56,258 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 690 transitions. [2022-12-13 19:11:56,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:11:56,259 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 690 transitions. [2022-12-13 19:11:56,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 98.57142857142857) internal successors, (690), 7 states have internal predecessors, (690), 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 19:11:56,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 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 19:11:56,264 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 198.0) internal successors, (1584), 8 states have internal predecessors, (1584), 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 19:11:56,264 INFO L175 Difference]: Start difference. First operand has 34 places, 20 transitions, 71 flow. Second operand 7 states and 690 transitions. [2022-12-13 19:11:56,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 47 transitions, 236 flow [2022-12-13 19:11:56,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 47 transitions, 219 flow, removed 7 selfloop flow, removed 2 redundant places. [2022-12-13 19:11:56,268 INFO L231 Difference]: Finished difference. Result has 41 places, 18 transitions, 73 flow [2022-12-13 19:11:56,268 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=73, PETRI_PLACES=41, PETRI_TRANSITIONS=18} [2022-12-13 19:11:56,268 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 6 predicate places. [2022-12-13 19:11:56,269 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 18 transitions, 73 flow [2022-12-13 19:11:56,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 94.0) internal successors, (470), 5 states have internal predecessors, (470), 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 19:11:56,269 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:11:56,269 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:11:56,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 19:11:56,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 19:11:56,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:11:56,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1362172491, now seen corresponding path program 1 times [2022-12-13 19:11:56,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:11:56,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820601664] [2022-12-13 19:11:56,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:11:56,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:11:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:56,393 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 19:11:56,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:11:56,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820601664] [2022-12-13 19:11:56,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820601664] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:11:56,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:11:56,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:11:56,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186112750] [2022-12-13 19:11:56,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:11:56,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:11:56,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:11:56,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:11:56,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:11:56,420 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 198 [2022-12-13 19:11:56,421 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 18 transitions, 73 flow. Second operand has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 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 19:11:56,421 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:11:56,421 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 198 [2022-12-13 19:11:56,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:11:56,523 INFO L130 PetriNetUnfolder]: 239/410 cut-off events. [2022-12-13 19:11:56,523 INFO L131 PetriNetUnfolder]: For 496/497 co-relation queries the response was YES. [2022-12-13 19:11:56,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1097 conditions, 410 events. 239/410 cut-off events. For 496/497 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1549 event pairs, 87 based on Foata normal form. 25/435 useless extension candidates. Maximal degree in co-relation 1086. Up to 141 conditions per place. [2022-12-13 19:11:56,525 INFO L137 encePairwiseOnDemand]: 193/198 looper letters, 19 selfloop transitions, 3 changer transitions 20/43 dead transitions. [2022-12-13 19:11:56,525 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 43 transitions, 234 flow [2022-12-13 19:11:56,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:11:56,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:11:56,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 572 transitions. [2022-12-13 19:11:56,527 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48148148148148145 [2022-12-13 19:11:56,528 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 572 transitions. [2022-12-13 19:11:56,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 572 transitions. [2022-12-13 19:11:56,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:11:56,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 572 transitions. [2022-12-13 19:11:56,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.33333333333333) internal successors, (572), 6 states have internal predecessors, (572), 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 19:11:56,532 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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 19:11:56,532 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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 19:11:56,532 INFO L175 Difference]: Start difference. First operand has 41 places, 18 transitions, 73 flow. Second operand 6 states and 572 transitions. [2022-12-13 19:11:56,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 43 transitions, 234 flow [2022-12-13 19:11:56,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 43 transitions, 207 flow, removed 7 selfloop flow, removed 8 redundant places. [2022-12-13 19:11:56,535 INFO L231 Difference]: Finished difference. Result has 39 places, 18 transitions, 73 flow [2022-12-13 19:11:56,535 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=55, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=73, PETRI_PLACES=39, PETRI_TRANSITIONS=18} [2022-12-13 19:11:56,536 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2022-12-13 19:11:56,536 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 18 transitions, 73 flow [2022-12-13 19:11:56,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.83333333333333) internal successors, (539), 6 states have internal predecessors, (539), 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 19:11:56,536 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:11:56,536 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:11:56,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 19:11:56,537 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 19:11:56,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:11:56,537 INFO L85 PathProgramCache]: Analyzing trace with hash -890502722, now seen corresponding path program 1 times [2022-12-13 19:11:56,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:11:56,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685104625] [2022-12-13 19:11:56,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:11:56,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:11:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:56,656 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 19:11:56,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:11:56,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685104625] [2022-12-13 19:11:56,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685104625] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:11:56,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:11:56,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:11:56,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363977907] [2022-12-13 19:11:56,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:11:56,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:11:56,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:11:56,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:11:56,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:11:56,666 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 198 [2022-12-13 19:11:56,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 18 transitions, 73 flow. Second operand has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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 19:11:56,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:11:56,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 198 [2022-12-13 19:11:56,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:11:56,711 INFO L130 PetriNetUnfolder]: 60/136 cut-off events. [2022-12-13 19:11:56,711 INFO L131 PetriNetUnfolder]: For 193/195 co-relation queries the response was YES. [2022-12-13 19:11:56,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 369 conditions, 136 events. 60/136 cut-off events. For 193/195 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 455 event pairs, 9 based on Foata normal form. 9/144 useless extension candidates. Maximal degree in co-relation 358. Up to 59 conditions per place. [2022-12-13 19:11:56,712 INFO L137 encePairwiseOnDemand]: 192/198 looper letters, 22 selfloop transitions, 5 changer transitions 1/31 dead transitions. [2022-12-13 19:11:56,712 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 31 transitions, 169 flow [2022-12-13 19:11:56,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:11:56,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 19:11:56,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 394 transitions. [2022-12-13 19:11:56,713 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49747474747474746 [2022-12-13 19:11:56,713 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 394 transitions. [2022-12-13 19:11:56,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 394 transitions. [2022-12-13 19:11:56,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:11:56,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 394 transitions. [2022-12-13 19:11:56,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 98.5) internal successors, (394), 4 states have internal predecessors, (394), 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 19:11:56,715 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 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 19:11:56,715 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 198.0) internal successors, (990), 5 states have internal predecessors, (990), 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 19:11:56,715 INFO L175 Difference]: Start difference. First operand has 39 places, 18 transitions, 73 flow. Second operand 4 states and 394 transitions. [2022-12-13 19:11:56,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 31 transitions, 169 flow [2022-12-13 19:11:56,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 31 transitions, 143 flow, removed 5 selfloop flow, removed 7 redundant places. [2022-12-13 19:11:56,716 INFO L231 Difference]: Finished difference. Result has 35 places, 21 transitions, 87 flow [2022-12-13 19:11:56,716 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=87, PETRI_PLACES=35, PETRI_TRANSITIONS=21} [2022-12-13 19:11:56,717 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2022-12-13 19:11:56,717 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 21 transitions, 87 flow [2022-12-13 19:11:56,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.0) internal successors, (376), 4 states have internal predecessors, (376), 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 19:11:56,717 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:11:56,717 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:11:56,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 19:11:56,717 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 19:11:56,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:11:56,717 INFO L85 PathProgramCache]: Analyzing trace with hash -862359642, now seen corresponding path program 1 times [2022-12-13 19:11:56,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:11:56,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037496166] [2022-12-13 19:11:56,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:11:56,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:11:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:56,797 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 19:11:56,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:11:56,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037496166] [2022-12-13 19:11:56,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037496166] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:11:56,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:11:56,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:11:56,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888332639] [2022-12-13 19:11:56,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:11:56,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:11:56,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:11:56,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:11:56,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:11:56,810 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 198 [2022-12-13 19:11:56,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 21 transitions, 87 flow. Second operand has 5 states, 5 states have (on average 93.6) internal successors, (468), 5 states have internal predecessors, (468), 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 19:11:56,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:11:56,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 198 [2022-12-13 19:11:56,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:11:56,861 INFO L130 PetriNetUnfolder]: 34/86 cut-off events. [2022-12-13 19:11:56,861 INFO L131 PetriNetUnfolder]: For 94/104 co-relation queries the response was YES. [2022-12-13 19:11:56,861 INFO L83 FinitePrefix]: Finished finitePrefix Result has 286 conditions, 86 events. 34/86 cut-off events. For 94/104 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 230 event pairs, 2 based on Foata normal form. 12/96 useless extension candidates. Maximal degree in co-relation 278. Up to 44 conditions per place. [2022-12-13 19:11:56,862 INFO L137 encePairwiseOnDemand]: 192/198 looper letters, 22 selfloop transitions, 8 changer transitions 1/34 dead transitions. [2022-12-13 19:11:56,862 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 34 transitions, 197 flow [2022-12-13 19:11:56,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:11:56,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:11:56,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 488 transitions. [2022-12-13 19:11:56,864 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49292929292929294 [2022-12-13 19:11:56,864 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 488 transitions. [2022-12-13 19:11:56,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 488 transitions. [2022-12-13 19:11:56,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:11:56,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 488 transitions. [2022-12-13 19:11:56,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.6) internal successors, (488), 5 states have internal predecessors, (488), 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 19:11:56,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 19:11:56,867 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 198.0) internal successors, (1188), 6 states have internal predecessors, (1188), 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 19:11:56,868 INFO L175 Difference]: Start difference. First operand has 35 places, 21 transitions, 87 flow. Second operand 5 states and 488 transitions. [2022-12-13 19:11:56,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 34 transitions, 197 flow [2022-12-13 19:11:56,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 34 transitions, 187 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 19:11:56,869 INFO L231 Difference]: Finished difference. Result has 39 places, 24 transitions, 127 flow [2022-12-13 19:11:56,869 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=127, PETRI_PLACES=39, PETRI_TRANSITIONS=24} [2022-12-13 19:11:56,870 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 4 predicate places. [2022-12-13 19:11:56,870 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 24 transitions, 127 flow [2022-12-13 19:11:56,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 93.6) internal successors, (468), 5 states have internal predecessors, (468), 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 19:11:56,870 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:11:56,870 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:11:56,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 19:11:56,871 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 19:11:56,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:11:56,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1737861105, now seen corresponding path program 1 times [2022-12-13 19:11:56,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:11:56,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936649741] [2022-12-13 19:11:56,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:11:56,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:11:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:56,964 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 19:11:56,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:11:56,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936649741] [2022-12-13 19:11:56,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936649741] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:11:56,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:11:56,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:11:56,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723945913] [2022-12-13 19:11:56,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:11:56,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:11:56,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:11:56,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:11:56,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:11:56,975 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 198 [2022-12-13 19:11:56,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 24 transitions, 127 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 19:11:56,976 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:11:56,976 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 198 [2022-12-13 19:11:56,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:11:57,020 INFO L130 PetriNetUnfolder]: 17/55 cut-off events. [2022-12-13 19:11:57,021 INFO L131 PetriNetUnfolder]: For 134/143 co-relation queries the response was YES. [2022-12-13 19:11:57,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 55 events. 17/55 cut-off events. For 134/143 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 102 event pairs, 2 based on Foata normal form. 10/64 useless extension candidates. Maximal degree in co-relation 201. Up to 24 conditions per place. [2022-12-13 19:11:57,021 INFO L137 encePairwiseOnDemand]: 192/198 looper letters, 15 selfloop transitions, 11 changer transitions 1/30 dead transitions. [2022-12-13 19:11:57,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 30 transitions, 203 flow [2022-12-13 19:11:57,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:11:57,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:11:57,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 575 transitions. [2022-12-13 19:11:57,022 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.484006734006734 [2022-12-13 19:11:57,022 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 575 transitions. [2022-12-13 19:11:57,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 575 transitions. [2022-12-13 19:11:57,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:11:57,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 575 transitions. [2022-12-13 19:11:57,023 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 19:11:57,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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 19:11:57,025 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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 19:11:57,025 INFO L175 Difference]: Start difference. First operand has 39 places, 24 transitions, 127 flow. Second operand 6 states and 575 transitions. [2022-12-13 19:11:57,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 30 transitions, 203 flow [2022-12-13 19:11:57,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 30 transitions, 170 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-12-13 19:11:57,026 INFO L231 Difference]: Finished difference. Result has 40 places, 24 transitions, 135 flow [2022-12-13 19:11:57,026 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=135, PETRI_PLACES=40, PETRI_TRANSITIONS=24} [2022-12-13 19:11:57,026 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2022-12-13 19:11:57,026 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 24 transitions, 135 flow [2022-12-13 19:11:57,027 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 19:11:57,027 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:11:57,027 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:11:57,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 19:11:57,027 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 19:11:57,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:11:57,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1704132422, now seen corresponding path program 1 times [2022-12-13 19:11:57,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:11:57,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880771752] [2022-12-13 19:11:57,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:11:57,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:11:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:11:57,105 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 19:11:57,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:11:57,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880771752] [2022-12-13 19:11:57,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880771752] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:11:57,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:11:57,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:11:57,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367759936] [2022-12-13 19:11:57,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:11:57,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:11:57,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:11:57,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:11:57,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:11:57,122 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 198 [2022-12-13 19:11:57,122 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 24 transitions, 135 flow. Second operand has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 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 19:11:57,122 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:11:57,122 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 198 [2022-12-13 19:11:57,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:11:57,168 INFO L130 PetriNetUnfolder]: 18/53 cut-off events. [2022-12-13 19:11:57,169 INFO L131 PetriNetUnfolder]: For 111/111 co-relation queries the response was YES. [2022-12-13 19:11:57,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 53 events. 18/53 cut-off events. For 111/111 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 81 event pairs, 3 based on Foata normal form. 1/54 useless extension candidates. Maximal degree in co-relation 199. Up to 27 conditions per place. [2022-12-13 19:11:57,169 INFO L137 encePairwiseOnDemand]: 192/198 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2022-12-13 19:11:57,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 29 transitions, 224 flow [2022-12-13 19:11:57,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:11:57,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:11:57,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 548 transitions. [2022-12-13 19:11:57,170 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4612794612794613 [2022-12-13 19:11:57,170 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 548 transitions. [2022-12-13 19:11:57,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 548 transitions. [2022-12-13 19:11:57,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:11:57,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 548 transitions. [2022-12-13 19:11:57,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 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 19:11:57,172 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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 19:11:57,173 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 198.0) internal successors, (1386), 7 states have internal predecessors, (1386), 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 19:11:57,173 INFO L175 Difference]: Start difference. First operand has 40 places, 24 transitions, 135 flow. Second operand 6 states and 548 transitions. [2022-12-13 19:11:57,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 29 transitions, 224 flow [2022-12-13 19:11:57,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 29 transitions, 148 flow, removed 11 selfloop flow, removed 9 redundant places. [2022-12-13 19:11:57,174 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2022-12-13 19:11:57,174 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=198, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2022-12-13 19:11:57,174 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2022-12-13 19:11:57,174 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2022-12-13 19:11:57,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 91.2) internal successors, (456), 5 states have internal predecessors, (456), 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 19:11:57,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2022-12-13 19:11:57,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2022-12-13 19:11:57,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2022-12-13 19:11:57,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2022-12-13 19:11:57,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2022-12-13 19:11:57,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2022-12-13 19:11:57,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2022-12-13 19:11:57,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2022-12-13 19:11:57,177 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2022-12-13 19:11:57,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2022-12-13 19:11:57,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2022-12-13 19:11:57,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 19:11:57,178 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:11:57,180 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 19:11:57,180 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:11:57,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:11:57 BasicIcfg [2022-12-13 19:11:57,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:11:57,183 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:11:57,183 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:11:57,183 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:11:57,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:11:52" (3/4) ... [2022-12-13 19:11:57,185 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 19:11:57,190 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 19:11:57,190 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 19:11:57,190 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-13 19:11:57,193 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-13 19:11:57,193 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 19:11:57,193 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 19:11:57,193 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 19:11:57,215 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938dee6-1a50-41e7-9571-468733a439f2/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:11:57,215 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:11:57,215 INFO L158 Benchmark]: Toolchain (without parser) took 5149.89ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 101.9MB in the beginning and 76.5MB in the end (delta: 25.4MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. [2022-12-13 19:11:57,215 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 140.5MB. Free memory is still 112.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:11:57,215 INFO L158 Benchmark]: CACSL2BoogieTranslator took 314.22ms. Allocated memory is still 140.5MB. Free memory was 101.9MB in the beginning and 78.4MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-13 19:11:57,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.99ms. Allocated memory is still 140.5MB. Free memory was 78.4MB in the beginning and 76.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:11:57,216 INFO L158 Benchmark]: Boogie Preprocessor took 16.66ms. Allocated memory is still 140.5MB. Free memory was 76.2MB in the beginning and 75.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:11:57,216 INFO L158 Benchmark]: RCFGBuilder took 311.75ms. Allocated memory is still 140.5MB. Free memory was 75.1MB in the beginning and 60.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 19:11:57,216 INFO L158 Benchmark]: TraceAbstraction took 4440.74ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 59.9MB in the beginning and 79.6MB in the end (delta: -19.7MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2022-12-13 19:11:57,216 INFO L158 Benchmark]: Witness Printer took 31.77ms. Allocated memory is still 169.9MB. Free memory was 78.5MB in the beginning and 76.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:11:57,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 140.5MB. Free memory is still 112.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 314.22ms. Allocated memory is still 140.5MB. Free memory was 101.9MB in the beginning and 78.4MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.99ms. Allocated memory is still 140.5MB. Free memory was 78.4MB in the beginning and 76.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.66ms. Allocated memory is still 140.5MB. Free memory was 76.2MB in the beginning and 75.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.75ms. Allocated memory is still 140.5MB. Free memory was 75.1MB in the beginning and 60.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4440.74ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 59.9MB in the beginning and 79.6MB in the end (delta: -19.7MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Witness Printer took 31.77ms. Allocated memory is still 169.9MB. Free memory was 78.5MB in the beginning and 76.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 103 PlacesBefore, 35 PlacesAfterwards, 95 TransitionsBefore, 26 TransitionsAfterwards, 1620 CoEnabledTransitionPairs, 6 FixpointIterations, 31 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 1 ChoiceCompositions, 95 TotalNumberOfCompositions, 3171 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1698, independent: 1605, independent conditional: 0, independent unconditional: 1605, dependent: 93, dependent conditional: 0, dependent unconditional: 93, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 894, independent: 866, independent conditional: 0, independent unconditional: 866, dependent: 28, dependent conditional: 0, dependent unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1698, independent: 739, independent conditional: 0, independent unconditional: 739, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 894, unknown conditional: 0, unknown unconditional: 894] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 60, Positive conditional cache size: 0, Positive unconditional cache size: 60, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 778]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 126 locations, 11 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: 4.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 436 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 355 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 696 IncrementalHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 15 mSDtfsCounter, 696 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=8, InterpolantAutomatonStates: 47, 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, 1.0s InterpolantComputationTime, 104 NumberOfCodeBlocks, 104 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 586 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 19:11:57,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e938dee6-1a50-41e7-9571-468733a439f2/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 Writing output log to file Ultimate.log Result: TRUE