./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe033_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_28bcc6eb-d036-4472-829f-6593bbf31cad/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bcc6eb-d036-4472-829f-6593bbf31cad/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_28bcc6eb-d036-4472-829f-6593bbf31cad/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bcc6eb-d036-4472-829f-6593bbf31cad/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe033_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bcc6eb-d036-4472-829f-6593bbf31cad/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_28bcc6eb-d036-4472-829f-6593bbf31cad/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 03e09f2995f610da86eeaa1f1ee03bc9ee01699bf21a2567d5a1129cd8929582 --- 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 13:32:44,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:32:44,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:32:44,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:32:44,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:32:44,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:32:44,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:32:44,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:32:44,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:32:44,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:32:44,467 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:32:44,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:32:44,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:32:44,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:32:44,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:32:44,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:32:44,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:32:44,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:32:44,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:32:44,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:32:44,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:32:44,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:32:44,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:32:44,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:32:44,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:32:44,479 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:32:44,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:32:44,480 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:32:44,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:32:44,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:32:44,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:32:44,482 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:32:44,483 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:32:44,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:32:44,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:32:44,484 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:32:44,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:32:44,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:32:44,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:32:44,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:32:44,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:32:44,487 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bcc6eb-d036-4472-829f-6593bbf31cad/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 13:32:44,501 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:32:44,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:32:44,501 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:32:44,501 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:32:44,502 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:32:44,502 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:32:44,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:32:44,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:32:44,503 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:32:44,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:32:44,503 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:32:44,503 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:32:44,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:32:44,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:32:44,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:32:44,504 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 13:32:44,504 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 13:32:44,504 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 13:32:44,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:32:44,504 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 13:32:44,504 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:32:44,504 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:32:44,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:32:44,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:32:44,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:32:44,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:32:44,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:32:44,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:32:44,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:32:44,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:32:44,506 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:32:44,506 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:32:44,506 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:32:44,506 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:32:44,507 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_28bcc6eb-d036-4472-829f-6593bbf31cad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bcc6eb-d036-4472-829f-6593bbf31cad/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03e09f2995f610da86eeaa1f1ee03bc9ee01699bf21a2567d5a1129cd8929582 [2022-12-13 13:32:44,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:32:44,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:32:44,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:32:44,703 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:32:44,703 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:32:44,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bcc6eb-d036-4472-829f-6593bbf31cad/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/safe033_tso.i [2022-12-13 13:32:47,313 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:32:47,540 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:32:47,541 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bcc6eb-d036-4472-829f-6593bbf31cad/sv-benchmarks/c/pthread-wmm/safe033_tso.i [2022-12-13 13:32:47,553 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bcc6eb-d036-4472-829f-6593bbf31cad/bin/uautomizer-uyxdKDjOR8/data/f33a4a15a/6a3134eb945c47378677293e0c48c856/FLAG2ceacf34f [2022-12-13 13:32:47,566 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bcc6eb-d036-4472-829f-6593bbf31cad/bin/uautomizer-uyxdKDjOR8/data/f33a4a15a/6a3134eb945c47378677293e0c48c856 [2022-12-13 13:32:47,568 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:32:47,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:32:47,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:32:47,570 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:32:47,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:32:47,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:32:47" (1/1) ... [2022-12-13 13:32:47,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d71127b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:32:47, skipping insertion in model container [2022-12-13 13:32:47,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:32:47" (1/1) ... [2022-12-13 13:32:47,580 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:32:47,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:32:47,741 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_28bcc6eb-d036-4472-829f-6593bbf31cad/sv-benchmarks/c/pthread-wmm/safe033_tso.i[945,958] [2022-12-13 13:32:47,860 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,861 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,865 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,865 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,865 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,865 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,865 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,870 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,871 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,873 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:32:47,884 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:32:47,896 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_28bcc6eb-d036-4472-829f-6593bbf31cad/sv-benchmarks/c/pthread-wmm/safe033_tso.i[945,958] [2022-12-13 13:32:47,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,920 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,921 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,928 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:32:47,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:32:47,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:32:47,970 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:32:47,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:32:47 WrapperNode [2022-12-13 13:32:47,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:32:47,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:32:47,972 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:32:47,972 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:32:47,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:32:47" (1/1) ... [2022-12-13 13:32:47,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:32:47" (1/1) ... [2022-12-13 13:32:48,012 INFO L138 Inliner]: procedures = 175, calls = 42, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2022-12-13 13:32:48,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:32:48,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:32:48,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:32:48,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:32:48,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:32:47" (1/1) ... [2022-12-13 13:32:48,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:32:47" (1/1) ... [2022-12-13 13:32:48,024 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:32:47" (1/1) ... [2022-12-13 13:32:48,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:32:47" (1/1) ... [2022-12-13 13:32:48,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:32:47" (1/1) ... [2022-12-13 13:32:48,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:32:47" (1/1) ... [2022-12-13 13:32:48,033 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:32:47" (1/1) ... [2022-12-13 13:32:48,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:32:47" (1/1) ... [2022-12-13 13:32:48,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:32:48,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:32:48,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:32:48,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:32:48,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:32:47" (1/1) ... [2022-12-13 13:32:48,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:32:48,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bcc6eb-d036-4472-829f-6593bbf31cad/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:32:48,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bcc6eb-d036-4472-829f-6593bbf31cad/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:32:48,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bcc6eb-d036-4472-829f-6593bbf31cad/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:32:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:32:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 13:32:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:32:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:32:48,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:32:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 13:32:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 13:32:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 13:32:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 13:32:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:32:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 13:32:48,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:32:48,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:32:48,097 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 13:32:48,186 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:32:48,188 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:32:48,304 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:32:48,309 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:32:48,310 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:32:48,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:32:48 BoogieIcfgContainer [2022-12-13 13:32:48,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:32:48,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:32:48,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:32:48,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:32:48,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:32:47" (1/3) ... [2022-12-13 13:32:48,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1aca92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:32:48, skipping insertion in model container [2022-12-13 13:32:48,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:32:47" (2/3) ... [2022-12-13 13:32:48,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1aca92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:32:48, skipping insertion in model container [2022-12-13 13:32:48,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:32:48" (3/3) ... [2022-12-13 13:32:48,318 INFO L112 eAbstractionObserver]: Analyzing ICFG safe033_tso.i [2022-12-13 13:32:48,331 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:32:48,331 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 13:32:48,332 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:32:48,373 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 13:32:48,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 82 transitions, 174 flow [2022-12-13 13:32:48,426 INFO L130 PetriNetUnfolder]: 2/80 cut-off events. [2022-12-13 13:32:48,426 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:32:48,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 80 events. 2/80 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2022-12-13 13:32:48,430 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 82 transitions, 174 flow [2022-12-13 13:32:48,433 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 75 transitions, 156 flow [2022-12-13 13:32:48,436 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:32:48,444 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 80 places, 75 transitions, 156 flow [2022-12-13 13:32:48,446 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 80 places, 75 transitions, 156 flow [2022-12-13 13:32:48,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 75 transitions, 156 flow [2022-12-13 13:32:48,459 INFO L130 PetriNetUnfolder]: 2/75 cut-off events. [2022-12-13 13:32:48,460 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:32:48,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 75 events. 2/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2022-12-13 13:32:48,461 INFO L119 LiptonReduction]: Number of co-enabled transitions 852 [2022-12-13 13:32:50,012 INFO L134 LiptonReduction]: Checked pairs total: 1611 [2022-12-13 13:32:50,012 INFO L136 LiptonReduction]: Total number of compositions: 80 [2022-12-13 13:32:50,027 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:32:50,034 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;@1e2e901d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:32:50,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 13:32:50,035 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 13:32:50,035 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:32:50,035 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:32:50,036 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 13:32:50,036 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-13 13:32:50,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:32:50,041 INFO L85 PathProgramCache]: Analyzing trace with hash 298, now seen corresponding path program 1 times [2022-12-13 13:32:50,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:32:50,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86163220] [2022-12-13 13:32:50,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:32:50,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:32:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:32:50,128 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 13:32:50,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:32:50,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86163220] [2022-12-13 13:32:50,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86163220] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:32:50,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:32:50,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 13:32:50,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54957641] [2022-12-13 13:32:50,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:32:50,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:32:50,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:32:50,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:32:50,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:32:50,154 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 162 [2022-12-13 13:32:50,155 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 44 flow. Second operand has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 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 13:32:50,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:32:50,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 162 [2022-12-13 13:32:50,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:32:50,194 INFO L130 PetriNetUnfolder]: 56/113 cut-off events. [2022-12-13 13:32:50,194 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:32:50,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 233 conditions, 113 events. 56/113 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 393 event pairs, 56 based on Foata normal form. 0/100 useless extension candidates. Maximal degree in co-relation 223. Up to 109 conditions per place. [2022-12-13 13:32:50,196 INFO L137 encePairwiseOnDemand]: 157/162 looper letters, 12 selfloop transitions, 0 changer transitions 0/14 dead transitions. [2022-12-13 13:32:50,196 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 14 transitions, 58 flow [2022-12-13 13:32:50,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:32:50,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 13:32:50,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 171 transitions. [2022-12-13 13:32:50,205 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5277777777777778 [2022-12-13 13:32:50,206 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 171 transitions. [2022-12-13 13:32:50,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 171 transitions. [2022-12-13 13:32:50,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:32:50,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 171 transitions. [2022-12-13 13:32:50,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 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 13:32:50,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 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 13:32:50,214 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 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 13:32:50,215 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 44 flow. Second operand 2 states and 171 transitions. [2022-12-13 13:32:50,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 14 transitions, 58 flow [2022-12-13 13:32:50,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 14 transitions, 56 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:32:50,218 INFO L231 Difference]: Finished difference. Result has 20 places, 14 transitions, 32 flow [2022-12-13 13:32:50,220 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=32, PETRI_PLACES=20, PETRI_TRANSITIONS=14} [2022-12-13 13:32:50,222 INFO L288 CegarLoopForPetriNet]: 25 programPoint places, -5 predicate places. [2022-12-13 13:32:50,223 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 14 transitions, 32 flow [2022-12-13 13:32:50,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.5) internal successors, (155), 2 states have internal predecessors, (155), 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 13:32:50,223 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:32:50,223 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:32:50,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:32:50,223 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-13 13:32:50,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:32:50,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1947136691, now seen corresponding path program 1 times [2022-12-13 13:32:50,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:32:50,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508127799] [2022-12-13 13:32:50,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:32:50,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:32:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:32:50,432 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 13:32:50,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:32:50,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508127799] [2022-12-13 13:32:50,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508127799] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:32:50,433 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:32:50,433 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:32:50,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194924531] [2022-12-13 13:32:50,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:32:50,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:32:50,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:32:50,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:32:50,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:32:50,447 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 162 [2022-12-13 13:32:50,448 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 14 transitions, 32 flow. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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 13:32:50,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:32:50,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 162 [2022-12-13 13:32:50,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:32:50,525 INFO L130 PetriNetUnfolder]: 90/185 cut-off events. [2022-12-13 13:32:50,526 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:32:50,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 185 events. 90/185 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 738 event pairs, 36 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 368. Up to 120 conditions per place. [2022-12-13 13:32:50,528 INFO L137 encePairwiseOnDemand]: 157/162 looper letters, 24 selfloop transitions, 6 changer transitions 0/31 dead transitions. [2022-12-13 13:32:50,528 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 31 transitions, 128 flow [2022-12-13 13:32:50,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:32:50,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 13:32:50,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 397 transitions. [2022-12-13 13:32:50,531 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4901234567901235 [2022-12-13 13:32:50,532 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 397 transitions. [2022-12-13 13:32:50,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 397 transitions. [2022-12-13 13:32:50,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:32:50,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 397 transitions. [2022-12-13 13:32:50,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 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 13:32:50,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 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 13:32:50,537 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 162.0) internal successors, (972), 6 states have internal predecessors, (972), 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 13:32:50,537 INFO L175 Difference]: Start difference. First operand has 20 places, 14 transitions, 32 flow. Second operand 5 states and 397 transitions. [2022-12-13 13:32:50,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 31 transitions, 128 flow [2022-12-13 13:32:50,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 31 transitions, 128 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:32:50,539 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 77 flow [2022-12-13 13:32:50,539 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=77, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2022-12-13 13:32:50,540 INFO L288 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2022-12-13 13:32:50,540 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 77 flow [2022-12-13 13:32:50,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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 13:32:50,540 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:32:50,540 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:32:50,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:32:50,541 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-13 13:32:50,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:32:50,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1947136707, now seen corresponding path program 1 times [2022-12-13 13:32:50,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:32:50,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558166887] [2022-12-13 13:32:50,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:32:50,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:32:50,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:32:50,700 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 13:32:50,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:32:50,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558166887] [2022-12-13 13:32:50,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558166887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:32:50,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:32:50,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:32:50,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072123665] [2022-12-13 13:32:50,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:32:50,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:32:50,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:32:50,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:32:50,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:32:50,751 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 162 [2022-12-13 13:32:50,751 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 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 13:32:50,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:32:50,751 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 162 [2022-12-13 13:32:50,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:32:50,787 INFO L130 PetriNetUnfolder]: 56/120 cut-off events. [2022-12-13 13:32:50,787 INFO L131 PetriNetUnfolder]: For 63/65 co-relation queries the response was YES. [2022-12-13 13:32:50,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332 conditions, 120 events. 56/120 cut-off events. For 63/65 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 418 event pairs, 37 based on Foata normal form. 17/133 useless extension candidates. Maximal degree in co-relation 325. Up to 104 conditions per place. [2022-12-13 13:32:50,788 INFO L137 encePairwiseOnDemand]: 159/162 looper letters, 12 selfloop transitions, 2 changer transitions 3/20 dead transitions. [2022-12-13 13:32:50,788 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 20 transitions, 114 flow [2022-12-13 13:32:50,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:32:50,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:32:50,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 278 transitions. [2022-12-13 13:32:50,790 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42901234567901236 [2022-12-13 13:32:50,790 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 278 transitions. [2022-12-13 13:32:50,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 278 transitions. [2022-12-13 13:32:50,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:32:50,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 278 transitions. [2022-12-13 13:32:50,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 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 13:32:50,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 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 13:32:50,792 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 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 13:32:50,792 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 77 flow. Second operand 4 states and 278 transitions. [2022-12-13 13:32:50,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 20 transitions, 114 flow [2022-12-13 13:32:50,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 20 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:32:50,793 INFO L231 Difference]: Finished difference. Result has 28 places, 15 transitions, 58 flow [2022-12-13 13:32:50,793 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=58, PETRI_PLACES=28, PETRI_TRANSITIONS=15} [2022-12-13 13:32:50,794 INFO L288 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2022-12-13 13:32:50,794 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 15 transitions, 58 flow [2022-12-13 13:32:50,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.75) internal successors, (271), 4 states have internal predecessors, (271), 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 13:32:50,794 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:32:50,794 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:32:50,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:32:50,795 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-13 13:32:50,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:32:50,795 INFO L85 PathProgramCache]: Analyzing trace with hash -741833218, now seen corresponding path program 1 times [2022-12-13 13:32:50,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:32:50,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698591513] [2022-12-13 13:32:50,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:32:50,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:32:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:32:50,863 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 13:32:50,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:32:50,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698591513] [2022-12-13 13:32:50,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698591513] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:32:50,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:32:50,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:32:50,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330962902] [2022-12-13 13:32:50,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:32:50,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:32:50,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:32:50,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:32:50,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:32:50,870 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 162 [2022-12-13 13:32:50,871 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 15 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 13:32:50,871 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:32:50,871 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 162 [2022-12-13 13:32:50,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:32:50,897 INFO L130 PetriNetUnfolder]: 23/59 cut-off events. [2022-12-13 13:32:50,897 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-12-13 13:32:50,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 59 events. 23/59 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 136 event pairs, 8 based on Foata normal form. 4/61 useless extension candidates. Maximal degree in co-relation 165. Up to 42 conditions per place. [2022-12-13 13:32:50,898 INFO L137 encePairwiseOnDemand]: 158/162 looper letters, 15 selfloop transitions, 3 changer transitions 0/21 dead transitions. [2022-12-13 13:32:50,898 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 21 transitions, 114 flow [2022-12-13 13:32:50,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:32:50,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:32:50,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 240 transitions. [2022-12-13 13:32:50,899 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49382716049382713 [2022-12-13 13:32:50,899 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 240 transitions. [2022-12-13 13:32:50,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 240 transitions. [2022-12-13 13:32:50,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:32:50,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 240 transitions. [2022-12-13 13:32:50,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 13:32:50,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 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 13:32:50,901 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 162.0) internal successors, (648), 4 states have internal predecessors, (648), 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 13:32:50,902 INFO L175 Difference]: Start difference. First operand has 28 places, 15 transitions, 58 flow. Second operand 3 states and 240 transitions. [2022-12-13 13:32:50,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 21 transitions, 114 flow [2022-12-13 13:32:50,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 21 transitions, 108 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-12-13 13:32:50,903 INFO L231 Difference]: Finished difference. Result has 26 places, 17 transitions, 72 flow [2022-12-13 13:32:50,903 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=26, PETRI_TRANSITIONS=17} [2022-12-13 13:32:50,903 INFO L288 CegarLoopForPetriNet]: 25 programPoint places, 1 predicate places. [2022-12-13 13:32:50,903 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 17 transitions, 72 flow [2022-12-13 13:32:50,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 13:32:50,904 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:32:50,904 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:32:50,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:32:50,904 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-13 13:32:50,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:32:50,904 INFO L85 PathProgramCache]: Analyzing trace with hash -11138690, now seen corresponding path program 1 times [2022-12-13 13:32:50,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:32:50,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342090597] [2022-12-13 13:32:50,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:32:50,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:32:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:32:50,980 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 13:32:50,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:32:50,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342090597] [2022-12-13 13:32:50,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342090597] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:32:50,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:32:50,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:32:50,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182934140] [2022-12-13 13:32:50,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:32:50,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:32:50,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:32:50,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:32:50,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:32:50,989 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 162 [2022-12-13 13:32:50,989 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 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 13:32:50,990 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:32:50,990 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 162 [2022-12-13 13:32:50,990 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:32:51,018 INFO L130 PetriNetUnfolder]: 9/32 cut-off events. [2022-12-13 13:32:51,018 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-13 13:32:51,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 32 events. 9/32 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 52 event pairs, 3 based on Foata normal form. 4/35 useless extension candidates. Maximal degree in co-relation 101. Up to 13 conditions per place. [2022-12-13 13:32:51,019 INFO L137 encePairwiseOnDemand]: 158/162 looper letters, 13 selfloop transitions, 5 changer transitions 0/21 dead transitions. [2022-12-13 13:32:51,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 21 transitions, 123 flow [2022-12-13 13:32:51,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:32:51,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:32:51,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 314 transitions. [2022-12-13 13:32:51,021 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4845679012345679 [2022-12-13 13:32:51,021 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 314 transitions. [2022-12-13 13:32:51,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 314 transitions. [2022-12-13 13:32:51,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:32:51,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 314 transitions. [2022-12-13 13:32:51,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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 13:32:51,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 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 13:32:51,023 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 162.0) internal successors, (810), 5 states have internal predecessors, (810), 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 13:32:51,024 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 72 flow. Second operand 4 states and 314 transitions. [2022-12-13 13:32:51,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 21 transitions, 123 flow [2022-12-13 13:32:51,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 21 transitions, 110 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-12-13 13:32:51,024 INFO L231 Difference]: Finished difference. Result has 28 places, 17 transitions, 77 flow [2022-12-13 13:32:51,025 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=77, PETRI_PLACES=28, PETRI_TRANSITIONS=17} [2022-12-13 13:32:51,025 INFO L288 CegarLoopForPetriNet]: 25 programPoint places, 3 predicate places. [2022-12-13 13:32:51,025 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 17 transitions, 77 flow [2022-12-13 13:32:51,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 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 13:32:51,025 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:32:51,025 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:32:51,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 13:32:51,026 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 5 more)] === [2022-12-13 13:32:51,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:32:51,026 INFO L85 PathProgramCache]: Analyzing trace with hash -91458067, now seen corresponding path program 1 times [2022-12-13 13:32:51,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:32:51,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180213631] [2022-12-13 13:32:51,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:32:51,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:32:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:32:51,101 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 13:32:51,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:32:51,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180213631] [2022-12-13 13:32:51,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180213631] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:32:51,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:32:51,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:32:51,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72896216] [2022-12-13 13:32:51,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:32:51,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:32:51,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:32:51,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:32:51,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:32:51,116 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 162 [2022-12-13 13:32:51,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 17 transitions, 77 flow. Second operand has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 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 13:32:51,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:32:51,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 162 [2022-12-13 13:32:51,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:32:51,168 INFO L130 PetriNetUnfolder]: 17/48 cut-off events. [2022-12-13 13:32:51,168 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2022-12-13 13:32:51,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 48 events. 17/48 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 103 event pairs, 0 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 153. Up to 20 conditions per place. [2022-12-13 13:32:51,168 INFO L137 encePairwiseOnDemand]: 155/162 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2022-12-13 13:32:51,168 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 26 transitions, 169 flow [2022-12-13 13:32:51,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:32:51,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:32:51,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 437 transitions. [2022-12-13 13:32:51,169 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4495884773662551 [2022-12-13 13:32:51,169 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 437 transitions. [2022-12-13 13:32:51,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 437 transitions. [2022-12-13 13:32:51,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:32:51,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 437 transitions. [2022-12-13 13:32:51,170 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 72.83333333333333) internal successors, (437), 6 states have internal predecessors, (437), 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 13:32:51,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 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 13:32:51,172 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 162.0) internal successors, (1134), 7 states have internal predecessors, (1134), 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 13:32:51,172 INFO L175 Difference]: Start difference. First operand has 28 places, 17 transitions, 77 flow. Second operand 6 states and 437 transitions. [2022-12-13 13:32:51,172 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 26 transitions, 169 flow [2022-12-13 13:32:51,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 26 transitions, 156 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-12-13 13:32:51,173 INFO L231 Difference]: Finished difference. Result has 30 places, 0 transitions, 0 flow [2022-12-13 13:32:51,173 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=162, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=30, PETRI_TRANSITIONS=0} [2022-12-13 13:32:51,173 INFO L288 CegarLoopForPetriNet]: 25 programPoint places, 5 predicate places. [2022-12-13 13:32:51,173 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 0 transitions, 0 flow [2022-12-13 13:32:51,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 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 13:32:51,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 8 remaining) [2022-12-13 13:32:51,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 8 remaining) [2022-12-13 13:32:51,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 8 remaining) [2022-12-13 13:32:51,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 8 remaining) [2022-12-13 13:32:51,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (3 of 8 remaining) [2022-12-13 13:32:51,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (2 of 8 remaining) [2022-12-13 13:32:51,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2022-12-13 13:32:51,176 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2022-12-13 13:32:51,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:32:51,177 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-13 13:32:51,179 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 13:32:51,179 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:32:51,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:32:51 BasicIcfg [2022-12-13 13:32:51,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:32:51,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:32:51,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:32:51,183 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:32:51,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:32:48" (3/4) ... [2022-12-13 13:32:51,185 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 13:32:51,190 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 13:32:51,190 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 13:32:51,193 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-12-13 13:32:51,193 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 13:32:51,193 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 13:32:51,193 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 13:32:51,216 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bcc6eb-d036-4472-829f-6593bbf31cad/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:32:51,216 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:32:51,217 INFO L158 Benchmark]: Toolchain (without parser) took 3647.62ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 108.2MB in the beginning and 53.8MB in the end (delta: 54.4MB). Peak memory consumption was 85.3MB. Max. memory is 16.1GB. [2022-12-13 13:32:51,217 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 140.5MB. Free memory is still 113.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:32:51,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.11ms. Allocated memory is still 140.5MB. Free memory was 108.2MB in the beginning and 86.2MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-13 13:32:51,224 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.44ms. Allocated memory is still 140.5MB. Free memory was 85.8MB in the beginning and 84.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:32:51,224 INFO L158 Benchmark]: Boogie Preprocessor took 25.10ms. Allocated memory is still 140.5MB. Free memory was 84.1MB in the beginning and 82.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:32:51,225 INFO L158 Benchmark]: RCFGBuilder took 272.82ms. Allocated memory is still 140.5MB. Free memory was 82.7MB in the beginning and 69.4MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 13:32:51,225 INFO L158 Benchmark]: TraceAbstraction took 2868.90ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 69.0MB in the beginning and 55.9MB in the end (delta: 13.1MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. [2022-12-13 13:32:51,225 INFO L158 Benchmark]: Witness Printer took 33.93ms. Allocated memory is still 169.9MB. Free memory was 55.9MB in the beginning and 53.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:32:51,227 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 140.5MB. Free memory is still 113.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.11ms. Allocated memory is still 140.5MB. Free memory was 108.2MB in the beginning and 86.2MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.44ms. Allocated memory is still 140.5MB. Free memory was 85.8MB in the beginning and 84.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.10ms. Allocated memory is still 140.5MB. Free memory was 84.1MB in the beginning and 82.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 272.82ms. Allocated memory is still 140.5MB. Free memory was 82.7MB in the beginning and 69.4MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2868.90ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 69.0MB in the beginning and 55.9MB in the end (delta: 13.1MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. * Witness Printer took 33.93ms. Allocated memory is still 169.9MB. Free memory was 55.9MB in the beginning and 53.8MB 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: 1.6s, 80 PlacesBefore, 25 PlacesAfterwards, 75 TransitionsBefore, 19 TransitionsAfterwards, 852 CoEnabledTransitionPairs, 6 FixpointIterations, 30 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 80 TotalNumberOfCompositions, 1611 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 992, independent: 928, independent conditional: 0, independent unconditional: 928, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 516, independent: 501, independent conditional: 0, independent unconditional: 501, dependent: 15, dependent conditional: 0, dependent unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 992, independent: 427, independent conditional: 0, independent unconditional: 427, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 516, unknown conditional: 0, unknown unconditional: 516] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5, 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: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 758]: 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 5 procedures, 97 locations, 8 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: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 140 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 272 IncrementalHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 15 mSDtfsCounter, 272 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=2, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 13:32:51,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bcc6eb-d036-4472-829f-6593bbf31cad/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