./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix043.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/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_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix043.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/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_d6e4088d-a6cf-45a4-9052-142d574c5aae/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 8b566ddb7b309d9ba7ea7e298fcc3be9218751e5387d333007519a12118bc5db --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 19:08:50,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:08:50,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:08:50,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:08:50,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:08:50,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:08:50,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:08:50,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:08:50,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:08:50,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:08:50,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:08:50,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:08:50,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:08:50,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:08:50,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:08:50,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:08:50,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:08:50,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:08:50,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:08:50,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:08:50,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:08:50,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:08:50,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:08:50,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:08:50,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:08:50,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:08:50,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:08:50,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:08:50,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:08:50,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:08:50,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:08:50,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:08:50,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:08:50,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:08:50,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:08:50,961 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:08:50,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:08:50,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:08:50,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:08:50,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:08:50,962 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:08:50,963 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 19:08:50,984 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:08:50,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:08:50,984 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:08:50,984 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:08:50,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:08:50,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:08:50,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:08:50,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:08:50,986 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:08:50,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:08:50,986 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:08:50,986 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:08:50,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:08:50,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:08:50,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:08:50,987 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 19:08:50,987 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 19:08:50,987 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 19:08:50,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:08:50,988 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 19:08:50,988 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:08:50,988 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:08:50,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:08:50,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:08:50,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:08:50,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:08:50,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:08:50,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:08:50,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:08:50,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:08:50,989 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:08:50,990 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:08:50,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:08:50,990 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:08:50,990 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_d6e4088d-a6cf-45a4-9052-142d574c5aae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b566ddb7b309d9ba7ea7e298fcc3be9218751e5387d333007519a12118bc5db [2022-12-13 19:08:51,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:08:51,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:08:51,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:08:51,172 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:08:51,172 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:08:51,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix043.opt.i [2022-12-13 19:08:53,761 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:08:53,924 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:08:53,924 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/sv-benchmarks/c/pthread-wmm/mix043.opt.i [2022-12-13 19:08:53,933 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/data/906f98f1e/5b0ce7ee80a04360a85a6bce04cfe218/FLAGead8a635b [2022-12-13 19:08:53,943 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/data/906f98f1e/5b0ce7ee80a04360a85a6bce04cfe218 [2022-12-13 19:08:53,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:08:53,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:08:53,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:08:53,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:08:53,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:08:53,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:08:53" (1/1) ... [2022-12-13 19:08:53,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@587721fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:53, skipping insertion in model container [2022-12-13 19:08:53,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:08:53" (1/1) ... [2022-12-13 19:08:53,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:08:53,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:08:54,096 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_d6e4088d-a6cf-45a4-9052-142d574c5aae/sv-benchmarks/c/pthread-wmm/mix043.opt.i[944,957] [2022-12-13 19:08:54,205 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,205 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,206 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,207 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,207 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,207 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,207 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,208 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,208 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,208 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,208 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,208 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,209 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,212 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,212 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,212 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,213 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,214 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,215 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,216 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,217 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,218 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,223 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,224 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,226 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,232 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:08:54,241 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:08:54,252 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_d6e4088d-a6cf-45a4-9052-142d574c5aae/sv-benchmarks/c/pthread-wmm/mix043.opt.i[944,957] [2022-12-13 19:08:54,274 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,274 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,274 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,276 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,277 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,278 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,279 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,282 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,282 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,282 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,283 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,284 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,284 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,289 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:08:54,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:08:54,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:08:54,339 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:08:54,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54 WrapperNode [2022-12-13 19:08:54,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:08:54,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:08:54,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:08:54,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:08:54,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,374 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 167 [2022-12-13 19:08:54,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:08:54,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:08:54,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:08:54,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:08:54,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,398 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:08:54,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:08:54,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:08:54,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:08:54,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (1/1) ... [2022-12-13 19:08:54,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:08:54,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:08:54,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:08:54,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:08:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 19:08:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 19:08:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:08:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:08:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:08:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 19:08:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 19:08:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 19:08:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 19:08:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 19:08:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 19:08:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 19:08:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 19:08:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:08:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 19:08:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:08:54,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:08:54,481 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 19:08:54,598 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:08:54,601 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:08:54,881 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:08:54,957 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:08:54,957 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:08:54,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:08:54 BoogieIcfgContainer [2022-12-13 19:08:54,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:08:54,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:08:54,961 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:08:54,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:08:54,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:08:53" (1/3) ... [2022-12-13 19:08:54,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d433c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:08:54, skipping insertion in model container [2022-12-13 19:08:54,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:08:54" (2/3) ... [2022-12-13 19:08:54,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d433c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:08:54, skipping insertion in model container [2022-12-13 19:08:54,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:08:54" (3/3) ... [2022-12-13 19:08:54,965 INFO L112 eAbstractionObserver]: Analyzing ICFG mix043.opt.i [2022-12-13 19:08:54,979 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:08:54,979 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 19:08:54,979 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 19:08:55,023 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 19:08:55,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 150 transitions, 320 flow [2022-12-13 19:08:55,107 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-12-13 19:08:55,107 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:08:55,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 105 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-12-13 19:08:55,113 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 150 transitions, 320 flow [2022-12-13 19:08:55,116 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 146 transitions, 304 flow [2022-12-13 19:08:55,119 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 19:08:55,127 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 146 transitions, 304 flow [2022-12-13 19:08:55,129 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 146 transitions, 304 flow [2022-12-13 19:08:55,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 146 transitions, 304 flow [2022-12-13 19:08:55,151 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-12-13 19:08:55,151 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:08:55,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 105 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-12-13 19:08:55,153 INFO L119 LiptonReduction]: Number of co-enabled transitions 3490 [2022-12-13 19:08:58,986 INFO L134 LiptonReduction]: Checked pairs total: 9142 [2022-12-13 19:08:58,986 INFO L136 LiptonReduction]: Total number of compositions: 140 [2022-12-13 19:08:58,996 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:08:59,000 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;@474dd911, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:08:59,001 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-13 19:08:59,002 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 19:08:59,002 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:08:59,002 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:08:59,003 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 19:08:59,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:08:59,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:59,006 INFO L85 PathProgramCache]: Analyzing trace with hash 607, now seen corresponding path program 1 times [2022-12-13 19:08:59,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:59,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457699417] [2022-12-13 19:08:59,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:59,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:08:59,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:08:59,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:08:59,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457699417] [2022-12-13 19:08:59,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457699417] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:08:59,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:08:59,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 19:08:59,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473393485] [2022-12-13 19:08:59,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:08:59,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 19:08:59,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:08:59,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 19:08:59,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:08:59,118 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 290 [2022-12-13 19:08:59,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 92 flow. Second operand has 2 states, 2 states have (on average 137.5) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:59,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:08:59,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 290 [2022-12-13 19:08:59,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:08:59,777 INFO L130 PetriNetUnfolder]: 5003/6953 cut-off events. [2022-12-13 19:08:59,777 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-12-13 19:08:59,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13885 conditions, 6953 events. 5003/6953 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 36426 event pairs, 5003 based on Foata normal form. 216/6184 useless extension candidates. Maximal degree in co-relation 13873. Up to 6829 conditions per place. [2022-12-13 19:08:59,820 INFO L137 encePairwiseOnDemand]: 281/290 looper letters, 27 selfloop transitions, 0 changer transitions 0/31 dead transitions. [2022-12-13 19:08:59,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 128 flow [2022-12-13 19:08:59,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 19:08:59,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 19:08:59,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 310 transitions. [2022-12-13 19:08:59,830 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2022-12-13 19:08:59,831 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 310 transitions. [2022-12-13 19:08:59,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 310 transitions. [2022-12-13 19:08:59,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:08:59,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 310 transitions. [2022-12-13 19:08:59,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 155.0) internal successors, (310), 2 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:59,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:59,839 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:59,840 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 92 flow. Second operand 2 states and 310 transitions. [2022-12-13 19:08:59,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 128 flow [2022-12-13 19:08:59,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 31 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 19:08:59,845 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 70 flow [2022-12-13 19:08:59,846 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, 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=2, PETRI_FLOW=70, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2022-12-13 19:08:59,849 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -11 predicate places. [2022-12-13 19:08:59,849 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 70 flow [2022-12-13 19:08:59,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 137.5) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:08:59,849 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:08:59,850 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:08:59,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:08:59,850 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:08:59,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:08:59,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1190794488, now seen corresponding path program 1 times [2022-12-13 19:08:59,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:08:59,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598714136] [2022-12-13 19:08:59,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:08:59,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:08:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:00,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:00,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:00,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598714136] [2022-12-13 19:09:00,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598714136] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:00,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:00,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 19:09:00,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014444144] [2022-12-13 19:09:00,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:00,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:09:00,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:00,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:09:00,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:09:00,137 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 290 [2022-12-13 19:09:00,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:00,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:00,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 290 [2022-12-13 19:09:00,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:00,637 INFO L130 PetriNetUnfolder]: 4151/5993 cut-off events. [2022-12-13 19:09:00,637 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:09:00,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11782 conditions, 5993 events. 4151/5993 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 33806 event pairs, 743 based on Foata normal form. 0/5440 useless extension candidates. Maximal degree in co-relation 11779. Up to 4561 conditions per place. [2022-12-13 19:09:00,655 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 34 selfloop transitions, 2 changer transitions 4/44 dead transitions. [2022-12-13 19:09:00,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 44 transitions, 176 flow [2022-12-13 19:09:00,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:09:00,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:09:00,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions. [2022-12-13 19:09:00,658 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5160919540229885 [2022-12-13 19:09:00,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 449 transitions. [2022-12-13 19:09:00,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 449 transitions. [2022-12-13 19:09:00,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:00,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 449 transitions. [2022-12-13 19:09:00,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:00,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:00,664 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:00,664 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 70 flow. Second operand 3 states and 449 transitions. [2022-12-13 19:09:00,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 44 transitions, 176 flow [2022-12-13 19:09:00,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 44 transitions, 176 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 19:09:00,665 INFO L231 Difference]: Finished difference. Result has 42 places, 28 transitions, 68 flow [2022-12-13 19:09:00,665 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=42, PETRI_TRANSITIONS=28} [2022-12-13 19:09:00,666 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -10 predicate places. [2022-12-13 19:09:00,666 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 28 transitions, 68 flow [2022-12-13 19:09:00,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:00,667 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:00,667 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:00,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:09:00,667 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:00,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:00,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1468723992, now seen corresponding path program 1 times [2022-12-13 19:09:00,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:00,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621530824] [2022-12-13 19:09:00,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:00,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:01,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:01,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:01,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621530824] [2022-12-13 19:09:01,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621530824] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:01,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:01,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:09:01,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957105741] [2022-12-13 19:09:01,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:01,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:09:01,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:01,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:09:01,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:09:01,562 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 290 [2022-12-13 19:09:01,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 28 transitions, 68 flow. Second operand has 7 states, 7 states have (on average 120.71428571428571) internal successors, (845), 7 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:01,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:01,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 290 [2022-12-13 19:09:01,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:02,041 INFO L130 PetriNetUnfolder]: 2594/3781 cut-off events. [2022-12-13 19:09:02,041 INFO L131 PetriNetUnfolder]: For 144/144 co-relation queries the response was YES. [2022-12-13 19:09:02,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7655 conditions, 3781 events. 2594/3781 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 19770 event pairs, 156 based on Foata normal form. 0/3781 useless extension candidates. Maximal degree in co-relation 7651. Up to 2097 conditions per place. [2022-12-13 19:09:02,053 INFO L137 encePairwiseOnDemand]: 284/290 looper letters, 42 selfloop transitions, 5 changer transitions 0/51 dead transitions. [2022-12-13 19:09:02,054 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 51 transitions, 208 flow [2022-12-13 19:09:02,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:09:02,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 19:09:02,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 882 transitions. [2022-12-13 19:09:02,057 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43448275862068964 [2022-12-13 19:09:02,057 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 882 transitions. [2022-12-13 19:09:02,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 882 transitions. [2022-12-13 19:09:02,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:02,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 882 transitions. [2022-12-13 19:09:02,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 126.0) internal successors, (882), 7 states have internal predecessors, (882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:02,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:02,065 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:02,066 INFO L175 Difference]: Start difference. First operand has 42 places, 28 transitions, 68 flow. Second operand 7 states and 882 transitions. [2022-12-13 19:09:02,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 51 transitions, 208 flow [2022-12-13 19:09:02,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 51 transitions, 204 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:09:02,069 INFO L231 Difference]: Finished difference. Result has 43 places, 27 transitions, 72 flow [2022-12-13 19:09:02,069 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=72, PETRI_PLACES=43, PETRI_TRANSITIONS=27} [2022-12-13 19:09:02,070 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -9 predicate places. [2022-12-13 19:09:02,070 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 27 transitions, 72 flow [2022-12-13 19:09:02,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 120.71428571428571) internal successors, (845), 7 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:02,071 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:02,071 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:02,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 19:09:02,071 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:02,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:02,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1468724052, now seen corresponding path program 1 times [2022-12-13 19:09:02,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:02,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919795488] [2022-12-13 19:09:02,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:02,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:02,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:02,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:02,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:02,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919795488] [2022-12-13 19:09:02,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919795488] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:02,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:02,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:09:02,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211841958] [2022-12-13 19:09:02,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:02,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:09:02,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:02,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:09:02,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:09:02,411 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 290 [2022-12-13 19:09:02,412 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 27 transitions, 72 flow. Second operand has 5 states, 5 states have (on average 126.4) internal successors, (632), 5 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:02,412 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:02,412 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 290 [2022-12-13 19:09:02,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:03,049 INFO L130 PetriNetUnfolder]: 5975/8216 cut-off events. [2022-12-13 19:09:03,049 INFO L131 PetriNetUnfolder]: For 281/281 co-relation queries the response was YES. [2022-12-13 19:09:03,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16923 conditions, 8216 events. 5975/8216 cut-off events. For 281/281 co-relation queries the response was YES. Maximal size of possible extension queue 327. Compared 38965 event pairs, 1655 based on Foata normal form. 384/8580 useless extension candidates. Maximal degree in co-relation 16919. Up to 5057 conditions per place. [2022-12-13 19:09:03,073 INFO L137 encePairwiseOnDemand]: 286/290 looper letters, 35 selfloop transitions, 2 changer transitions 24/62 dead transitions. [2022-12-13 19:09:03,073 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 62 transitions, 266 flow [2022-12-13 19:09:03,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:09:03,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:09:03,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 683 transitions. [2022-12-13 19:09:03,075 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4710344827586207 [2022-12-13 19:09:03,075 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 683 transitions. [2022-12-13 19:09:03,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 683 transitions. [2022-12-13 19:09:03,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:03,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 683 transitions. [2022-12-13 19:09:03,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.6) internal successors, (683), 5 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:03,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 290.0) internal successors, (1740), 6 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:03,079 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 290.0) internal successors, (1740), 6 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:03,079 INFO L175 Difference]: Start difference. First operand has 43 places, 27 transitions, 72 flow. Second operand 5 states and 683 transitions. [2022-12-13 19:09:03,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 62 transitions, 266 flow [2022-12-13 19:09:03,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 62 transitions, 256 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 19:09:03,081 INFO L231 Difference]: Finished difference. Result has 45 places, 27 transitions, 75 flow [2022-12-13 19:09:03,081 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=75, PETRI_PLACES=45, PETRI_TRANSITIONS=27} [2022-12-13 19:09:03,081 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -7 predicate places. [2022-12-13 19:09:03,081 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 27 transitions, 75 flow [2022-12-13 19:09:03,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 126.4) internal successors, (632), 5 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:03,082 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:03,082 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:03,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 19:09:03,082 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:03,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:03,082 INFO L85 PathProgramCache]: Analyzing trace with hash -285230162, now seen corresponding path program 1 times [2022-12-13 19:09:03,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:03,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882015370] [2022-12-13 19:09:03,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:03,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:04,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:04,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:04,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882015370] [2022-12-13 19:09:04,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882015370] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:04,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:04,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:09:04,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778941719] [2022-12-13 19:09:04,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:04,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:09:04,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:04,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:09:04,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:09:04,112 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 290 [2022-12-13 19:09:04,113 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 27 transitions, 75 flow. Second operand has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:04,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:04,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 290 [2022-12-13 19:09:04,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:05,102 INFO L130 PetriNetUnfolder]: 7991/10880 cut-off events. [2022-12-13 19:09:05,102 INFO L131 PetriNetUnfolder]: For 1712/1712 co-relation queries the response was YES. [2022-12-13 19:09:05,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24010 conditions, 10880 events. 7991/10880 cut-off events. For 1712/1712 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 49874 event pairs, 1399 based on Foata normal form. 320/11200 useless extension candidates. Maximal degree in co-relation 24003. Up to 7657 conditions per place. [2022-12-13 19:09:05,136 INFO L137 encePairwiseOnDemand]: 280/290 looper letters, 63 selfloop transitions, 14 changer transitions 34/111 dead transitions. [2022-12-13 19:09:05,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 111 transitions, 481 flow [2022-12-13 19:09:05,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 19:09:05,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 19:09:05,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1194 transitions. [2022-12-13 19:09:05,139 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4574712643678161 [2022-12-13 19:09:05,139 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1194 transitions. [2022-12-13 19:09:05,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1194 transitions. [2022-12-13 19:09:05,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:05,140 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1194 transitions. [2022-12-13 19:09:05,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 132.66666666666666) internal successors, (1194), 9 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:05,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 290.0) internal successors, (2900), 10 states have internal predecessors, (2900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:05,145 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 290.0) internal successors, (2900), 10 states have internal predecessors, (2900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:05,145 INFO L175 Difference]: Start difference. First operand has 45 places, 27 transitions, 75 flow. Second operand 9 states and 1194 transitions. [2022-12-13 19:09:05,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 111 transitions, 481 flow [2022-12-13 19:09:05,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 111 transitions, 469 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-12-13 19:09:05,220 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 162 flow [2022-12-13 19:09:05,220 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=162, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2022-12-13 19:09:05,221 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places. [2022-12-13 19:09:05,221 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 162 flow [2022-12-13 19:09:05,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 122.0) internal successors, (854), 7 states have internal predecessors, (854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:05,221 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:05,221 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:05,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 19:09:05,222 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:05,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:05,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1599646408, now seen corresponding path program 2 times [2022-12-13 19:09:05,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:05,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551003517] [2022-12-13 19:09:05,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:05,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:05,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:05,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:05,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551003517] [2022-12-13 19:09:05,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551003517] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:05,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:05,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:09:05,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372835997] [2022-12-13 19:09:05,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:05,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:09:05,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:05,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:09:05,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:09:05,666 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 290 [2022-12-13 19:09:05,667 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 162 flow. Second operand has 6 states, 6 states have (on average 135.33333333333334) internal successors, (812), 6 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:05,667 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:05,667 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 290 [2022-12-13 19:09:05,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:06,187 INFO L130 PetriNetUnfolder]: 3753/5444 cut-off events. [2022-12-13 19:09:06,187 INFO L131 PetriNetUnfolder]: For 2940/3040 co-relation queries the response was YES. [2022-12-13 19:09:06,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14110 conditions, 5444 events. 3753/5444 cut-off events. For 2940/3040 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 29100 event pairs, 855 based on Foata normal form. 190/5460 useless extension candidates. Maximal degree in co-relation 14099. Up to 3952 conditions per place. [2022-12-13 19:09:06,210 INFO L137 encePairwiseOnDemand]: 284/290 looper letters, 59 selfloop transitions, 12 changer transitions 2/78 dead transitions. [2022-12-13 19:09:06,210 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 78 transitions, 410 flow [2022-12-13 19:09:06,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:09:06,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:09:06,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 863 transitions. [2022-12-13 19:09:06,213 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4959770114942529 [2022-12-13 19:09:06,213 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 863 transitions. [2022-12-13 19:09:06,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 863 transitions. [2022-12-13 19:09:06,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:06,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 863 transitions. [2022-12-13 19:09:06,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.83333333333334) internal successors, (863), 6 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:06,216 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:06,216 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:06,216 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 162 flow. Second operand 6 states and 863 transitions. [2022-12-13 19:09:06,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 78 transitions, 410 flow [2022-12-13 19:09:06,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 78 transitions, 404 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-13 19:09:06,235 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 249 flow [2022-12-13 19:09:06,235 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=249, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2022-12-13 19:09:06,235 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 4 predicate places. [2022-12-13 19:09:06,236 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 249 flow [2022-12-13 19:09:06,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.33333333333334) internal successors, (812), 6 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:06,236 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:06,236 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:06,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 19:09:06,236 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:06,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:06,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1777749694, now seen corresponding path program 1 times [2022-12-13 19:09:06,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:06,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353094195] [2022-12-13 19:09:06,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:06,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:06,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:06,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:06,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353094195] [2022-12-13 19:09:06,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353094195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:06,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:06,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:09:06,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568280109] [2022-12-13 19:09:06,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:06,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:09:06,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:06,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:09:06,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:09:06,874 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 290 [2022-12-13 19:09:06,875 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 249 flow. Second operand has 7 states, 7 states have (on average 135.28571428571428) internal successors, (947), 7 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:06,875 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:06,875 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 290 [2022-12-13 19:09:06,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:07,586 INFO L130 PetriNetUnfolder]: 4313/6287 cut-off events. [2022-12-13 19:09:07,586 INFO L131 PetriNetUnfolder]: For 5216/5306 co-relation queries the response was YES. [2022-12-13 19:09:07,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17771 conditions, 6287 events. 4313/6287 cut-off events. For 5216/5306 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 35042 event pairs, 501 based on Foata normal form. 131/6224 useless extension candidates. Maximal degree in co-relation 17758. Up to 2773 conditions per place. [2022-12-13 19:09:07,606 INFO L137 encePairwiseOnDemand]: 283/290 looper letters, 80 selfloop transitions, 23 changer transitions 1/109 dead transitions. [2022-12-13 19:09:07,606 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 109 transitions, 645 flow [2022-12-13 19:09:07,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 19:09:07,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 19:09:07,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1291 transitions. [2022-12-13 19:09:07,608 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4946360153256705 [2022-12-13 19:09:07,608 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1291 transitions. [2022-12-13 19:09:07,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1291 transitions. [2022-12-13 19:09:07,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:07,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1291 transitions. [2022-12-13 19:09:07,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 143.44444444444446) internal successors, (1291), 9 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:07,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 290.0) internal successors, (2900), 10 states have internal predecessors, (2900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:07,613 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 290.0) internal successors, (2900), 10 states have internal predecessors, (2900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:07,613 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 249 flow. Second operand 9 states and 1291 transitions. [2022-12-13 19:09:07,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 109 transitions, 645 flow [2022-12-13 19:09:07,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 109 transitions, 633 flow, removed 6 selfloop flow, removed 0 redundant places. [2022-12-13 19:09:07,633 INFO L231 Difference]: Finished difference. Result has 67 places, 62 transitions, 398 flow [2022-12-13 19:09:07,634 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=398, PETRI_PLACES=67, PETRI_TRANSITIONS=62} [2022-12-13 19:09:07,634 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 15 predicate places. [2022-12-13 19:09:07,634 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 62 transitions, 398 flow [2022-12-13 19:09:07,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 135.28571428571428) internal successors, (947), 7 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:07,634 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:07,634 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:07,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 19:09:07,635 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:07,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:07,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1271625213, now seen corresponding path program 1 times [2022-12-13 19:09:07,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:07,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722693954] [2022-12-13 19:09:07,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:07,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:07,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:07,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:07,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722693954] [2022-12-13 19:09:07,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722693954] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:07,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:07,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:09:07,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573613529] [2022-12-13 19:09:07,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:07,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:09:07,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:07,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:09:07,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:09:07,735 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 290 [2022-12-13 19:09:07,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 62 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:07,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:07,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 290 [2022-12-13 19:09:07,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:08,156 INFO L130 PetriNetUnfolder]: 3083/4630 cut-off events. [2022-12-13 19:09:08,156 INFO L131 PetriNetUnfolder]: For 6943/6985 co-relation queries the response was YES. [2022-12-13 19:09:08,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14306 conditions, 4630 events. 3083/4630 cut-off events. For 6943/6985 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 25700 event pairs, 716 based on Foata normal form. 85/4579 useless extension candidates. Maximal degree in co-relation 14289. Up to 4180 conditions per place. [2022-12-13 19:09:08,172 INFO L137 encePairwiseOnDemand]: 284/290 looper letters, 71 selfloop transitions, 5 changer transitions 0/88 dead transitions. [2022-12-13 19:09:08,172 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 88 transitions, 679 flow [2022-12-13 19:09:08,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:09:08,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:09:08,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2022-12-13 19:09:08,173 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5022988505747127 [2022-12-13 19:09:08,174 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2022-12-13 19:09:08,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2022-12-13 19:09:08,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:08,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2022-12-13 19:09:08,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 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 19:09:08,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:08,176 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:08,176 INFO L175 Difference]: Start difference. First operand has 67 places, 62 transitions, 398 flow. Second operand 3 states and 437 transitions. [2022-12-13 19:09:08,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 88 transitions, 679 flow [2022-12-13 19:09:08,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 88 transitions, 623 flow, removed 22 selfloop flow, removed 2 redundant places. [2022-12-13 19:09:08,198 INFO L231 Difference]: Finished difference. Result has 68 places, 66 transitions, 385 flow [2022-12-13 19:09:08,198 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=385, PETRI_PLACES=68, PETRI_TRANSITIONS=66} [2022-12-13 19:09:08,199 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 16 predicate places. [2022-12-13 19:09:08,199 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 66 transitions, 385 flow [2022-12-13 19:09:08,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:08,199 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:08,199 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:08,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 19:09:08,199 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:08,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:08,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1984551687, now seen corresponding path program 1 times [2022-12-13 19:09:08,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:08,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146897055] [2022-12-13 19:09:08,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:08,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:08,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:08,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:08,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146897055] [2022-12-13 19:09:08,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146897055] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:08,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:08,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:09:08,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862648344] [2022-12-13 19:09:08,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:08,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:09:08,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:08,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:09:08,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:09:08,307 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 290 [2022-12-13 19:09:08,308 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 66 transitions, 385 flow. Second operand has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:08,308 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:08,308 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 290 [2022-12-13 19:09:08,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:08,583 INFO L130 PetriNetUnfolder]: 1514/2424 cut-off events. [2022-12-13 19:09:08,583 INFO L131 PetriNetUnfolder]: For 2530/2580 co-relation queries the response was YES. [2022-12-13 19:09:08,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8141 conditions, 2424 events. 1514/2424 cut-off events. For 2530/2580 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 12728 event pairs, 260 based on Foata normal form. 164/2495 useless extension candidates. Maximal degree in co-relation 8123. Up to 1381 conditions per place. [2022-12-13 19:09:08,592 INFO L137 encePairwiseOnDemand]: 284/290 looper letters, 83 selfloop transitions, 9 changer transitions 10/112 dead transitions. [2022-12-13 19:09:08,592 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 112 transitions, 817 flow [2022-12-13 19:09:08,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:09:08,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 19:09:08,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 584 transitions. [2022-12-13 19:09:08,594 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.503448275862069 [2022-12-13 19:09:08,594 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 584 transitions. [2022-12-13 19:09:08,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 584 transitions. [2022-12-13 19:09:08,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:08,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 584 transitions. [2022-12-13 19:09:08,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:08,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 290.0) internal successors, (1450), 5 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:08,600 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 290.0) internal successors, (1450), 5 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:08,600 INFO L175 Difference]: Start difference. First operand has 68 places, 66 transitions, 385 flow. Second operand 4 states and 584 transitions. [2022-12-13 19:09:08,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 112 transitions, 817 flow [2022-12-13 19:09:08,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 112 transitions, 812 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:09:08,610 INFO L231 Difference]: Finished difference. Result has 71 places, 60 transitions, 354 flow [2022-12-13 19:09:08,610 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=354, PETRI_PLACES=71, PETRI_TRANSITIONS=60} [2022-12-13 19:09:08,611 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 19 predicate places. [2022-12-13 19:09:08,611 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 60 transitions, 354 flow [2022-12-13 19:09:08,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:08,611 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:08,612 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:08,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 19:09:08,612 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:08,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:08,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1015892442, now seen corresponding path program 1 times [2022-12-13 19:09:08,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:08,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440123411] [2022-12-13 19:09:08,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:08,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:08,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:08,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:08,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440123411] [2022-12-13 19:09:08,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440123411] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:08,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:08,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:09:08,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141103219] [2022-12-13 19:09:08,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:08,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:09:08,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:08,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:09:08,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:09:08,777 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 290 [2022-12-13 19:09:08,778 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 60 transitions, 354 flow. Second operand has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:08,778 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:08,778 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 290 [2022-12-13 19:09:08,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:09,273 INFO L130 PetriNetUnfolder]: 2345/3826 cut-off events. [2022-12-13 19:09:09,273 INFO L131 PetriNetUnfolder]: For 7124/7286 co-relation queries the response was YES. [2022-12-13 19:09:09,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13905 conditions, 3826 events. 2345/3826 cut-off events. For 7124/7286 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 22711 event pairs, 317 based on Foata normal form. 93/3821 useless extension candidates. Maximal degree in co-relation 13886. Up to 1975 conditions per place. [2022-12-13 19:09:09,293 INFO L137 encePairwiseOnDemand]: 286/290 looper letters, 100 selfloop transitions, 2 changer transitions 26/137 dead transitions. [2022-12-13 19:09:09,293 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 137 transitions, 1068 flow [2022-12-13 19:09:09,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:09:09,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:09:09,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 725 transitions. [2022-12-13 19:09:09,296 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-13 19:09:09,296 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 725 transitions. [2022-12-13 19:09:09,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 725 transitions. [2022-12-13 19:09:09,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:09,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 725 transitions. [2022-12-13 19:09:09,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:09,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 290.0) internal successors, (1740), 6 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:09,302 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 290.0) internal successors, (1740), 6 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:09,303 INFO L175 Difference]: Start difference. First operand has 71 places, 60 transitions, 354 flow. Second operand 5 states and 725 transitions. [2022-12-13 19:09:09,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 137 transitions, 1068 flow [2022-12-13 19:09:09,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 137 transitions, 995 flow, removed 17 selfloop flow, removed 6 redundant places. [2022-12-13 19:09:09,313 INFO L231 Difference]: Finished difference. Result has 69 places, 58 transitions, 318 flow [2022-12-13 19:09:09,313 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=318, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2022-12-13 19:09:09,314 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 17 predicate places. [2022-12-13 19:09:09,314 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 318 flow [2022-12-13 19:09:09,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:09,315 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:09,315 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:09,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 19:09:09,315 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:09,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:09,315 INFO L85 PathProgramCache]: Analyzing trace with hash -799689378, now seen corresponding path program 2 times [2022-12-13 19:09:09,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:09,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632098414] [2022-12-13 19:09:09,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:09,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:09,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:09,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:09,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632098414] [2022-12-13 19:09:09,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632098414] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:09,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:09,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:09:09,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616983871] [2022-12-13 19:09:09,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:09,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:09:09,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:09,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:09:09,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:09:09,425 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 290 [2022-12-13 19:09:09,426 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 318 flow. Second operand has 5 states, 5 states have (on average 135.6) internal successors, (678), 5 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:09,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:09,427 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 290 [2022-12-13 19:09:09,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:09,702 INFO L130 PetriNetUnfolder]: 1239/1998 cut-off events. [2022-12-13 19:09:09,702 INFO L131 PetriNetUnfolder]: For 2999/3093 co-relation queries the response was YES. [2022-12-13 19:09:09,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6902 conditions, 1998 events. 1239/1998 cut-off events. For 2999/3093 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 10479 event pairs, 220 based on Foata normal form. 149/2031 useless extension candidates. Maximal degree in co-relation 6884. Up to 774 conditions per place. [2022-12-13 19:09:09,709 INFO L137 encePairwiseOnDemand]: 284/290 looper letters, 78 selfloop transitions, 13 changer transitions 5/105 dead transitions. [2022-12-13 19:09:09,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 105 transitions, 740 flow [2022-12-13 19:09:09,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:09:09,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:09:09,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 729 transitions. [2022-12-13 19:09:09,710 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5027586206896552 [2022-12-13 19:09:09,710 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 729 transitions. [2022-12-13 19:09:09,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 729 transitions. [2022-12-13 19:09:09,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:09,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 729 transitions. [2022-12-13 19:09:09,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.8) internal successors, (729), 5 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:09,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 290.0) internal successors, (1740), 6 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:09,712 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 290.0) internal successors, (1740), 6 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:09,713 INFO L175 Difference]: Start difference. First operand has 69 places, 58 transitions, 318 flow. Second operand 5 states and 729 transitions. [2022-12-13 19:09:09,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 105 transitions, 740 flow [2022-12-13 19:09:09,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 105 transitions, 691 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-12-13 19:09:09,716 INFO L231 Difference]: Finished difference. Result has 62 places, 53 transitions, 307 flow [2022-12-13 19:09:09,716 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=307, PETRI_PLACES=62, PETRI_TRANSITIONS=53} [2022-12-13 19:09:09,716 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 10 predicate places. [2022-12-13 19:09:09,717 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 53 transitions, 307 flow [2022-12-13 19:09:09,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 135.6) internal successors, (678), 5 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:09,717 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:09,717 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:09,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 19:09:09,717 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:09,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:09,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1819479598, now seen corresponding path program 1 times [2022-12-13 19:09:09,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:09,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442951729] [2022-12-13 19:09:09,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:09,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:09,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:09,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:09,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:09,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442951729] [2022-12-13 19:09:09,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442951729] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:09,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:09,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:09:09,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104802983] [2022-12-13 19:09:09,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:09,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:09:09,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:09,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:09:09,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:09:10,027 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 290 [2022-12-13 19:09:10,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 53 transitions, 307 flow. Second operand has 6 states, 6 states have (on average 125.83333333333333) internal successors, (755), 6 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:10,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:10,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 290 [2022-12-13 19:09:10,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:10,590 INFO L130 PetriNetUnfolder]: 2840/4407 cut-off events. [2022-12-13 19:09:10,590 INFO L131 PetriNetUnfolder]: For 7915/7925 co-relation queries the response was YES. [2022-12-13 19:09:10,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16535 conditions, 4407 events. 2840/4407 cut-off events. For 7915/7925 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 23856 event pairs, 337 based on Foata normal form. 19/4383 useless extension candidates. Maximal degree in co-relation 16521. Up to 2330 conditions per place. [2022-12-13 19:09:10,601 INFO L137 encePairwiseOnDemand]: 282/290 looper letters, 106 selfloop transitions, 14 changer transitions 42/165 dead transitions. [2022-12-13 19:09:10,602 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 165 transitions, 1247 flow [2022-12-13 19:09:10,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 19:09:10,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 19:09:10,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 950 transitions. [2022-12-13 19:09:10,603 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46798029556650245 [2022-12-13 19:09:10,603 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 950 transitions. [2022-12-13 19:09:10,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 950 transitions. [2022-12-13 19:09:10,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:10,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 950 transitions. [2022-12-13 19:09:10,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.71428571428572) internal successors, (950), 7 states have internal predecessors, (950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:10,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:10,606 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:10,606 INFO L175 Difference]: Start difference. First operand has 62 places, 53 transitions, 307 flow. Second operand 7 states and 950 transitions. [2022-12-13 19:09:10,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 165 transitions, 1247 flow [2022-12-13 19:09:10,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 165 transitions, 1157 flow, removed 22 selfloop flow, removed 3 redundant places. [2022-12-13 19:09:10,635 INFO L231 Difference]: Finished difference. Result has 69 places, 64 transitions, 386 flow [2022-12-13 19:09:10,635 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=386, PETRI_PLACES=69, PETRI_TRANSITIONS=64} [2022-12-13 19:09:10,635 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 17 predicate places. [2022-12-13 19:09:10,635 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 64 transitions, 386 flow [2022-12-13 19:09:10,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 125.83333333333333) internal successors, (755), 6 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:10,636 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:10,636 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:10,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 19:09:10,636 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:10,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:10,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1375877468, now seen corresponding path program 2 times [2022-12-13 19:09:10,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:10,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778239937] [2022-12-13 19:09:10,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:10,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:10,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:10,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:10,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778239937] [2022-12-13 19:09:10,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778239937] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:10,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:10,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:09:10,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677401162] [2022-12-13 19:09:10,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:10,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:09:10,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:10,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:09:10,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:09:10,750 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 290 [2022-12-13 19:09:10,751 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 64 transitions, 386 flow. Second operand has 6 states, 6 states have (on average 135.33333333333334) internal successors, (812), 6 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:10,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:10,751 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 290 [2022-12-13 19:09:10,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:11,112 INFO L130 PetriNetUnfolder]: 1669/2690 cut-off events. [2022-12-13 19:09:11,112 INFO L131 PetriNetUnfolder]: For 3993/4189 co-relation queries the response was YES. [2022-12-13 19:09:11,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9824 conditions, 2690 events. 1669/2690 cut-off events. For 3993/4189 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 15662 event pairs, 192 based on Foata normal form. 148/2734 useless extension candidates. Maximal degree in co-relation 9806. Up to 1042 conditions per place. [2022-12-13 19:09:11,121 INFO L137 encePairwiseOnDemand]: 284/290 looper letters, 55 selfloop transitions, 17 changer transitions 38/116 dead transitions. [2022-12-13 19:09:11,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 116 transitions, 854 flow [2022-12-13 19:09:11,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:09:11,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:09:11,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 861 transitions. [2022-12-13 19:09:11,123 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49482758620689654 [2022-12-13 19:09:11,123 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 861 transitions. [2022-12-13 19:09:11,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 861 transitions. [2022-12-13 19:09:11,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:11,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 861 transitions. [2022-12-13 19:09:11,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.5) internal successors, (861), 6 states have internal predecessors, (861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:11,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:11,125 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:11,126 INFO L175 Difference]: Start difference. First operand has 69 places, 64 transitions, 386 flow. Second operand 6 states and 861 transitions. [2022-12-13 19:09:11,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 116 transitions, 854 flow [2022-12-13 19:09:11,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 116 transitions, 817 flow, removed 16 selfloop flow, removed 3 redundant places. [2022-12-13 19:09:11,167 INFO L231 Difference]: Finished difference. Result has 71 places, 49 transitions, 299 flow [2022-12-13 19:09:11,167 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=299, PETRI_PLACES=71, PETRI_TRANSITIONS=49} [2022-12-13 19:09:11,167 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 19 predicate places. [2022-12-13 19:09:11,167 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 49 transitions, 299 flow [2022-12-13 19:09:11,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.33333333333334) internal successors, (812), 6 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:11,168 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:11,168 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:11,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 19:09:11,168 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:11,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:11,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1893582479, now seen corresponding path program 1 times [2022-12-13 19:09:11,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:11,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713079013] [2022-12-13 19:09:11,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:11,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:11,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:11,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:11,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:09:11,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713079013] [2022-12-13 19:09:11,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713079013] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:11,585 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:11,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 19:09:11,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545332046] [2022-12-13 19:09:11,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:11,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 19:09:11,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:09:11,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 19:09:11,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 19:09:11,660 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 290 [2022-12-13 19:09:11,661 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 49 transitions, 299 flow. Second operand has 8 states, 8 states have (on average 124.25) internal successors, (994), 8 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:11,661 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:11,661 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 290 [2022-12-13 19:09:11,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:12,098 INFO L130 PetriNetUnfolder]: 1336/2169 cut-off events. [2022-12-13 19:09:12,098 INFO L131 PetriNetUnfolder]: For 4153/4153 co-relation queries the response was YES. [2022-12-13 19:09:12,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8416 conditions, 2169 events. 1336/2169 cut-off events. For 4153/4153 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 11208 event pairs, 210 based on Foata normal form. 1/2154 useless extension candidates. Maximal degree in co-relation 8399. Up to 925 conditions per place. [2022-12-13 19:09:12,104 INFO L137 encePairwiseOnDemand]: 282/290 looper letters, 48 selfloop transitions, 3 changer transitions 80/133 dead transitions. [2022-12-13 19:09:12,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 133 transitions, 1070 flow [2022-12-13 19:09:12,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 19:09:12,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 19:09:12,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1169 transitions. [2022-12-13 19:09:12,105 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4478927203065134 [2022-12-13 19:09:12,105 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1169 transitions. [2022-12-13 19:09:12,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1169 transitions. [2022-12-13 19:09:12,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:12,106 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1169 transitions. [2022-12-13 19:09:12,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 129.88888888888889) internal successors, (1169), 9 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:12,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 290.0) internal successors, (2900), 10 states have internal predecessors, (2900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:12,109 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 290.0) internal successors, (2900), 10 states have internal predecessors, (2900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:12,109 INFO L175 Difference]: Start difference. First operand has 71 places, 49 transitions, 299 flow. Second operand 9 states and 1169 transitions. [2022-12-13 19:09:12,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 133 transitions, 1070 flow [2022-12-13 19:09:12,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 133 transitions, 895 flow, removed 37 selfloop flow, removed 10 redundant places. [2022-12-13 19:09:12,127 INFO L231 Difference]: Finished difference. Result has 71 places, 43 transitions, 224 flow [2022-12-13 19:09:12,127 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=224, PETRI_PLACES=71, PETRI_TRANSITIONS=43} [2022-12-13 19:09:12,127 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 19 predicate places. [2022-12-13 19:09:12,127 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 43 transitions, 224 flow [2022-12-13 19:09:12,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 124.25) internal successors, (994), 8 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:12,128 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:12,128 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:12,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 19:09:12,128 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:12,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:12,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1719724759, now seen corresponding path program 2 times [2022-12-13 19:09:12,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:09:12,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348497581] [2022-12-13 19:09:12,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:12,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:09:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:09:12,153 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:09:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:09:12,193 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:09:12,193 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 19:09:12,194 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-13 19:09:12,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-13 19:09:12,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-13 19:09:12,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-13 19:09:12,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-13 19:09:12,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-13 19:09:12,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-13 19:09:12,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-13 19:09:12,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-13 19:09:12,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-13 19:09:12,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-13 19:09:12,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-13 19:09:12,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-13 19:09:12,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-13 19:09:12,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-13 19:09:12,196 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-13 19:09:12,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 19:09:12,196 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:12,201 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 19:09:12,201 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:09:12,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:09:12 BasicIcfg [2022-12-13 19:09:12,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:09:12,246 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:09:12,246 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:09:12,246 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:09:12,247 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:08:54" (3/4) ... [2022-12-13 19:09:12,248 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 19:09:12,249 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:09:12,249 INFO L158 Benchmark]: Toolchain (without parser) took 18303.03ms. Allocated memory was 125.8MB in the beginning and 817.9MB in the end (delta: 692.1MB). Free memory was 83.9MB in the beginning and 434.1MB in the end (delta: -350.2MB). Peak memory consumption was 344.9MB. Max. memory is 16.1GB. [2022-12-13 19:09:12,249 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:09:12,249 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.05ms. Allocated memory is still 125.8MB. Free memory was 83.4MB in the beginning and 55.8MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 19:09:12,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.66ms. Allocated memory is still 125.8MB. Free memory was 55.8MB in the beginning and 53.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:09:12,250 INFO L158 Benchmark]: Boogie Preprocessor took 28.44ms. Allocated memory is still 125.8MB. Free memory was 53.2MB in the beginning and 51.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:09:12,250 INFO L158 Benchmark]: RCFGBuilder took 555.45ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 51.2MB in the beginning and 98.7MB in the end (delta: -47.5MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2022-12-13 19:09:12,250 INFO L158 Benchmark]: TraceAbstraction took 17285.12ms. Allocated memory was 157.3MB in the beginning and 817.9MB in the end (delta: 660.6MB). Free memory was 97.9MB in the beginning and 434.1MB in the end (delta: -336.2MB). Peak memory consumption was 325.0MB. Max. memory is 16.1GB. [2022-12-13 19:09:12,250 INFO L158 Benchmark]: Witness Printer took 2.34ms. Allocated memory is still 817.9MB. Free memory is still 434.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:09:12,251 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.05ms. Allocated memory is still 125.8MB. Free memory was 83.4MB in the beginning and 55.8MB in the end (delta: 27.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.66ms. Allocated memory is still 125.8MB. Free memory was 55.8MB in the beginning and 53.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.44ms. Allocated memory is still 125.8MB. Free memory was 53.2MB in the beginning and 51.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.45ms. Allocated memory was 125.8MB in the beginning and 157.3MB in the end (delta: 31.5MB). Free memory was 51.2MB in the beginning and 98.7MB in the end (delta: -47.5MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * TraceAbstraction took 17285.12ms. Allocated memory was 157.3MB in the beginning and 817.9MB in the end (delta: 660.6MB). Free memory was 97.9MB in the beginning and 434.1MB in the end (delta: -336.2MB). Peak memory consumption was 325.0MB. Max. memory is 16.1GB. * Witness Printer took 2.34ms. Allocated memory is still 817.9MB. Free memory is still 434.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 157 PlacesBefore, 52 PlacesAfterwards, 146 TransitionsBefore, 40 TransitionsAfterwards, 3490 CoEnabledTransitionPairs, 7 FixpointIterations, 52 TrivialSequentialCompositions, 81 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 140 TotalNumberOfCompositions, 9142 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3624, independent: 3407, independent conditional: 0, independent unconditional: 3407, dependent: 217, dependent conditional: 0, dependent unconditional: 217, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1799, independent: 1754, independent conditional: 0, independent unconditional: 1754, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3624, independent: 1653, independent conditional: 0, independent unconditional: 1653, dependent: 172, dependent conditional: 0, dependent unconditional: 172, unknown: 1799, unknown conditional: 0, unknown unconditional: 1799] , Statistics on independence cache: Total cache size (in pairs): 174, Positive cache size: 153, Positive conditional cache size: 0, Positive unconditional cache size: 153, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int __unbuffered_p3_EBX = 0; [L720] 0 int a = 0; [L722] 0 int b = 0; [L723] 0 _Bool main$tmp_guard0; [L724] 0 _Bool main$tmp_guard1; [L726] 0 int x = 0; [L728] 0 int y = 0; [L730] 0 int z = 0; [L731] 0 _Bool z$flush_delayed; [L732] 0 int z$mem_tmp; [L733] 0 _Bool z$r_buff0_thd0; [L734] 0 _Bool z$r_buff0_thd1; [L735] 0 _Bool z$r_buff0_thd2; [L736] 0 _Bool z$r_buff0_thd3; [L737] 0 _Bool z$r_buff0_thd4; [L738] 0 _Bool z$r_buff1_thd0; [L739] 0 _Bool z$r_buff1_thd1; [L740] 0 _Bool z$r_buff1_thd2; [L741] 0 _Bool z$r_buff1_thd3; [L742] 0 _Bool z$r_buff1_thd4; [L743] 0 _Bool z$read_delayed; [L744] 0 int *z$read_delayed_var; [L745] 0 int z$w_buff0; [L746] 0 _Bool z$w_buff0_used; [L747] 0 int z$w_buff1; [L748] 0 _Bool z$w_buff1_used; [L749] 0 _Bool weak$$choice0; [L750] 0 _Bool weak$$choice2; [L848] 0 pthread_t t1133; [L849] FCALL, FORK 0 pthread_create(&t1133, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1133, ((void *)0), P0, ((void *)0))=-2, t1133={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L850] 0 pthread_t t1134; [L851] FCALL, FORK 0 pthread_create(&t1134, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1134, ((void *)0), P1, ((void *)0))=-1, t1133={5:0}, t1134={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L852] 0 pthread_t t1135; [L853] FCALL, FORK 0 pthread_create(&t1135, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1135, ((void *)0), P2, ((void *)0))=0, t1133={5:0}, t1134={6:0}, t1135={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L854] 0 pthread_t t1136; [L855] FCALL, FORK 0 pthread_create(&t1136, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1136, ((void *)0), P3, ((void *)0))=1, t1133={5:0}, t1134={6:0}, t1135={7:0}, t1136={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L804] 4 z$w_buff1 = z$w_buff0 [L805] 4 z$w_buff0 = 2 [L806] 4 z$w_buff1_used = z$w_buff0_used [L807] 4 z$w_buff0_used = (_Bool)1 [L808] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L808] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L809] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L810] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L811] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L812] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L813] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L814] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L817] 4 a = 1 [L820] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L823] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L754] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L757] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L769] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L772] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L784] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L787] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L790] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L791] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L792] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L793] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L794] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L797] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L799] 3 return 0; [L762] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L764] 1 return 0; [L826] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L827] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L828] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L829] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L830] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L777] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L779] 2 return 0; [L833] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L835] 4 return 0; [L857] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L859] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L859] RET 0 assume_abort_if_not(main$tmp_guard0) [L861] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L862] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L863] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L864] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L865] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1133={5:0}, t1134={6:0}, t1135={7:0}, t1136={3:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L868] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L869] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L870] 0 z$flush_delayed = weak$$choice2 [L871] 0 z$mem_tmp = z [L872] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L873] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L874] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L875] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L876] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L878] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L879] 0 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L880] 0 z = z$flush_delayed ? z$mem_tmp : z [L881] 0 z$flush_delayed = (_Bool)0 [L883] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 846]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 853]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 849]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 186 locations, 16 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: 17.1s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1091 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 915 mSDsluCounter, 477 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 421 mSDsCounter, 143 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2400 IncrementalHoareTripleChecker+Invalid, 2543 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 143 mSolverCounterUnsat, 56 mSDtfsCounter, 2400 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=398occurred in iteration=7, InterpolantAutomatonStates: 80, 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, 0.3s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 251 NumberOfCodeBlocks, 251 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 210 ConstructedInterpolants, 0 QuantifiedInterpolants, 2129 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 19:09:12,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/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_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix043.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/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 8b566ddb7b309d9ba7ea7e298fcc3be9218751e5387d333007519a12118bc5db --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 19:09:13,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:09:13,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:09:13,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:09:13,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:09:13,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:09:13,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:09:13,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:09:13,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:09:13,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:09:13,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:09:13,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:09:13,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:09:13,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:09:13,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:09:13,927 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:09:13,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:09:13,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:09:13,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:09:13,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:09:13,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:09:13,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:09:13,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:09:13,934 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:09:13,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:09:13,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:09:13,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:09:13,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:09:13,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:09:13,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:09:13,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:09:13,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:09:13,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:09:13,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:09:13,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:09:13,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:09:13,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:09:13,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:09:13,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:09:13,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:09:13,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:09:13,950 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 19:09:13,968 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:09:13,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:09:13,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:09:13,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:09:13,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:09:13,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:09:13,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:09:13,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:09:13,970 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:09:13,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:09:13,970 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:09:13,970 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:09:13,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:09:13,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:09:13,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:09:13,970 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 19:09:13,970 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 19:09:13,971 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 19:09:13,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:09:13,971 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 19:09:13,971 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 19:09:13,971 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 19:09:13,971 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:09:13,971 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:09:13,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:09:13,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:09:13,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:09:13,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:09:13,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:09:13,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:09:13,972 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 19:09:13,972 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 19:09:13,972 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:09:13,972 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:09:13,973 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:09:13,973 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 19:09:13,973 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:09:13,973 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_d6e4088d-a6cf-45a4-9052-142d574c5aae/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_d6e4088d-a6cf-45a4-9052-142d574c5aae/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 -> 8b566ddb7b309d9ba7ea7e298fcc3be9218751e5387d333007519a12118bc5db [2022-12-13 19:09:14,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:09:14,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:09:14,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:09:14,202 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:09:14,203 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:09:14,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix043.opt.i [2022-12-13 19:09:16,866 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:09:17,078 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:09:17,079 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/sv-benchmarks/c/pthread-wmm/mix043.opt.i [2022-12-13 19:09:17,096 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/data/5f593237f/a3b18cf81e3c435aab3a6846f4923bda/FLAGb5d57b33a [2022-12-13 19:09:17,107 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/data/5f593237f/a3b18cf81e3c435aab3a6846f4923bda [2022-12-13 19:09:17,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:09:17,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:09:17,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:09:17,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:09:17,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:09:17,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:09:17" (1/1) ... [2022-12-13 19:09:17,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e5471b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:09:17, skipping insertion in model container [2022-12-13 19:09:17,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:09:17" (1/1) ... [2022-12-13 19:09:17,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:09:17,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:09:17,259 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_d6e4088d-a6cf-45a4-9052-142d574c5aae/sv-benchmarks/c/pthread-wmm/mix043.opt.i[944,957] [2022-12-13 19:09:17,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,406 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:09:17,425 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:09:17,435 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_d6e4088d-a6cf-45a4-9052-142d574c5aae/sv-benchmarks/c/pthread-wmm/mix043.opt.i[944,957] [2022-12-13 19:09:17,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,449 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,450 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,451 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,452 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,453 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,455 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,456 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,457 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,458 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,458 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,459 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 19:09:17,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 19:09:17,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:09:17,491 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:09:17,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:09:17 WrapperNode [2022-12-13 19:09:17,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:09:17,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:09:17,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:09:17,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:09:17,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:09:17" (1/1) ... [2022-12-13 19:09:17,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:09:17" (1/1) ... [2022-12-13 19:09:17,527 INFO L138 Inliner]: procedures = 180, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 168 [2022-12-13 19:09:17,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:09:17,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:09:17,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:09:17,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:09:17,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:09:17" (1/1) ... [2022-12-13 19:09:17,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:09:17" (1/1) ... [2022-12-13 19:09:17,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:09:17" (1/1) ... [2022-12-13 19:09:17,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:09:17" (1/1) ... [2022-12-13 19:09:17,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:09:17" (1/1) ... [2022-12-13 19:09:17,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:09:17" (1/1) ... [2022-12-13 19:09:17,556 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:09:17" (1/1) ... [2022-12-13 19:09:17,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:09:17" (1/1) ... [2022-12-13 19:09:17,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:09:17,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:09:17,563 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:09:17,563 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:09:17,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:09:17" (1/1) ... [2022-12-13 19:09:17,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:09:17,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:09:17,587 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:09:17,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:09:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 19:09:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:09:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:09:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:09:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 19:09:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 19:09:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 19:09:17,622 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 19:09:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 19:09:17,622 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 19:09:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 19:09:17,622 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 19:09:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 19:09:17,622 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 19:09:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 19:09:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:09:17,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:09:17,623 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 19:09:17,747 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:09:17,749 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:09:18,076 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:09:18,147 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:09:18,147 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:09:18,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:09:18 BoogieIcfgContainer [2022-12-13 19:09:18,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:09:18,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:09:18,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:09:18,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:09:18,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:09:17" (1/3) ... [2022-12-13 19:09:18,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf7e1ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:09:18, skipping insertion in model container [2022-12-13 19:09:18,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:09:17" (2/3) ... [2022-12-13 19:09:18,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf7e1ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:09:18, skipping insertion in model container [2022-12-13 19:09:18,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:09:18" (3/3) ... [2022-12-13 19:09:18,155 INFO L112 eAbstractionObserver]: Analyzing ICFG mix043.opt.i [2022-12-13 19:09:18,168 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:09:18,168 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 19:09:18,169 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 19:09:18,214 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 19:09:18,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 151 transitions, 322 flow [2022-12-13 19:09:18,280 INFO L130 PetriNetUnfolder]: 2/147 cut-off events. [2022-12-13 19:09:18,280 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:09:18,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 147 events. 2/147 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 105 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-12-13 19:09:18,284 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 151 transitions, 322 flow [2022-12-13 19:09:18,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 147 transitions, 306 flow [2022-12-13 19:09:18,290 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 19:09:18,297 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 147 transitions, 306 flow [2022-12-13 19:09:18,299 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 147 transitions, 306 flow [2022-12-13 19:09:18,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 147 transitions, 306 flow [2022-12-13 19:09:18,321 INFO L130 PetriNetUnfolder]: 2/147 cut-off events. [2022-12-13 19:09:18,321 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:09:18,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 147 events. 2/147 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 105 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 100. Up to 2 conditions per place. [2022-12-13 19:09:18,323 INFO L119 LiptonReduction]: Number of co-enabled transitions 3490 [2022-12-13 19:09:26,242 INFO L134 LiptonReduction]: Checked pairs total: 9149 [2022-12-13 19:09:26,242 INFO L136 LiptonReduction]: Total number of compositions: 149 [2022-12-13 19:09:26,252 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:09:26,257 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;@116fda17, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:09:26,257 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-13 19:09:26,258 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 19:09:26,259 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:09:26,259 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:26,259 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 19:09:26,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:26,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:26,263 INFO L85 PathProgramCache]: Analyzing trace with hash 618, now seen corresponding path program 1 times [2022-12-13 19:09:26,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:09:26,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [855566679] [2022-12-13 19:09:26,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:26,272 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:26,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:09:26,274 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:09:26,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 19:09:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:26,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 19:09:26,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:26,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:26,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:09:26,373 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:09:26,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [855566679] [2022-12-13 19:09:26,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [855566679] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:26,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:26,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 19:09:26,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11811045] [2022-12-13 19:09:26,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:26,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 19:09:26,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:09:26,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 19:09:26,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:09:26,400 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 300 [2022-12-13 19:09:26,402 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 40 transitions, 92 flow. Second operand has 2 states, 2 states have (on average 138.5) internal successors, (277), 2 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:26,402 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:26,402 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 300 [2022-12-13 19:09:26,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:27,269 INFO L130 PetriNetUnfolder]: 5003/6988 cut-off events. [2022-12-13 19:09:27,269 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-13 19:09:27,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13920 conditions, 6988 events. 5003/6988 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 395. Compared 36987 event pairs, 5003 based on Foata normal form. 216/6219 useless extension candidates. Maximal degree in co-relation 13908. Up to 6829 conditions per place. [2022-12-13 19:09:27,307 INFO L137 encePairwiseOnDemand]: 291/300 looper letters, 27 selfloop transitions, 0 changer transitions 0/31 dead transitions. [2022-12-13 19:09:27,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 128 flow [2022-12-13 19:09:27,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 19:09:27,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 19:09:27,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 312 transitions. [2022-12-13 19:09:27,320 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.52 [2022-12-13 19:09:27,321 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 312 transitions. [2022-12-13 19:09:27,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 312 transitions. [2022-12-13 19:09:27,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:27,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 312 transitions. [2022-12-13 19:09:27,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 156.0) internal successors, (312), 2 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:27,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 300.0) internal successors, (900), 3 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:27,334 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 300.0) internal successors, (900), 3 states have internal predecessors, (900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:27,335 INFO L175 Difference]: Start difference. First operand has 52 places, 40 transitions, 92 flow. Second operand 2 states and 312 transitions. [2022-12-13 19:09:27,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 128 flow [2022-12-13 19:09:27,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 31 transitions, 124 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 19:09:27,341 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 70 flow [2022-12-13 19:09:27,343 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=40, 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=2, PETRI_FLOW=70, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2022-12-13 19:09:27,346 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -11 predicate places. [2022-12-13 19:09:27,346 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 70 flow [2022-12-13 19:09:27,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 138.5) internal successors, (277), 2 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:27,346 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:27,347 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:27,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:09:27,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:27,549 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:27,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:27,551 INFO L85 PathProgramCache]: Analyzing trace with hash -940814116, now seen corresponding path program 1 times [2022-12-13 19:09:27,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:09:27,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313879169] [2022-12-13 19:09:27,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:27,556 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:27,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:09:27,561 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:09:27,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 19:09:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:27,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:09:27,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:27,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:27,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:09:27,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:09:27,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313879169] [2022-12-13 19:09:27,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313879169] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:27,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:27,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 19:09:27,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328301721] [2022-12-13 19:09:27,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:27,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:09:27,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:09:27,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:09:27,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:09:27,811 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 300 [2022-12-13 19:09:27,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 70 flow. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:27,812 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:27,812 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 300 [2022-12-13 19:09:27,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:28,342 INFO L130 PetriNetUnfolder]: 4151/5992 cut-off events. [2022-12-13 19:09:28,342 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:09:28,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11781 conditions, 5992 events. 4151/5992 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 33209 event pairs, 743 based on Foata normal form. 0/5439 useless extension candidates. Maximal degree in co-relation 11778. Up to 4561 conditions per place. [2022-12-13 19:09:28,361 INFO L137 encePairwiseOnDemand]: 297/300 looper letters, 34 selfloop transitions, 2 changer transitions 4/44 dead transitions. [2022-12-13 19:09:28,361 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 44 transitions, 176 flow [2022-12-13 19:09:28,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:09:28,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:09:28,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 452 transitions. [2022-12-13 19:09:28,364 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5022222222222222 [2022-12-13 19:09:28,365 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 452 transitions. [2022-12-13 19:09:28,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 452 transitions. [2022-12-13 19:09:28,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:28,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 452 transitions. [2022-12-13 19:09:28,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:28,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:28,370 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:28,370 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 70 flow. Second operand 3 states and 452 transitions. [2022-12-13 19:09:28,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 44 transitions, 176 flow [2022-12-13 19:09:28,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 44 transitions, 176 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 19:09:28,371 INFO L231 Difference]: Finished difference. Result has 42 places, 28 transitions, 68 flow [2022-12-13 19:09:28,372 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=42, PETRI_TRANSITIONS=28} [2022-12-13 19:09:28,372 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -10 predicate places. [2022-12-13 19:09:28,372 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 28 transitions, 68 flow [2022-12-13 19:09:28,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:28,373 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:28,373 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:28,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 19:09:28,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:28,574 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:28,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:28,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1166032724, now seen corresponding path program 1 times [2022-12-13 19:09:28,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:09:28,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514782528] [2022-12-13 19:09:28,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:28,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:28,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:09:28,577 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:09:28,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 19:09:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:28,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 19:09:28,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:28,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:28,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:09:28,712 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:09:28,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514782528] [2022-12-13 19:09:28,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514782528] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:28,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:28,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:09:28,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985523380] [2022-12-13 19:09:28,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:28,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:09:28,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:09:28,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:09:28,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:09:28,726 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 300 [2022-12-13 19:09:28,726 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 28 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:28,727 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:28,727 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 300 [2022-12-13 19:09:28,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:29,246 INFO L130 PetriNetUnfolder]: 2153/3111 cut-off events. [2022-12-13 19:09:29,246 INFO L131 PetriNetUnfolder]: For 144/144 co-relation queries the response was YES. [2022-12-13 19:09:29,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6460 conditions, 3111 events. 2153/3111 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 15201 event pairs, 479 based on Foata normal form. 48/3020 useless extension candidates. Maximal degree in co-relation 6456. Up to 2887 conditions per place. [2022-12-13 19:09:29,260 INFO L137 encePairwiseOnDemand]: 294/300 looper letters, 36 selfloop transitions, 5 changer transitions 0/45 dead transitions. [2022-12-13 19:09:29,260 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 45 transitions, 192 flow [2022-12-13 19:09:29,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:09:29,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:09:29,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2022-12-13 19:09:29,262 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49 [2022-12-13 19:09:29,262 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 441 transitions. [2022-12-13 19:09:29,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 441 transitions. [2022-12-13 19:09:29,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:29,262 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 441 transitions. [2022-12-13 19:09:29,264 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:29,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:29,266 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 300.0) internal successors, (1200), 4 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:29,266 INFO L175 Difference]: Start difference. First operand has 42 places, 28 transitions, 68 flow. Second operand 3 states and 441 transitions. [2022-12-13 19:09:29,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 45 transitions, 192 flow [2022-12-13 19:09:29,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 45 transitions, 186 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:09:29,268 INFO L231 Difference]: Finished difference. Result has 41 places, 32 transitions, 97 flow [2022-12-13 19:09:29,268 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=41, PETRI_TRANSITIONS=32} [2022-12-13 19:09:29,269 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -11 predicate places. [2022-12-13 19:09:29,269 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 32 transitions, 97 flow [2022-12-13 19:09:29,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:29,269 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:29,269 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:29,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 19:09:29,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:29,471 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:29,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:29,472 INFO L85 PathProgramCache]: Analyzing trace with hash -974972550, now seen corresponding path program 1 times [2022-12-13 19:09:29,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:09:29,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032466177] [2022-12-13 19:09:29,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:29,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:29,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:09:29,476 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:09:29,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 19:09:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:29,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 19:09:29,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:29,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:29,733 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:09:29,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:09:29,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032466177] [2022-12-13 19:09:29,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032466177] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:29,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:29,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 19:09:29,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140784800] [2022-12-13 19:09:29,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:29,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:09:29,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:09:29,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:09:29,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:09:29,750 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 300 [2022-12-13 19:09:29,751 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:29,751 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:29,751 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 300 [2022-12-13 19:09:29,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:30,019 INFO L130 PetriNetUnfolder]: 1013/1591 cut-off events. [2022-12-13 19:09:30,019 INFO L131 PetriNetUnfolder]: For 238/238 co-relation queries the response was YES. [2022-12-13 19:09:30,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3905 conditions, 1591 events. 1013/1591 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7401 event pairs, 185 based on Foata normal form. 76/1604 useless extension candidates. Maximal degree in co-relation 3900. Up to 1027 conditions per place. [2022-12-13 19:09:30,028 INFO L137 encePairwiseOnDemand]: 294/300 looper letters, 47 selfloop transitions, 9 changer transitions 0/60 dead transitions. [2022-12-13 19:09:30,028 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 60 transitions, 283 flow [2022-12-13 19:09:30,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:09:30,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 19:09:30,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 589 transitions. [2022-12-13 19:09:30,030 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49083333333333334 [2022-12-13 19:09:30,031 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 589 transitions. [2022-12-13 19:09:30,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 589 transitions. [2022-12-13 19:09:30,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:30,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 589 transitions. [2022-12-13 19:09:30,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 147.25) internal successors, (589), 4 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:30,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 300.0) internal successors, (1500), 5 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:30,036 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 300.0) internal successors, (1500), 5 states have internal predecessors, (1500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:30,036 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 97 flow. Second operand 4 states and 589 transitions. [2022-12-13 19:09:30,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 60 transitions, 283 flow [2022-12-13 19:09:30,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 60 transitions, 278 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:09:30,038 INFO L231 Difference]: Finished difference. Result has 44 places, 36 transitions, 144 flow [2022-12-13 19:09:30,038 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=144, PETRI_PLACES=44, PETRI_TRANSITIONS=36} [2022-12-13 19:09:30,039 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -8 predicate places. [2022-12-13 19:09:30,039 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 36 transitions, 144 flow [2022-12-13 19:09:30,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 136.5) internal successors, (546), 4 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:30,040 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:30,040 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:30,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-13 19:09:30,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:30,241 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:30,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:30,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1668117738, now seen corresponding path program 1 times [2022-12-13 19:09:30,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:09:30,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588891896] [2022-12-13 19:09:30,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:30,242 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:30,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:09:30,243 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:09:30,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 19:09:30,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:30,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 19:09:30,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:30,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:30,369 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:09:30,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:09:30,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588891896] [2022-12-13 19:09:30,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588891896] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:30,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:30,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:09:30,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525755292] [2022-12-13 19:09:30,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:30,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:09:30,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:09:30,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:09:30,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:09:30,391 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 300 [2022-12-13 19:09:30,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 36 transitions, 144 flow. Second operand has 5 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:30,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:30,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 300 [2022-12-13 19:09:30,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:30,627 INFO L130 PetriNetUnfolder]: 573/931 cut-off events. [2022-12-13 19:09:30,627 INFO L131 PetriNetUnfolder]: For 708/708 co-relation queries the response was YES. [2022-12-13 19:09:30,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2693 conditions, 931 events. 573/931 cut-off events. For 708/708 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3932 event pairs, 124 based on Foata normal form. 44/956 useless extension candidates. Maximal degree in co-relation 2687. Up to 340 conditions per place. [2022-12-13 19:09:30,630 INFO L137 encePairwiseOnDemand]: 294/300 looper letters, 56 selfloop transitions, 13 changer transitions 0/73 dead transitions. [2022-12-13 19:09:30,630 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 73 transitions, 384 flow [2022-12-13 19:09:30,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:09:30,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:09:30,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 735 transitions. [2022-12-13 19:09:30,632 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49 [2022-12-13 19:09:30,632 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 735 transitions. [2022-12-13 19:09:30,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 735 transitions. [2022-12-13 19:09:30,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:30,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 735 transitions. [2022-12-13 19:09:30,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 147.0) internal successors, (735), 5 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:30,635 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 300.0) internal successors, (1800), 6 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:30,635 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 300.0) internal successors, (1800), 6 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:30,635 INFO L175 Difference]: Start difference. First operand has 44 places, 36 transitions, 144 flow. Second operand 5 states and 735 transitions. [2022-12-13 19:09:30,636 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 73 transitions, 384 flow [2022-12-13 19:09:30,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 73 transitions, 366 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-12-13 19:09:30,638 INFO L231 Difference]: Finished difference. Result has 47 places, 40 transitions, 194 flow [2022-12-13 19:09:30,638 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=47, PETRI_TRANSITIONS=40} [2022-12-13 19:09:30,638 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -5 predicate places. [2022-12-13 19:09:30,638 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 40 transitions, 194 flow [2022-12-13 19:09:30,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:30,639 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:30,639 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:30,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 19:09:30,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:30,840 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:30,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:30,840 INFO L85 PathProgramCache]: Analyzing trace with hash 406964393, now seen corresponding path program 1 times [2022-12-13 19:09:30,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:09:30,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87398753] [2022-12-13 19:09:30,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:30,842 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:30,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:09:30,843 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:09:30,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-13 19:09:30,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:30,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 19:09:30,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:31,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:31,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:09:31,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:09:31,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87398753] [2022-12-13 19:09:31,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87398753] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:31,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:31,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:09:31,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263627146] [2022-12-13 19:09:31,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:31,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:09:31,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:09:31,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:09:31,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:09:31,051 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 300 [2022-12-13 19:09:31,052 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 40 transitions, 194 flow. Second operand has 6 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:31,052 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:31,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 300 [2022-12-13 19:09:31,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:31,347 INFO L130 PetriNetUnfolder]: 518/821 cut-off events. [2022-12-13 19:09:31,347 INFO L131 PetriNetUnfolder]: For 819/819 co-relation queries the response was YES. [2022-12-13 19:09:31,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2493 conditions, 821 events. 518/821 cut-off events. For 819/819 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3408 event pairs, 119 based on Foata normal form. 11/824 useless extension candidates. Maximal degree in co-relation 2486. Up to 340 conditions per place. [2022-12-13 19:09:31,352 INFO L137 encePairwiseOnDemand]: 294/300 looper letters, 52 selfloop transitions, 17 changer transitions 0/73 dead transitions. [2022-12-13 19:09:31,352 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 73 transitions, 410 flow [2022-12-13 19:09:31,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:09:31,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:09:31,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 868 transitions. [2022-12-13 19:09:31,355 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4822222222222222 [2022-12-13 19:09:31,355 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 868 transitions. [2022-12-13 19:09:31,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 868 transitions. [2022-12-13 19:09:31,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:31,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 868 transitions. [2022-12-13 19:09:31,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 144.66666666666666) internal successors, (868), 6 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:31,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 300.0) internal successors, (2100), 7 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:31,361 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 300.0) internal successors, (2100), 7 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:31,361 INFO L175 Difference]: Start difference. First operand has 47 places, 40 transitions, 194 flow. Second operand 6 states and 868 transitions. [2022-12-13 19:09:31,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 73 transitions, 410 flow [2022-12-13 19:09:31,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 73 transitions, 376 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-12-13 19:09:31,367 INFO L231 Difference]: Finished difference. Result has 50 places, 40 transitions, 204 flow [2022-12-13 19:09:31,367 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=204, PETRI_PLACES=50, PETRI_TRANSITIONS=40} [2022-12-13 19:09:31,368 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2022-12-13 19:09:31,368 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 40 transitions, 204 flow [2022-12-13 19:09:31,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.16666666666666) internal successors, (817), 6 states have internal predecessors, (817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:31,368 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:31,368 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:31,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-13 19:09:31,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:31,570 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:31,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:31,571 INFO L85 PathProgramCache]: Analyzing trace with hash 168691308, now seen corresponding path program 1 times [2022-12-13 19:09:31,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:09:31,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25981325] [2022-12-13 19:09:31,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:31,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:31,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:09:31,576 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:09:31,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-13 19:09:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:31,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 19:09:31,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:32,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:32,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:09:32,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:09:32,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25981325] [2022-12-13 19:09:32,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25981325] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:32,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:32,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:09:32,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735164860] [2022-12-13 19:09:32,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:32,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 19:09:32,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:09:32,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 19:09:32,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 19:09:32,645 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 118 out of 300 [2022-12-13 19:09:32,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 40 transitions, 204 flow. Second operand has 6 states, 6 states have (on average 121.83333333333333) internal successors, (731), 6 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:32,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:32,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 118 of 300 [2022-12-13 19:09:32,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:32,969 INFO L130 PetriNetUnfolder]: 518/845 cut-off events. [2022-12-13 19:09:32,970 INFO L131 PetriNetUnfolder]: For 1334/1334 co-relation queries the response was YES. [2022-12-13 19:09:32,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2568 conditions, 845 events. 518/845 cut-off events. For 1334/1334 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3890 event pairs, 9 based on Foata normal form. 0/845 useless extension candidates. Maximal degree in co-relation 2560. Up to 670 conditions per place. [2022-12-13 19:09:32,974 INFO L137 encePairwiseOnDemand]: 295/300 looper letters, 52 selfloop transitions, 4 changer transitions 0/60 dead transitions. [2022-12-13 19:09:32,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 60 transitions, 437 flow [2022-12-13 19:09:32,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 19:09:32,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 19:09:32,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 745 transitions. [2022-12-13 19:09:32,977 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.41388888888888886 [2022-12-13 19:09:32,977 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 745 transitions. [2022-12-13 19:09:32,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 745 transitions. [2022-12-13 19:09:32,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:32,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 745 transitions. [2022-12-13 19:09:32,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 124.16666666666667) internal successors, (745), 6 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:32,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 300.0) internal successors, (2100), 7 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:32,982 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 300.0) internal successors, (2100), 7 states have internal predecessors, (2100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:32,982 INFO L175 Difference]: Start difference. First operand has 50 places, 40 transitions, 204 flow. Second operand 6 states and 745 transitions. [2022-12-13 19:09:32,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 60 transitions, 437 flow [2022-12-13 19:09:32,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 60 transitions, 362 flow, removed 12 selfloop flow, removed 4 redundant places. [2022-12-13 19:09:32,986 INFO L231 Difference]: Finished difference. Result has 50 places, 39 transitions, 160 flow [2022-12-13 19:09:32,986 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=160, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2022-12-13 19:09:32,987 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2022-12-13 19:09:32,987 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 160 flow [2022-12-13 19:09:32,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.83333333333333) internal successors, (731), 6 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:32,987 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:32,987 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:32,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-13 19:09:33,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:33,189 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:33,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:33,190 INFO L85 PathProgramCache]: Analyzing trace with hash 170422838, now seen corresponding path program 1 times [2022-12-13 19:09:33,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:09:33,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [175032987] [2022-12-13 19:09:33,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:09:33,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:33,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:09:33,195 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:09:33,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-13 19:09:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:09:33,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 19:09:33,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:33,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:33,588 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:09:33,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:09:33,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [175032987] [2022-12-13 19:09:33,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [175032987] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:33,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:33,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:09:33,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759971024] [2022-12-13 19:09:33,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:33,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:09:33,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:09:33,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:09:33,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:09:33,600 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 300 [2022-12-13 19:09:33,601 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 160 flow. Second operand has 5 states, 5 states have (on average 137.8) internal successors, (689), 5 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:33,601 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:33,601 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 300 [2022-12-13 19:09:33,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:33,840 INFO L130 PetriNetUnfolder]: 707/1142 cut-off events. [2022-12-13 19:09:33,840 INFO L131 PetriNetUnfolder]: For 863/863 co-relation queries the response was YES. [2022-12-13 19:09:33,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3229 conditions, 1142 events. 707/1142 cut-off events. For 863/863 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 5384 event pairs, 147 based on Foata normal form. 1/1139 useless extension candidates. Maximal degree in co-relation 3221. Up to 652 conditions per place. [2022-12-13 19:09:33,842 INFO L137 encePairwiseOnDemand]: 296/300 looper letters, 48 selfloop transitions, 1 changer transitions 32/84 dead transitions. [2022-12-13 19:09:33,842 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 84 transitions, 524 flow [2022-12-13 19:09:33,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:09:33,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:09:33,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 717 transitions. [2022-12-13 19:09:33,844 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.478 [2022-12-13 19:09:33,844 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 717 transitions. [2022-12-13 19:09:33,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 717 transitions. [2022-12-13 19:09:33,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:33,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 717 transitions. [2022-12-13 19:09:33,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.4) internal successors, (717), 5 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:33,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 300.0) internal successors, (1800), 6 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:33,847 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 300.0) internal successors, (1800), 6 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:33,847 INFO L175 Difference]: Start difference. First operand has 50 places, 39 transitions, 160 flow. Second operand 5 states and 717 transitions. [2022-12-13 19:09:33,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 84 transitions, 524 flow [2022-12-13 19:09:33,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 84 transitions, 512 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 19:09:33,852 INFO L231 Difference]: Finished difference. Result has 53 places, 39 transitions, 162 flow [2022-12-13 19:09:33,852 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=162, PETRI_PLACES=53, PETRI_TRANSITIONS=39} [2022-12-13 19:09:33,853 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 1 predicate places. [2022-12-13 19:09:33,853 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 39 transitions, 162 flow [2022-12-13 19:09:33,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 137.8) internal successors, (689), 5 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:33,853 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:33,853 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:33,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-13 19:09:34,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:34,055 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:34,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:34,056 INFO L85 PathProgramCache]: Analyzing trace with hash 546614212, now seen corresponding path program 2 times [2022-12-13 19:09:34,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:09:34,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503148384] [2022-12-13 19:09:34,058 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 19:09:34,059 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:34,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:09:34,062 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:09:34,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-13 19:09:34,340 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 19:09:34,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:09:34,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 19:09:34,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:34,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:34,429 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:09:34,429 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:09:34,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503148384] [2022-12-13 19:09:34,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503148384] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:34,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:34,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:09:34,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963406373] [2022-12-13 19:09:34,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:34,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:09:34,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:09:34,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:09:34,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:09:34,440 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 300 [2022-12-13 19:09:34,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 39 transitions, 162 flow. Second operand has 5 states, 5 states have (on average 137.8) internal successors, (689), 5 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:34,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:34,442 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 300 [2022-12-13 19:09:34,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:34,744 INFO L130 PetriNetUnfolder]: 972/1659 cut-off events. [2022-12-13 19:09:34,744 INFO L131 PetriNetUnfolder]: For 1501/1501 co-relation queries the response was YES. [2022-12-13 19:09:34,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4658 conditions, 1659 events. 972/1659 cut-off events. For 1501/1501 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 9147 event pairs, 159 based on Foata normal form. 1/1652 useless extension candidates. Maximal degree in co-relation 4647. Up to 798 conditions per place. [2022-12-13 19:09:34,749 INFO L137 encePairwiseOnDemand]: 296/300 looper letters, 47 selfloop transitions, 1 changer transitions 36/87 dead transitions. [2022-12-13 19:09:34,749 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 87 transitions, 541 flow [2022-12-13 19:09:34,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:09:34,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:09:34,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 720 transitions. [2022-12-13 19:09:34,751 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48 [2022-12-13 19:09:34,751 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 720 transitions. [2022-12-13 19:09:34,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 720 transitions. [2022-12-13 19:09:34,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:34,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 720 transitions. [2022-12-13 19:09:34,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.0) internal successors, (720), 5 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:34,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 300.0) internal successors, (1800), 6 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:34,753 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 300.0) internal successors, (1800), 6 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:34,753 INFO L175 Difference]: Start difference. First operand has 53 places, 39 transitions, 162 flow. Second operand 5 states and 720 transitions. [2022-12-13 19:09:34,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 87 transitions, 541 flow [2022-12-13 19:09:34,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 87 transitions, 533 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-13 19:09:34,762 INFO L231 Difference]: Finished difference. Result has 55 places, 39 transitions, 166 flow [2022-12-13 19:09:34,762 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=166, PETRI_PLACES=55, PETRI_TRANSITIONS=39} [2022-12-13 19:09:34,763 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 3 predicate places. [2022-12-13 19:09:34,763 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 39 transitions, 166 flow [2022-12-13 19:09:34,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 137.8) internal successors, (689), 5 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:34,763 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:34,763 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:34,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-13 19:09:34,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:34,964 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:34,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:34,964 INFO L85 PathProgramCache]: Analyzing trace with hash -90228642, now seen corresponding path program 3 times [2022-12-13 19:09:34,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:09:34,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652301284] [2022-12-13 19:09:34,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 19:09:34,965 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:34,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:09:34,965 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:09:34,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-13 19:09:35,054 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-13 19:09:35,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:09:35,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 19:09:35,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:35,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:35,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:09:35,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:09:35,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652301284] [2022-12-13 19:09:35,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652301284] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:35,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:35,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:09:35,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820966098] [2022-12-13 19:09:35,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:35,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 19:09:35,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:09:35,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 19:09:35,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:09:35,338 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 300 [2022-12-13 19:09:35,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 39 transitions, 166 flow. Second operand has 5 states, 5 states have (on average 137.8) internal successors, (689), 5 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:35,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:35,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 300 [2022-12-13 19:09:35,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:35,657 INFO L130 PetriNetUnfolder]: 1188/2005 cut-off events. [2022-12-13 19:09:35,657 INFO L131 PetriNetUnfolder]: For 1806/1807 co-relation queries the response was YES. [2022-12-13 19:09:35,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5864 conditions, 2005 events. 1188/2005 cut-off events. For 1806/1807 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 11101 event pairs, 159 based on Foata normal form. 1/1959 useless extension candidates. Maximal degree in co-relation 5852. Up to 1000 conditions per place. [2022-12-13 19:09:35,661 INFO L137 encePairwiseOnDemand]: 296/300 looper letters, 45 selfloop transitions, 1 changer transitions 33/82 dead transitions. [2022-12-13 19:09:35,661 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 82 transitions, 525 flow [2022-12-13 19:09:35,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:09:35,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:09:35,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 715 transitions. [2022-12-13 19:09:35,662 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4766666666666667 [2022-12-13 19:09:35,663 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 715 transitions. [2022-12-13 19:09:35,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 715 transitions. [2022-12-13 19:09:35,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:35,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 715 transitions. [2022-12-13 19:09:35,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:35,666 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 300.0) internal successors, (1800), 6 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:35,667 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 300.0) internal successors, (1800), 6 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:35,667 INFO L175 Difference]: Start difference. First operand has 55 places, 39 transitions, 166 flow. Second operand 5 states and 715 transitions. [2022-12-13 19:09:35,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 82 transitions, 525 flow [2022-12-13 19:09:35,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 82 transitions, 517 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-13 19:09:35,680 INFO L231 Difference]: Finished difference. Result has 57 places, 39 transitions, 170 flow [2022-12-13 19:09:35,681 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=170, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2022-12-13 19:09:35,681 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 5 predicate places. [2022-12-13 19:09:35,681 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 39 transitions, 170 flow [2022-12-13 19:09:35,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 137.8) internal successors, (689), 5 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:35,682 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:35,682 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:35,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-12-13 19:09:35,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:35,884 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:35,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:35,885 INFO L85 PathProgramCache]: Analyzing trace with hash -2038311726, now seen corresponding path program 4 times [2022-12-13 19:09:35,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:09:35,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [80548168] [2022-12-13 19:09:35,886 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 19:09:35,886 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:35,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:09:35,889 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:09:35,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-13 19:09:35,983 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 19:09:35,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 19:09:35,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 19:09:35,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:09:36,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:09:36,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:09:36,109 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:09:36,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [80548168] [2022-12-13 19:09:36,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [80548168] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:09:36,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:09:36,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 19:09:36,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191422837] [2022-12-13 19:09:36,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:09:36,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 19:09:36,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:09:36,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 19:09:36,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-13 19:09:36,134 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 300 [2022-12-13 19:09:36,134 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 39 transitions, 170 flow. Second operand has 7 states, 7 states have (on average 137.42857142857142) internal successors, (962), 7 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:36,134 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:09:36,135 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 300 [2022-12-13 19:09:36,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:09:36,387 INFO L130 PetriNetUnfolder]: 1099/1790 cut-off events. [2022-12-13 19:09:36,387 INFO L131 PetriNetUnfolder]: For 1942/1945 co-relation queries the response was YES. [2022-12-13 19:09:36,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5593 conditions, 1790 events. 1099/1790 cut-off events. For 1942/1945 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 9036 event pairs, 371 based on Foata normal form. 1/1703 useless extension candidates. Maximal degree in co-relation 5580. Up to 953 conditions per place. [2022-12-13 19:09:36,390 INFO L137 encePairwiseOnDemand]: 295/300 looper letters, 43 selfloop transitions, 3 changer transitions 17/66 dead transitions. [2022-12-13 19:09:36,390 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 66 transitions, 423 flow [2022-12-13 19:09:36,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 19:09:36,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 19:09:36,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 710 transitions. [2022-12-13 19:09:36,392 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47333333333333333 [2022-12-13 19:09:36,392 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 710 transitions. [2022-12-13 19:09:36,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 710 transitions. [2022-12-13 19:09:36,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:09:36,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 710 transitions. [2022-12-13 19:09:36,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:36,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 300.0) internal successors, (1800), 6 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:36,395 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 300.0) internal successors, (1800), 6 states have internal predecessors, (1800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:36,395 INFO L175 Difference]: Start difference. First operand has 57 places, 39 transitions, 170 flow. Second operand 5 states and 710 transitions. [2022-12-13 19:09:36,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 66 transitions, 423 flow [2022-12-13 19:09:36,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 66 transitions, 416 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-13 19:09:36,403 INFO L231 Difference]: Finished difference. Result has 58 places, 39 transitions, 177 flow [2022-12-13 19:09:36,403 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=300, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=177, PETRI_PLACES=58, PETRI_TRANSITIONS=39} [2022-12-13 19:09:36,403 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, 6 predicate places. [2022-12-13 19:09:36,403 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 39 transitions, 177 flow [2022-12-13 19:09:36,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 137.42857142857142) internal successors, (962), 7 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:09:36,404 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:09:36,404 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:36,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-12-13 19:09:36,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:36,605 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 19:09:36,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:09:36,606 INFO L85 PathProgramCache]: Analyzing trace with hash 551902330, now seen corresponding path program 5 times [2022-12-13 19:09:36,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:09:36,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1336578268] [2022-12-13 19:09:36,608 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 19:09:36,608 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:36,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:09:36,611 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:09:36,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-12-13 19:09:36,747 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 19:09:36,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-12-13 19:09:36,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:09:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:09:36,883 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 19:09:36,884 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 19:09:36,884 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-13 19:09:36,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-13 19:09:36,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-13 19:09:36,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-13 19:09:36,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-13 19:09:36,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-13 19:09:36,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-13 19:09:36,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-13 19:09:36,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-13 19:09:36,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-13 19:09:36,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-13 19:09:36,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-13 19:09:36,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-13 19:09:36,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-13 19:09:36,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-13 19:09:36,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-13 19:09:36,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-12-13 19:09:37,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:09:37,088 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:09:37,099 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 19:09:37,099 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:09:37,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:09:37 BasicIcfg [2022-12-13 19:09:37,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:09:37,187 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:09:37,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:09:37,187 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:09:37,188 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:09:18" (3/4) ... [2022-12-13 19:09:37,190 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 19:09:37,190 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:09:37,191 INFO L158 Benchmark]: Toolchain (without parser) took 20080.98ms. Allocated memory was 77.6MB in the beginning and 702.5MB in the end (delta: 625.0MB). Free memory was 54.7MB in the beginning and 584.0MB in the end (delta: -529.3MB). Peak memory consumption was 97.9MB. Max. memory is 16.1GB. [2022-12-13 19:09:37,191 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory is still 35.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:09:37,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.89ms. Allocated memory is still 77.6MB. Free memory was 54.5MB in the beginning and 45.0MB in the end (delta: 9.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 19:09:37,191 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.53ms. Allocated memory is still 77.6MB. Free memory was 45.0MB in the beginning and 42.3MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 19:09:37,192 INFO L158 Benchmark]: Boogie Preprocessor took 34.98ms. Allocated memory is still 77.6MB. Free memory was 42.3MB in the beginning and 39.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:09:37,192 INFO L158 Benchmark]: RCFGBuilder took 586.24ms. Allocated memory is still 77.6MB. Free memory was 39.8MB in the beginning and 45.4MB in the end (delta: -5.5MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2022-12-13 19:09:37,193 INFO L158 Benchmark]: TraceAbstraction took 19036.30ms. Allocated memory was 77.6MB in the beginning and 702.5MB in the end (delta: 625.0MB). Free memory was 44.9MB in the beginning and 584.0MB in the end (delta: -539.1MB). Peak memory consumption was 86.7MB. Max. memory is 16.1GB. [2022-12-13 19:09:37,193 INFO L158 Benchmark]: Witness Printer took 2.77ms. Allocated memory is still 702.5MB. Free memory is still 584.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:09:37,195 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 56.6MB. Free memory is still 35.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.89ms. Allocated memory is still 77.6MB. Free memory was 54.5MB in the beginning and 45.0MB in the end (delta: 9.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.53ms. Allocated memory is still 77.6MB. Free memory was 45.0MB in the beginning and 42.3MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.98ms. Allocated memory is still 77.6MB. Free memory was 42.3MB in the beginning and 39.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 586.24ms. Allocated memory is still 77.6MB. Free memory was 39.8MB in the beginning and 45.4MB in the end (delta: -5.5MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * TraceAbstraction took 19036.30ms. Allocated memory was 77.6MB in the beginning and 702.5MB in the end (delta: 625.0MB). Free memory was 44.9MB in the beginning and 584.0MB in the end (delta: -539.1MB). Peak memory consumption was 86.7MB. Max. memory is 16.1GB. * Witness Printer took 2.77ms. Allocated memory is still 702.5MB. Free memory is still 584.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.9s, 158 PlacesBefore, 52 PlacesAfterwards, 147 TransitionsBefore, 40 TransitionsAfterwards, 3490 CoEnabledTransitionPairs, 7 FixpointIterations, 61 TrivialSequentialCompositions, 80 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 149 TotalNumberOfCompositions, 9149 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3765, independent: 3548, independent conditional: 0, independent unconditional: 3548, dependent: 217, dependent conditional: 0, dependent unconditional: 217, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1825, independent: 1780, independent conditional: 0, independent unconditional: 1780, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3765, independent: 1768, independent conditional: 0, independent unconditional: 1768, dependent: 172, dependent conditional: 0, dependent unconditional: 172, unknown: 1825, unknown conditional: 0, unknown unconditional: 1825] , Statistics on independence cache: Total cache size (in pairs): 182, Positive cache size: 161, Positive conditional cache size: 0, Positive unconditional cache size: 161, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p1_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int __unbuffered_p3_EBX = 0; [L720] 0 int a = 0; [L722] 0 int b = 0; [L723] 0 _Bool main$tmp_guard0; [L724] 0 _Bool main$tmp_guard1; [L726] 0 int x = 0; [L728] 0 int y = 0; [L730] 0 int z = 0; [L731] 0 _Bool z$flush_delayed; [L732] 0 int z$mem_tmp; [L733] 0 _Bool z$r_buff0_thd0; [L734] 0 _Bool z$r_buff0_thd1; [L735] 0 _Bool z$r_buff0_thd2; [L736] 0 _Bool z$r_buff0_thd3; [L737] 0 _Bool z$r_buff0_thd4; [L738] 0 _Bool z$r_buff1_thd0; [L739] 0 _Bool z$r_buff1_thd1; [L740] 0 _Bool z$r_buff1_thd2; [L741] 0 _Bool z$r_buff1_thd3; [L742] 0 _Bool z$r_buff1_thd4; [L743] 0 _Bool z$read_delayed; [L744] 0 int *z$read_delayed_var; [L745] 0 int z$w_buff0; [L746] 0 _Bool z$w_buff0_used; [L747] 0 int z$w_buff1; [L748] 0 _Bool z$w_buff1_used; [L749] 0 _Bool weak$$choice0; [L750] 0 _Bool weak$$choice2; [L848] 0 pthread_t t1133; [L849] FCALL, FORK 0 pthread_create(&t1133, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1133, ((void *)0), P0, ((void *)0))=0, t1133={-16:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L850] 0 pthread_t t1134; [L851] FCALL, FORK 0 pthread_create(&t1134, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1134, ((void *)0), P1, ((void *)0))=1, t1133={-16:0}, t1134={-12:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L852] 0 pthread_t t1135; [L853] FCALL, FORK 0 pthread_create(&t1135, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1135, ((void *)0), P2, ((void *)0))=2, t1133={-16:0}, t1134={-12:0}, t1135={-2:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L854] 0 pthread_t t1136; [L855] FCALL, FORK 0 pthread_create(&t1136, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1136, ((void *)0), P3, ((void *)0))=3, t1133={-16:0}, t1134={-12:0}, t1135={-2:0}, t1136={-4:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L804] 4 z$w_buff1 = z$w_buff0 [L805] 4 z$w_buff0 = 2 [L806] 4 z$w_buff1_used = z$w_buff0_used [L807] 4 z$w_buff0_used = (_Bool)1 [L808] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L808] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L809] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L810] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L811] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L812] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L813] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L814] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L817] 4 a = 1 [L820] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L823] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L754] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L757] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L769] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L772] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L784] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L762] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L764] 1 return 0; [L777] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L779] 2 return 0; [L787] 3 z = 1 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L790] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L791] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L792] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L793] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L794] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L797] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L799] 3 return 0; [L826] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L827] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L828] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L829] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L830] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L833] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L835] 4 return 0; [L857] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L859] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L859] RET 0 assume_abort_if_not(main$tmp_guard0) [L861] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L862] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L863] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L864] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L865] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1133={-16:0}, t1134={-12:0}, t1135={-2:0}, t1136={-4:0}, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L868] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L869] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L870] 0 z$flush_delayed = weak$$choice2 [L871] 0 z$mem_tmp = z [L872] 0 z = !z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff1) [L873] 0 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : z$w_buff0)) [L874] 0 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff1 : z$w_buff1)) [L875] 0 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used)) [L876] 0 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L877] 0 z$r_buff0_thd0 = weak$$choice2 ? z$r_buff0_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff0_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0)) [L878] 0 z$r_buff1_thd0 = weak$$choice2 ? z$r_buff1_thd0 : (!z$w_buff0_used || !z$r_buff0_thd0 && !z$w_buff1_used || !z$r_buff0_thd0 && !z$r_buff1_thd0 ? z$r_buff1_thd0 : (z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L879] 0 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L880] 0 z = z$flush_delayed ? z$mem_tmp : z [L881] 0 z$flush_delayed = (_Bool)0 [L883] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=1, z=2, z$flush_delayed=0, z$mem_tmp=2, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=2, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 846]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 849]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 851]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 853]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 855]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 187 locations, 16 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: 18.9s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 409 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 315 mSDsluCounter, 130 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1648 IncrementalHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 44 mSDtfsCounter, 1648 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 209 GetRequests, 172 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=204occurred in iteration=6, InterpolantAutomatonStates: 49, 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: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 239 NumberOfCodeBlocks, 239 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 201 ConstructedInterpolants, 15 QuantifiedInterpolants, 1794 SizeOfPredicates, 26 NumberOfNonLiveVariables, 1750 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 19:09:37,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e4088d-a6cf-45a4-9052-142d574c5aae/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample