./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe002_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75bf825-7614-48bf-b3cd-bdaa84dca869/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75bf825-7614-48bf-b3cd-bdaa84dca869/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_e75bf825-7614-48bf-b3cd-bdaa84dca869/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75bf825-7614-48bf-b3cd-bdaa84dca869/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe002_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75bf825-7614-48bf-b3cd-bdaa84dca869/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_e75bf825-7614-48bf-b3cd-bdaa84dca869/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 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 --- 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 11:06:43,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:06:43,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:06:43,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:06:43,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:06:43,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:06:43,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:06:43,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:06:43,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:06:43,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:06:43,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:06:43,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:06:43,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:06:43,536 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:06:43,537 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:06:43,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:06:43,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:06:43,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:06:43,540 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:06:43,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:06:43,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:06:43,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:06:43,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:06:43,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:06:43,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:06:43,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:06:43,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:06:43,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:06:43,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:06:43,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:06:43,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:06:43,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:06:43,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:06:43,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:06:43,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:06:43,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:06:43,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:06:43,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:06:43,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:06:43,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:06:43,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:06:43,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75bf825-7614-48bf-b3cd-bdaa84dca869/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 11:06:43,568 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:06:43,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:06:43,568 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:06:43,568 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:06:43,569 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:06:43,569 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:06:43,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:06:43,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:06:43,569 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:06:43,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:06:43,570 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:06:43,570 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:06:43,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:06:43,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:06:43,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:06:43,571 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 11:06:43,571 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 11:06:43,571 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 11:06:43,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:06:43,571 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:06:43,571 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:06:43,571 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:06:43,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:06:43,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:06:43,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:06:43,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:06:43,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:06:43,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:06:43,572 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:06:43,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:06:43,573 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:06:43,573 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:06:43,573 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:06:43,573 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:06:43,573 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_e75bf825-7614-48bf-b3cd-bdaa84dca869/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75bf825-7614-48bf-b3cd-bdaa84dca869/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3743abf17a0d3db70a931712c22f305431bb6e8feb7b662539ff9c5190491352 [2022-12-13 11:06:43,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:06:43,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:06:43,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:06:43,817 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:06:43,817 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:06:43,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75bf825-7614-48bf-b3cd-bdaa84dca869/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/safe002_tso.i [2022-12-13 11:06:46,388 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:06:46,601 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:06:46,602 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75bf825-7614-48bf-b3cd-bdaa84dca869/sv-benchmarks/c/pthread-wmm/safe002_tso.i [2022-12-13 11:06:46,613 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75bf825-7614-48bf-b3cd-bdaa84dca869/bin/uautomizer-uyxdKDjOR8/data/e43452134/b1d688eb129b4d24b8773f8ce46e209a/FLAG7cd5adf4e [2022-12-13 11:06:46,959 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75bf825-7614-48bf-b3cd-bdaa84dca869/bin/uautomizer-uyxdKDjOR8/data/e43452134/b1d688eb129b4d24b8773f8ce46e209a [2022-12-13 11:06:46,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:06:46,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:06:46,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:06:46,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:06:46,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:06:46,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:06:46" (1/1) ... [2022-12-13 11:06:46,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@755fa953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:46, skipping insertion in model container [2022-12-13 11:06:46,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:06:46" (1/1) ... [2022-12-13 11:06:46,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:06:47,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:06:47,120 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_e75bf825-7614-48bf-b3cd-bdaa84dca869/sv-benchmarks/c/pthread-wmm/safe002_tso.i[945,958] [2022-12-13 11:06:47,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,227 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,228 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,229 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,230 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,231 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,233 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,234 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,239 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,240 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,241 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,242 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:06:47,253 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:06:47,266 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_e75bf825-7614-48bf-b3cd-bdaa84dca869/sv-benchmarks/c/pthread-wmm/safe002_tso.i[945,958] [2022-12-13 11:06:47,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,294 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,297 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 11:06:47,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 11:06:47,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:06:47,331 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:06:47,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:47 WrapperNode [2022-12-13 11:06:47,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:06:47,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:06:47,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:06:47,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:06:47,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:47" (1/1) ... [2022-12-13 11:06:47,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:47" (1/1) ... [2022-12-13 11:06:47,369 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-12-13 11:06:47,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:06:47,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:06:47,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:06:47,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:06:47,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:47" (1/1) ... [2022-12-13 11:06:47,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:47" (1/1) ... [2022-12-13 11:06:47,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:47" (1/1) ... [2022-12-13 11:06:47,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:47" (1/1) ... [2022-12-13 11:06:47,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:47" (1/1) ... [2022-12-13 11:06:47,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:47" (1/1) ... [2022-12-13 11:06:47,389 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:47" (1/1) ... [2022-12-13 11:06:47,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:47" (1/1) ... [2022-12-13 11:06:47,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:06:47,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:06:47,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:06:47,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:06:47,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:47" (1/1) ... [2022-12-13 11:06:47,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:06:47,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75bf825-7614-48bf-b3cd-bdaa84dca869/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:06:47,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75bf825-7614-48bf-b3cd-bdaa84dca869/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:06:47,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75bf825-7614-48bf-b3cd-bdaa84dca869/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:06:47,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:06:47,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 11:06:47,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:06:47,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:06:47,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:06:47,454 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 11:06:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 11:06:47,455 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 11:06:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 11:06:47,455 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 11:06:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 11:06:47,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:06:47,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 11:06:47,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:06:47,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:06:47,457 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 11:06:47,552 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:06:47,554 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:06:47,701 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:06:47,706 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:06:47,707 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:06:47,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:06:47 BoogieIcfgContainer [2022-12-13 11:06:47,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:06:47,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:06:47,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:06:47,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:06:47,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:06:46" (1/3) ... [2022-12-13 11:06:47,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139db2d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:06:47, skipping insertion in model container [2022-12-13 11:06:47,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:06:47" (2/3) ... [2022-12-13 11:06:47,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139db2d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:06:47, skipping insertion in model container [2022-12-13 11:06:47,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:06:47" (3/3) ... [2022-12-13 11:06:47,715 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_tso.i [2022-12-13 11:06:47,729 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:06:47,729 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 11:06:47,729 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:06:47,773 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 11:06:47,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 102 transitions, 219 flow [2022-12-13 11:06:47,831 INFO L130 PetriNetUnfolder]: 2/99 cut-off events. [2022-12-13 11:06:47,831 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:06:47,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 99 events. 2/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 65 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-12-13 11:06:47,836 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 102 transitions, 219 flow [2022-12-13 11:06:47,839 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 94 transitions, 197 flow [2022-12-13 11:06:47,842 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:06:47,850 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 94 transitions, 197 flow [2022-12-13 11:06:47,852 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 94 transitions, 197 flow [2022-12-13 11:06:47,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 197 flow [2022-12-13 11:06:47,873 INFO L130 PetriNetUnfolder]: 2/94 cut-off events. [2022-12-13 11:06:47,873 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:06:47,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 94 events. 2/94 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-12-13 11:06:47,875 INFO L119 LiptonReduction]: Number of co-enabled transitions 1620 [2022-12-13 11:06:49,765 INFO L134 LiptonReduction]: Checked pairs total: 2916 [2022-12-13 11:06:49,765 INFO L136 LiptonReduction]: Total number of compositions: 95 [2022-12-13 11:06:49,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:06:49,782 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;@2c1e2c1a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:06:49,782 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-12-13 11:06:49,783 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 11:06:49,783 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:06:49,783 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:49,783 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 11:06:49,784 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 11:06:49,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:49,788 INFO L85 PathProgramCache]: Analyzing trace with hash 357, now seen corresponding path program 1 times [2022-12-13 11:06:49,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:49,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74681510] [2022-12-13 11:06:49,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:49,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:49,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:49,872 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 11:06:49,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:49,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74681510] [2022-12-13 11:06:49,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74681510] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:49,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:49,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 11:06:49,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030841531] [2022-12-13 11:06:49,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:49,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 11:06:49,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:49,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 11:06:49,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:06:49,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 197 [2022-12-13 11:06:49,899 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 26 transitions, 61 flow. Second operand has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:06:49,899 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:49,899 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 197 [2022-12-13 11:06:49,899 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:49,971 INFO L130 PetriNetUnfolder]: 272/455 cut-off events. [2022-12-13 11:06:49,971 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 11:06:49,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 918 conditions, 455 events. 272/455 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 1990 event pairs, 272 based on Foata normal form. 0/415 useless extension candidates. Maximal degree in co-relation 907. Up to 433 conditions per place. [2022-12-13 11:06:49,974 INFO L137 encePairwiseOnDemand]: 190/197 looper letters, 16 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2022-12-13 11:06:49,975 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 19 transitions, 79 flow [2022-12-13 11:06:49,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 11:06:49,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 11:06:49,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 215 transitions. [2022-12-13 11:06:49,984 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5456852791878173 [2022-12-13 11:06:49,985 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 215 transitions. [2022-12-13 11:06:49,985 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 215 transitions. [2022-12-13 11:06:49,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:49,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 215 transitions. [2022-12-13 11:06:49,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 107.5) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:06:49,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 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 11:06:49,993 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 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 11:06:49,994 INFO L175 Difference]: Start difference. First operand has 35 places, 26 transitions, 61 flow. Second operand 2 states and 215 transitions. [2022-12-13 11:06:49,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 19 transitions, 79 flow [2022-12-13 11:06:49,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 19 transitions, 76 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 11:06:49,998 INFO L231 Difference]: Finished difference. Result has 27 places, 19 transitions, 44 flow [2022-12-13 11:06:49,999 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=27, PETRI_TRANSITIONS=19} [2022-12-13 11:06:50,002 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -8 predicate places. [2022-12-13 11:06:50,002 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 19 transitions, 44 flow [2022-12-13 11:06:50,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:06:50,002 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:50,002 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:50,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:06:50,003 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 11:06:50,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:50,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1705068005, now seen corresponding path program 1 times [2022-12-13 11:06:50,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:50,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129694128] [2022-12-13 11:06:50,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:50,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:50,241 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 11:06:50,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:50,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129694128] [2022-12-13 11:06:50,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129694128] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:50,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:50,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:06:50,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687566232] [2022-12-13 11:06:50,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:50,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:06:50,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:50,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:06:50,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:06:50,260 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 197 [2022-12-13 11:06:50,260 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 19 transitions, 44 flow. Second operand has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:06:50,260 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:50,260 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 197 [2022-12-13 11:06:50,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:50,355 INFO L130 PetriNetUnfolder]: 284/485 cut-off events. [2022-12-13 11:06:50,355 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:06:50,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 967 conditions, 485 events. 284/485 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2185 event pairs, 62 based on Foata normal form. 0/463 useless extension candidates. Maximal degree in co-relation 964. Up to 205 conditions per place. [2022-12-13 11:06:50,358 INFO L137 encePairwiseOnDemand]: 192/197 looper letters, 29 selfloop transitions, 5 changer transitions 0/37 dead transitions. [2022-12-13 11:06:50,358 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 37 transitions, 148 flow [2022-12-13 11:06:50,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:06:50,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:06:50,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 486 transitions. [2022-12-13 11:06:50,360 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4934010152284264 [2022-12-13 11:06:50,360 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 486 transitions. [2022-12-13 11:06:50,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 486 transitions. [2022-12-13 11:06:50,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:50,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 486 transitions. [2022-12-13 11:06:50,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 97.2) internal successors, (486), 5 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 11:06:50,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 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 11:06:50,365 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 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 11:06:50,365 INFO L175 Difference]: Start difference. First operand has 27 places, 19 transitions, 44 flow. Second operand 5 states and 486 transitions. [2022-12-13 11:06:50,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 37 transitions, 148 flow [2022-12-13 11:06:50,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 37 transitions, 148 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 11:06:50,366 INFO L231 Difference]: Finished difference. Result has 35 places, 22 transitions, 78 flow [2022-12-13 11:06:50,366 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=78, PETRI_PLACES=35, PETRI_TRANSITIONS=22} [2022-12-13 11:06:50,366 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 0 predicate places. [2022-12-13 11:06:50,367 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 22 transitions, 78 flow [2022-12-13 11:06:50,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.25) internal successors, (369), 4 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:06:50,367 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:50,367 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:50,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:06:50,367 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 11:06:50,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:50,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1705067933, now seen corresponding path program 1 times [2022-12-13 11:06:50,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:50,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638806935] [2022-12-13 11:06:50,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:50,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:50,587 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 11:06:50,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:50,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638806935] [2022-12-13 11:06:50,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638806935] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:50,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:50,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:06:50,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715128856] [2022-12-13 11:06:50,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:50,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:06:50,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:50,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:06:50,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:06:50,653 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 197 [2022-12-13 11:06:50,654 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 22 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 82.8) internal successors, (414), 5 states have internal predecessors, (414), 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 11:06:50,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:50,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 197 [2022-12-13 11:06:50,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:50,727 INFO L130 PetriNetUnfolder]: 212/384 cut-off events. [2022-12-13 11:06:50,727 INFO L131 PetriNetUnfolder]: For 117/117 co-relation queries the response was YES. [2022-12-13 11:06:50,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 384 events. 212/384 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1732 event pairs, 39 based on Foata normal form. 45/429 useless extension candidates. Maximal degree in co-relation 892. Up to 330 conditions per place. [2022-12-13 11:06:50,729 INFO L137 encePairwiseOnDemand]: 193/197 looper letters, 18 selfloop transitions, 3 changer transitions 2/26 dead transitions. [2022-12-13 11:06:50,729 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 26 transitions, 126 flow [2022-12-13 11:06:50,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:06:50,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:06:50,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 427 transitions. [2022-12-13 11:06:50,731 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.433502538071066 [2022-12-13 11:06:50,731 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 427 transitions. [2022-12-13 11:06:50,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 427 transitions. [2022-12-13 11:06:50,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:50,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 427 transitions. [2022-12-13 11:06:50,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 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 11:06:50,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 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 11:06:50,734 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 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 11:06:50,734 INFO L175 Difference]: Start difference. First operand has 35 places, 22 transitions, 78 flow. Second operand 5 states and 427 transitions. [2022-12-13 11:06:50,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 26 transitions, 126 flow [2022-12-13 11:06:50,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 26 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 11:06:50,736 INFO L231 Difference]: Finished difference. Result has 36 places, 18 transitions, 58 flow [2022-12-13 11:06:50,736 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=58, PETRI_PLACES=36, PETRI_TRANSITIONS=18} [2022-12-13 11:06:50,736 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2022-12-13 11:06:50,737 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 18 transitions, 58 flow [2022-12-13 11:06:50,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 82.8) internal successors, (414), 5 states have internal predecessors, (414), 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 11:06:50,737 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:50,737 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:50,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:06:50,737 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 11:06:50,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:50,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1317545793, now seen corresponding path program 1 times [2022-12-13 11:06:50,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:50,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966648499] [2022-12-13 11:06:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:50,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:50,836 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 11:06:50,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:50,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966648499] [2022-12-13 11:06:50,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966648499] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:50,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:50,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:06:50,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563277708] [2022-12-13 11:06:50,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:50,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:06:50,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:50,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:06:50,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:06:50,858 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 197 [2022-12-13 11:06:50,859 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 18 transitions, 58 flow. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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 11:06:50,859 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:50,859 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 197 [2022-12-13 11:06:50,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:51,041 INFO L130 PetriNetUnfolder]: 674/1089 cut-off events. [2022-12-13 11:06:51,041 INFO L131 PetriNetUnfolder]: For 353/353 co-relation queries the response was YES. [2022-12-13 11:06:51,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2489 conditions, 1089 events. 674/1089 cut-off events. For 353/353 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4767 event pairs, 103 based on Foata normal form. 70/1159 useless extension candidates. Maximal degree in co-relation 2482. Up to 525 conditions per place. [2022-12-13 11:06:51,047 INFO L137 encePairwiseOnDemand]: 189/197 looper letters, 31 selfloop transitions, 8 changer transitions 22/61 dead transitions. [2022-12-13 11:06:51,047 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 61 transitions, 286 flow [2022-12-13 11:06:51,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:06:51,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 11:06:51,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 645 transitions. [2022-12-13 11:06:51,050 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4677302393038434 [2022-12-13 11:06:51,050 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 645 transitions. [2022-12-13 11:06:51,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 645 transitions. [2022-12-13 11:06:51,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:51,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 645 transitions. [2022-12-13 11:06:51,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 92.14285714285714) internal successors, (645), 7 states have internal predecessors, (645), 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 11:06:51,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 197.0) internal successors, (1576), 8 states have internal predecessors, (1576), 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 11:06:51,056 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 197.0) internal successors, (1576), 8 states have internal predecessors, (1576), 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 11:06:51,056 INFO L175 Difference]: Start difference. First operand has 36 places, 18 transitions, 58 flow. Second operand 7 states and 645 transitions. [2022-12-13 11:06:51,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 61 transitions, 286 flow [2022-12-13 11:06:51,063 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 61 transitions, 267 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-12-13 11:06:51,064 INFO L231 Difference]: Finished difference. Result has 40 places, 24 transitions, 114 flow [2022-12-13 11:06:51,064 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=114, PETRI_PLACES=40, PETRI_TRANSITIONS=24} [2022-12-13 11:06:51,065 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 5 predicate places. [2022-12-13 11:06:51,065 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 24 transitions, 114 flow [2022-12-13 11:06:51,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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 11:06:51,066 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:51,066 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:51,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 11:06:51,066 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 11:06:51,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:51,067 INFO L85 PathProgramCache]: Analyzing trace with hash 2060987091, now seen corresponding path program 1 times [2022-12-13 11:06:51,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:51,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214895832] [2022-12-13 11:06:51,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:51,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:51,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:06:51,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:51,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214895832] [2022-12-13 11:06:51,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214895832] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:51,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:51,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:06:51,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96100751] [2022-12-13 11:06:51,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:51,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:06:51,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:51,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:06:51,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:06:51,197 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 197 [2022-12-13 11:06:51,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 24 transitions, 114 flow. Second operand has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 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 11:06:51,198 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:51,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 197 [2022-12-13 11:06:51,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:51,379 INFO L130 PetriNetUnfolder]: 597/978 cut-off events. [2022-12-13 11:06:51,379 INFO L131 PetriNetUnfolder]: For 995/995 co-relation queries the response was YES. [2022-12-13 11:06:51,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2964 conditions, 978 events. 597/978 cut-off events. For 995/995 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 4383 event pairs, 79 based on Foata normal form. 48/1026 useless extension candidates. Maximal degree in co-relation 2954. Up to 543 conditions per place. [2022-12-13 11:06:51,384 INFO L137 encePairwiseOnDemand]: 189/197 looper letters, 38 selfloop transitions, 11 changer transitions 17/66 dead transitions. [2022-12-13 11:06:51,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 66 transitions, 408 flow [2022-12-13 11:06:51,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:06:51,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 11:06:51,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 641 transitions. [2022-12-13 11:06:51,387 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4648295866569978 [2022-12-13 11:06:51,387 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 641 transitions. [2022-12-13 11:06:51,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 641 transitions. [2022-12-13 11:06:51,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:51,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 641 transitions. [2022-12-13 11:06:51,389 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 91.57142857142857) internal successors, (641), 7 states have internal predecessors, (641), 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 11:06:51,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 197.0) internal successors, (1576), 8 states have internal predecessors, (1576), 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 11:06:51,392 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 197.0) internal successors, (1576), 8 states have internal predecessors, (1576), 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 11:06:51,392 INFO L175 Difference]: Start difference. First operand has 40 places, 24 transitions, 114 flow. Second operand 7 states and 641 transitions. [2022-12-13 11:06:51,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 66 transitions, 408 flow [2022-12-13 11:06:51,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 66 transitions, 396 flow, removed 6 selfloop flow, removed 2 redundant places. [2022-12-13 11:06:51,397 INFO L231 Difference]: Finished difference. Result has 47 places, 30 transitions, 209 flow [2022-12-13 11:06:51,398 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=209, PETRI_PLACES=47, PETRI_TRANSITIONS=30} [2022-12-13 11:06:51,398 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 12 predicate places. [2022-12-13 11:06:51,398 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 30 transitions, 209 flow [2022-12-13 11:06:51,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.2) internal successors, (426), 5 states have internal predecessors, (426), 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 11:06:51,399 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:51,399 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:51,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 11:06:51,399 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 11:06:51,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:51,400 INFO L85 PathProgramCache]: Analyzing trace with hash 851324769, now seen corresponding path program 1 times [2022-12-13 11:06:51,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:51,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268580085] [2022-12-13 11:06:51,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:51,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:51,513 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 11:06:51,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:51,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268580085] [2022-12-13 11:06:51,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268580085] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:51,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:51,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:06:51,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160444849] [2022-12-13 11:06:51,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:51,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:06:51,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:51,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:06:51,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:06:51,531 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 197 [2022-12-13 11:06:51,531 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 30 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 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 11:06:51,531 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:51,531 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 197 [2022-12-13 11:06:51,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:51,668 INFO L130 PetriNetUnfolder]: 620/1007 cut-off events. [2022-12-13 11:06:51,668 INFO L131 PetriNetUnfolder]: For 2209/2209 co-relation queries the response was YES. [2022-12-13 11:06:51,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3560 conditions, 1007 events. 620/1007 cut-off events. For 2209/2209 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4349 event pairs, 137 based on Foata normal form. 42/1049 useless extension candidates. Maximal degree in co-relation 3546. Up to 476 conditions per place. [2022-12-13 11:06:51,672 INFO L137 encePairwiseOnDemand]: 189/197 looper letters, 30 selfloop transitions, 9 changer transitions 22/61 dead transitions. [2022-12-13 11:06:51,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 61 transitions, 489 flow [2022-12-13 11:06:51,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:06:51,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 11:06:51,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 548 transitions. [2022-12-13 11:06:51,674 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46362098138747887 [2022-12-13 11:06:51,674 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 548 transitions. [2022-12-13 11:06:51,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 548 transitions. [2022-12-13 11:06:51,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:51,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 548 transitions. [2022-12-13 11:06:51,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.33333333333333) internal successors, (548), 6 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:06:51,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 197.0) internal successors, (1379), 7 states have internal predecessors, (1379), 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 11:06:51,676 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 197.0) internal successors, (1379), 7 states have internal predecessors, (1379), 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 11:06:51,677 INFO L175 Difference]: Start difference. First operand has 47 places, 30 transitions, 209 flow. Second operand 6 states and 548 transitions. [2022-12-13 11:06:51,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 61 transitions, 489 flow [2022-12-13 11:06:51,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 61 transitions, 473 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-12-13 11:06:51,680 INFO L231 Difference]: Finished difference. Result has 48 places, 26 transitions, 198 flow [2022-12-13 11:06:51,681 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=198, PETRI_PLACES=48, PETRI_TRANSITIONS=26} [2022-12-13 11:06:51,681 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 13 predicate places. [2022-12-13 11:06:51,681 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 26 transitions, 198 flow [2022-12-13 11:06:51,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.0) internal successors, (510), 6 states have internal predecessors, (510), 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 11:06:51,681 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:51,682 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:51,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 11:06:51,682 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 11:06:51,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:51,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1165096835, now seen corresponding path program 1 times [2022-12-13 11:06:51,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:51,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303271121] [2022-12-13 11:06:51,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:51,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:51,756 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 11:06:51,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:51,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303271121] [2022-12-13 11:06:51,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303271121] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:51,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:51,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:06:51,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687511325] [2022-12-13 11:06:51,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:51,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:06:51,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:51,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:06:51,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:06:51,780 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 197 [2022-12-13 11:06:51,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 26 transitions, 198 flow. Second operand has 5 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 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 11:06:51,781 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:51,781 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 197 [2022-12-13 11:06:51,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:51,905 INFO L130 PetriNetUnfolder]: 334/591 cut-off events. [2022-12-13 11:06:51,905 INFO L131 PetriNetUnfolder]: For 1421/1429 co-relation queries the response was YES. [2022-12-13 11:06:51,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2211 conditions, 591 events. 334/591 cut-off events. For 1421/1429 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2537 event pairs, 101 based on Foata normal form. 30/606 useless extension candidates. Maximal degree in co-relation 2196. Up to 199 conditions per place. [2022-12-13 11:06:51,908 INFO L137 encePairwiseOnDemand]: 192/197 looper letters, 21 selfloop transitions, 5 changer transitions 29/58 dead transitions. [2022-12-13 11:06:51,908 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 58 transitions, 438 flow [2022-12-13 11:06:51,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:06:51,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 11:06:51,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 836 transitions. [2022-12-13 11:06:51,910 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4715172024816695 [2022-12-13 11:06:51,910 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 836 transitions. [2022-12-13 11:06:51,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 836 transitions. [2022-12-13 11:06:51,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:51,911 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 836 transitions. [2022-12-13 11:06:51,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 92.88888888888889) internal successors, (836), 9 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:06:51,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 197.0) internal successors, (1970), 10 states have internal predecessors, (1970), 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 11:06:51,914 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 197.0) internal successors, (1970), 10 states have internal predecessors, (1970), 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 11:06:51,914 INFO L175 Difference]: Start difference. First operand has 48 places, 26 transitions, 198 flow. Second operand 9 states and 836 transitions. [2022-12-13 11:06:51,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 58 transitions, 438 flow [2022-12-13 11:06:51,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 58 transitions, 398 flow, removed 10 selfloop flow, removed 6 redundant places. [2022-12-13 11:06:51,918 INFO L231 Difference]: Finished difference. Result has 56 places, 24 transitions, 179 flow [2022-12-13 11:06:51,918 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=179, PETRI_PLACES=56, PETRI_TRANSITIONS=24} [2022-12-13 11:06:51,918 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 21 predicate places. [2022-12-13 11:06:51,918 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 24 transitions, 179 flow [2022-12-13 11:06:51,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 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 11:06:51,919 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:51,919 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:51,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 11:06:51,919 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 11:06:51,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:51,919 INFO L85 PathProgramCache]: Analyzing trace with hash -635043099, now seen corresponding path program 1 times [2022-12-13 11:06:51,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:51,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127954857] [2022-12-13 11:06:51,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:51,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:52,006 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 11:06:52,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:52,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127954857] [2022-12-13 11:06:52,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127954857] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:52,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:52,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:06:52,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715973137] [2022-12-13 11:06:52,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:52,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:06:52,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:52,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:06:52,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:06:52,020 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 197 [2022-12-13 11:06:52,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 24 transitions, 179 flow. Second operand has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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 11:06:52,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:52,020 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 197 [2022-12-13 11:06:52,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:52,093 INFO L130 PetriNetUnfolder]: 149/297 cut-off events. [2022-12-13 11:06:52,093 INFO L131 PetriNetUnfolder]: For 1067/1094 co-relation queries the response was YES. [2022-12-13 11:06:52,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1029 conditions, 297 events. 149/297 cut-off events. For 1067/1094 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1269 event pairs, 40 based on Foata normal form. 9/291 useless extension candidates. Maximal degree in co-relation 1010. Up to 184 conditions per place. [2022-12-13 11:06:52,095 INFO L137 encePairwiseOnDemand]: 191/197 looper letters, 32 selfloop transitions, 7 changer transitions 3/50 dead transitions. [2022-12-13 11:06:52,095 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 50 transitions, 395 flow [2022-12-13 11:06:52,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:06:52,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:06:52,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 480 transitions. [2022-12-13 11:06:52,096 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4873096446700508 [2022-12-13 11:06:52,096 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 480 transitions. [2022-12-13 11:06:52,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 480 transitions. [2022-12-13 11:06:52,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:52,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 480 transitions. [2022-12-13 11:06:52,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 96.0) internal successors, (480), 5 states have internal predecessors, (480), 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 11:06:52,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 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 11:06:52,099 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 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 11:06:52,099 INFO L175 Difference]: Start difference. First operand has 56 places, 24 transitions, 179 flow. Second operand 5 states and 480 transitions. [2022-12-13 11:06:52,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 50 transitions, 395 flow [2022-12-13 11:06:52,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 50 transitions, 363 flow, removed 6 selfloop flow, removed 9 redundant places. [2022-12-13 11:06:52,101 INFO L231 Difference]: Finished difference. Result has 48 places, 30 transitions, 204 flow [2022-12-13 11:06:52,101 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=204, PETRI_PLACES=48, PETRI_TRANSITIONS=30} [2022-12-13 11:06:52,102 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 13 predicate places. [2022-12-13 11:06:52,102 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 30 transitions, 204 flow [2022-12-13 11:06:52,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.0) internal successors, (364), 4 states have internal predecessors, (364), 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 11:06:52,102 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:52,102 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:52,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 11:06:52,102 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 11:06:52,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:52,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1787698914, now seen corresponding path program 1 times [2022-12-13 11:06:52,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:52,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728087698] [2022-12-13 11:06:52,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:52,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:52,187 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 11:06:52,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:52,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728087698] [2022-12-13 11:06:52,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728087698] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:52,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:52,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:06:52,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946986573] [2022-12-13 11:06:52,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:52,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:06:52,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:52,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:06:52,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:06:52,206 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 197 [2022-12-13 11:06:52,207 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 30 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 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 11:06:52,207 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:52,207 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 197 [2022-12-13 11:06:52,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:52,310 INFO L130 PetriNetUnfolder]: 124/269 cut-off events. [2022-12-13 11:06:52,310 INFO L131 PetriNetUnfolder]: For 908/958 co-relation queries the response was YES. [2022-12-13 11:06:52,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1146 conditions, 269 events. 124/269 cut-off events. For 908/958 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1215 event pairs, 16 based on Foata normal form. 22/278 useless extension candidates. Maximal degree in co-relation 1130. Up to 133 conditions per place. [2022-12-13 11:06:52,312 INFO L137 encePairwiseOnDemand]: 191/197 looper letters, 37 selfloop transitions, 13 changer transitions 6/64 dead transitions. [2022-12-13 11:06:52,312 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 64 transitions, 550 flow [2022-12-13 11:06:52,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:06:52,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 11:06:52,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 668 transitions. [2022-12-13 11:06:52,314 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4844089920232052 [2022-12-13 11:06:52,314 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 668 transitions. [2022-12-13 11:06:52,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 668 transitions. [2022-12-13 11:06:52,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:52,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 668 transitions. [2022-12-13 11:06:52,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 95.42857142857143) internal successors, (668), 7 states have internal predecessors, (668), 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 11:06:52,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 197.0) internal successors, (1576), 8 states have internal predecessors, (1576), 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 11:06:52,317 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 197.0) internal successors, (1576), 8 states have internal predecessors, (1576), 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 11:06:52,317 INFO L175 Difference]: Start difference. First operand has 48 places, 30 transitions, 204 flow. Second operand 7 states and 668 transitions. [2022-12-13 11:06:52,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 64 transitions, 550 flow [2022-12-13 11:06:52,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 64 transitions, 546 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:06:52,319 INFO L231 Difference]: Finished difference. Result has 56 places, 36 transitions, 288 flow [2022-12-13 11:06:52,320 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=288, PETRI_PLACES=56, PETRI_TRANSITIONS=36} [2022-12-13 11:06:52,320 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 21 predicate places. [2022-12-13 11:06:52,320 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 36 transitions, 288 flow [2022-12-13 11:06:52,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.6) internal successors, (453), 5 states have internal predecessors, (453), 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 11:06:52,320 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:52,320 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:52,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 11:06:52,321 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 11:06:52,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:52,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1348741592, now seen corresponding path program 1 times [2022-12-13 11:06:52,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:52,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649686919] [2022-12-13 11:06:52,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:52,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:52,404 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 11:06:52,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:52,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649686919] [2022-12-13 11:06:52,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649686919] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:52,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:52,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:06:52,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944988846] [2022-12-13 11:06:52,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:52,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:06:52,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:52,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:06:52,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:06:52,421 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 197 [2022-12-13 11:06:52,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 36 transitions, 288 flow. Second operand has 6 states, 6 states have (on average 90.33333333333333) internal successors, (542), 6 states have internal predecessors, (542), 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 11:06:52,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:52,422 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 197 [2022-12-13 11:06:52,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:52,544 INFO L130 PetriNetUnfolder]: 107/242 cut-off events. [2022-12-13 11:06:52,544 INFO L131 PetriNetUnfolder]: For 1108/1163 co-relation queries the response was YES. [2022-12-13 11:06:52,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1199 conditions, 242 events. 107/242 cut-off events. For 1108/1163 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1119 event pairs, 11 based on Foata normal form. 22/252 useless extension candidates. Maximal degree in co-relation 1180. Up to 117 conditions per place. [2022-12-13 11:06:52,546 INFO L137 encePairwiseOnDemand]: 191/197 looper letters, 34 selfloop transitions, 17 changer transitions 5/64 dead transitions. [2022-12-13 11:06:52,546 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 64 transitions, 608 flow [2022-12-13 11:06:52,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 11:06:52,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 11:06:52,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 844 transitions. [2022-12-13 11:06:52,548 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.476029328821207 [2022-12-13 11:06:52,548 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 844 transitions. [2022-12-13 11:06:52,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 844 transitions. [2022-12-13 11:06:52,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:52,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 844 transitions. [2022-12-13 11:06:52,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 93.77777777777777) internal successors, (844), 9 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:06:52,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 197.0) internal successors, (1970), 10 states have internal predecessors, (1970), 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 11:06:52,551 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 197.0) internal successors, (1970), 10 states have internal predecessors, (1970), 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 11:06:52,551 INFO L175 Difference]: Start difference. First operand has 56 places, 36 transitions, 288 flow. Second operand 9 states and 844 transitions. [2022-12-13 11:06:52,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 64 transitions, 608 flow [2022-12-13 11:06:52,554 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 574 flow, removed 13 selfloop flow, removed 3 redundant places. [2022-12-13 11:06:52,555 INFO L231 Difference]: Finished difference. Result has 64 places, 37 transitions, 310 flow [2022-12-13 11:06:52,555 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=310, PETRI_PLACES=64, PETRI_TRANSITIONS=37} [2022-12-13 11:06:52,555 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 29 predicate places. [2022-12-13 11:06:52,556 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 37 transitions, 310 flow [2022-12-13 11:06:52,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.33333333333333) internal successors, (542), 6 states have internal predecessors, (542), 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 11:06:52,556 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:52,556 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:52,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 11:06:52,556 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 11:06:52,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:52,557 INFO L85 PathProgramCache]: Analyzing trace with hash 74914607, now seen corresponding path program 1 times [2022-12-13 11:06:52,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:52,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176320086] [2022-12-13 11:06:52,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:52,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:52,640 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 11:06:52,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:52,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176320086] [2022-12-13 11:06:52,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176320086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:52,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:52,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:06:52,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240765934] [2022-12-13 11:06:52,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:52,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:06:52,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:52,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:06:52,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:06:52,664 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 197 [2022-12-13 11:06:52,665 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 37 transitions, 310 flow. Second operand has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 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 11:06:52,665 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:52,665 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 197 [2022-12-13 11:06:52,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:52,764 INFO L130 PetriNetUnfolder]: 203/414 cut-off events. [2022-12-13 11:06:52,764 INFO L131 PetriNetUnfolder]: For 1742/1742 co-relation queries the response was YES. [2022-12-13 11:06:52,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2096 conditions, 414 events. 203/414 cut-off events. For 1742/1742 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1851 event pairs, 24 based on Foata normal form. 1/415 useless extension candidates. Maximal degree in co-relation 2074. Up to 249 conditions per place. [2022-12-13 11:06:52,766 INFO L137 encePairwiseOnDemand]: 189/197 looper letters, 36 selfloop transitions, 9 changer transitions 28/73 dead transitions. [2022-12-13 11:06:52,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 73 transitions, 731 flow [2022-12-13 11:06:52,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:06:52,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 11:06:52,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 527 transitions. [2022-12-13 11:06:52,768 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44585448392554994 [2022-12-13 11:06:52,768 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 527 transitions. [2022-12-13 11:06:52,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 527 transitions. [2022-12-13 11:06:52,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:52,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 527 transitions. [2022-12-13 11:06:52,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 87.83333333333333) internal successors, (527), 6 states have internal predecessors, (527), 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 11:06:52,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 197.0) internal successors, (1379), 7 states have internal predecessors, (1379), 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 11:06:52,772 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 197.0) internal successors, (1379), 7 states have internal predecessors, (1379), 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 11:06:52,772 INFO L175 Difference]: Start difference. First operand has 64 places, 37 transitions, 310 flow. Second operand 6 states and 527 transitions. [2022-12-13 11:06:52,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 73 transitions, 731 flow [2022-12-13 11:06:52,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 73 transitions, 608 flow, removed 28 selfloop flow, removed 8 redundant places. [2022-12-13 11:06:52,777 INFO L231 Difference]: Finished difference. Result has 63 places, 32 transitions, 247 flow [2022-12-13 11:06:52,777 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=247, PETRI_PLACES=63, PETRI_TRANSITIONS=32} [2022-12-13 11:06:52,778 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 28 predicate places. [2022-12-13 11:06:52,778 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 32 transitions, 247 flow [2022-12-13 11:06:52,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 84.6) internal successors, (423), 5 states have internal predecessors, (423), 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 11:06:52,778 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:06:52,778 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:52,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 11:06:52,778 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-12-13 11:06:52,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:06:52,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1904235669, now seen corresponding path program 2 times [2022-12-13 11:06:52,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:06:52,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347285080] [2022-12-13 11:06:52,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:06:52,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:06:52,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:06:52,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:06:52,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:06:52,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347285080] [2022-12-13 11:06:52,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347285080] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:06:52,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:06:52,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:06:52,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754779247] [2022-12-13 11:06:52,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:06:52,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:06:52,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:06:52,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:06:52,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:06:52,886 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 197 [2022-12-13 11:06:52,886 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 32 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 86.0) internal successors, (516), 6 states have internal predecessors, (516), 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 11:06:52,886 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:06:52,886 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 197 [2022-12-13 11:06:52,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:06:52,931 INFO L130 PetriNetUnfolder]: 101/203 cut-off events. [2022-12-13 11:06:52,931 INFO L131 PetriNetUnfolder]: For 650/650 co-relation queries the response was YES. [2022-12-13 11:06:52,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 956 conditions, 203 events. 101/203 cut-off events. For 650/650 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 629 event pairs, 40 based on Foata normal form. 1/204 useless extension candidates. Maximal degree in co-relation 934. Up to 133 conditions per place. [2022-12-13 11:06:52,932 INFO L137 encePairwiseOnDemand]: 193/197 looper letters, 0 selfloop transitions, 0 changer transitions 35/35 dead transitions. [2022-12-13 11:06:52,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 35 transitions, 334 flow [2022-12-13 11:06:52,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:06:52,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 11:06:52,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 437 transitions. [2022-12-13 11:06:52,933 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4436548223350254 [2022-12-13 11:06:52,933 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 437 transitions. [2022-12-13 11:06:52,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 437 transitions. [2022-12-13 11:06:52,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:06:52,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 437 transitions. [2022-12-13 11:06:52,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 87.4) internal successors, (437), 5 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 11:06:52,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 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 11:06:52,935 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 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 11:06:52,935 INFO L175 Difference]: Start difference. First operand has 63 places, 32 transitions, 247 flow. Second operand 5 states and 437 transitions. [2022-12-13 11:06:52,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 35 transitions, 334 flow [2022-12-13 11:06:52,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 35 transitions, 291 flow, removed 11 selfloop flow, removed 9 redundant places. [2022-12-13 11:06:52,937 INFO L231 Difference]: Finished difference. Result has 51 places, 0 transitions, 0 flow [2022-12-13 11:06:52,937 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=197, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=51, PETRI_TRANSITIONS=0} [2022-12-13 11:06:52,938 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, 16 predicate places. [2022-12-13 11:06:52,938 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 0 transitions, 0 flow [2022-12-13 11:06:52,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 86.0) internal successors, (516), 6 states have internal predecessors, (516), 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 11:06:52,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2022-12-13 11:06:52,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2022-12-13 11:06:52,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2022-12-13 11:06:52,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2022-12-13 11:06:52,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2022-12-13 11:06:52,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2022-12-13 11:06:52,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2022-12-13 11:06:52,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2022-12-13 11:06:52,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2022-12-13 11:06:52,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2022-12-13 11:06:52,941 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2022-12-13 11:06:52,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 11:06:52,941 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:06:52,944 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 11:06:52,944 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:06:52,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:06:52 BasicIcfg [2022-12-13 11:06:52,946 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:06:52,947 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:06:52,947 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:06:52,947 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:06:52,947 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:06:47" (3/4) ... [2022-12-13 11:06:52,949 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 11:06:52,954 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-13 11:06:52,954 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-13 11:06:52,954 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-13 11:06:52,957 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-13 11:06:52,957 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 11:06:52,957 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 11:06:52,957 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 11:06:52,978 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75bf825-7614-48bf-b3cd-bdaa84dca869/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 11:06:52,978 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:06:52,978 INFO L158 Benchmark]: Toolchain (without parser) took 6016.47ms. Allocated memory was 180.4MB in the beginning and 226.5MB in the end (delta: 46.1MB). Free memory was 142.0MB in the beginning and 143.2MB in the end (delta: -1.3MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2022-12-13 11:06:52,979 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 180.4MB. Free memory is still 151.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:06:52,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.19ms. Allocated memory is still 180.4MB. Free memory was 142.0MB in the beginning and 118.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-13 11:06:52,979 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.72ms. Allocated memory is still 180.4MB. Free memory was 118.9MB in the beginning and 116.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:06:52,979 INFO L158 Benchmark]: Boogie Preprocessor took 22.15ms. Allocated memory is still 180.4MB. Free memory was 116.8MB in the beginning and 115.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:06:52,979 INFO L158 Benchmark]: RCFGBuilder took 316.02ms. Allocated memory is still 180.4MB. Free memory was 115.3MB in the beginning and 100.8MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 11:06:52,980 INFO L158 Benchmark]: TraceAbstraction took 5236.06ms. Allocated memory was 180.4MB in the beginning and 226.5MB in the end (delta: 46.1MB). Free memory was 100.0MB in the beginning and 145.3MB in the end (delta: -45.3MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2022-12-13 11:06:52,980 INFO L158 Benchmark]: Witness Printer took 31.41ms. Allocated memory is still 226.5MB. Free memory was 145.3MB in the beginning and 143.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:06:52,981 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 180.4MB. Free memory is still 151.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 369.19ms. Allocated memory is still 180.4MB. Free memory was 142.0MB in the beginning and 118.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.72ms. Allocated memory is still 180.4MB. Free memory was 118.9MB in the beginning and 116.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.15ms. Allocated memory is still 180.4MB. Free memory was 116.8MB in the beginning and 115.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 316.02ms. Allocated memory is still 180.4MB. Free memory was 115.3MB in the beginning and 100.8MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5236.06ms. Allocated memory was 180.4MB in the beginning and 226.5MB in the end (delta: 46.1MB). Free memory was 100.0MB in the beginning and 145.3MB in the end (delta: -45.3MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * Witness Printer took 31.41ms. Allocated memory is still 226.5MB. Free memory was 145.3MB in the beginning and 143.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 102 PlacesBefore, 35 PlacesAfterwards, 94 TransitionsBefore, 26 TransitionsAfterwards, 1620 CoEnabledTransitionPairs, 5 FixpointIterations, 34 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 95 TotalNumberOfCompositions, 2916 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1853, independent: 1774, independent conditional: 0, independent unconditional: 1774, dependent: 79, dependent conditional: 0, dependent unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 885, independent: 858, independent conditional: 0, independent unconditional: 858, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1853, independent: 916, independent conditional: 0, independent unconditional: 916, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 885, unknown conditional: 0, unknown unconditional: 885] , Statistics on independence cache: Total cache size (in pairs): 76, Positive cache size: 66, Positive conditional cache size: 0, Positive unconditional cache size: 66, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 125 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.1s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 602 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 462 mSDsluCounter, 241 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 171 mSDsCounter, 89 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1070 IncrementalHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 89 mSolverCounterUnsat, 70 mSDtfsCounter, 1070 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=310occurred in iteration=10, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 699 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 11:06:52,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e75bf825-7614-48bf-b3cd-bdaa84dca869/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