./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 eb5b5f76ea992c17ebcf5a0e506a820a4d574c4d0723905971e2f5f6725ae203 --- 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 15:44:09,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:44:09,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:44:09,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:44:09,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:44:09,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:44:09,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:44:09,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:44:09,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:44:09,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:44:09,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:44:09,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:44:09,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:44:09,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:44:09,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:44:09,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:44:09,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:44:09,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:44:09,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:44:09,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:44:09,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:44:09,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:44:09,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:44:09,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:44:09,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:44:09,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:44:09,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:44:09,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:44:09,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:44:09,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:44:09,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:44:09,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:44:09,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:44:09,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:44:09,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:44:09,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:44:09,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:44:09,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:44:09,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:44:09,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:44:09,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:44:09,925 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 15:44:09,938 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:44:09,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:44:09,939 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:44:09,939 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:44:09,939 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:44:09,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:44:09,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:44:09,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:44:09,940 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:44:09,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:44:09,940 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:44:09,941 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:44:09,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:44:09,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:44:09,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:44:09,941 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 15:44:09,941 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 15:44:09,941 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 15:44:09,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:44:09,942 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 15:44:09,942 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:44:09,942 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:44:09,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:44:09,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:44:09,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:44:09,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:44:09,943 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:44:09,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:44:09,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:44:09,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:44:09,944 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:44:09,944 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:44:09,944 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:44:09,944 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:44:09,944 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_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb5b5f76ea992c17ebcf5a0e506a820a4d574c4d0723905971e2f5f6725ae203 [2022-12-13 15:44:10,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:44:10,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:44:10,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:44:10,135 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:44:10,136 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:44:10,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i [2022-12-13 15:44:12,750 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:44:12,961 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:44:12,961 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i [2022-12-13 15:44:12,973 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/data/4574b6381/4c5c93b282ae40f29d5e46a38f1c7f43/FLAG0b751d86a [2022-12-13 15:44:12,985 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/data/4574b6381/4c5c93b282ae40f29d5e46a38f1c7f43 [2022-12-13 15:44:12,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:44:12,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:44:12,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:44:12,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:44:12,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:44:12,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:44:12" (1/1) ... [2022-12-13 15:44:12,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191f74b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:12, skipping insertion in model container [2022-12-13 15:44:12,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:44:12" (1/1) ... [2022-12-13 15:44:12,999 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:44:13,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:44:13,165 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_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i[956,969] [2022-12-13 15:44:13,270 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,271 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,272 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,273 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,274 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,274 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,274 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,275 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,282 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,282 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,282 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,282 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,282 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,283 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,284 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,285 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,286 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,287 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,288 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:44:13,303 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:44:13,311 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_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i[956,969] [2022-12-13 15:44:13,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,327 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,328 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,329 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,330 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,330 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,330 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,335 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,336 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,336 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,336 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,337 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,337 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,337 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,338 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,338 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,338 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,338 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,338 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,340 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,343 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,343 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,343 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,345 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:13,346 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:13,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:44:13,367 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:44:13,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:13 WrapperNode [2022-12-13 15:44:13,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:44:13,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:44:13,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:44:13,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:44:13,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:13" (1/1) ... [2022-12-13 15:44:13,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:13" (1/1) ... [2022-12-13 15:44:13,400 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 153 [2022-12-13 15:44:13,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:44:13,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:44:13,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:44:13,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:44:13,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:13" (1/1) ... [2022-12-13 15:44:13,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:13" (1/1) ... [2022-12-13 15:44:13,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:13" (1/1) ... [2022-12-13 15:44:13,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:13" (1/1) ... [2022-12-13 15:44:13,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:13" (1/1) ... [2022-12-13 15:44:13,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:13" (1/1) ... [2022-12-13 15:44:13,419 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:13" (1/1) ... [2022-12-13 15:44:13,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:13" (1/1) ... [2022-12-13 15:44:13,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:44:13,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:44:13,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:44:13,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:44:13,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:13" (1/1) ... [2022-12-13 15:44:13,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:44:13,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:44:13,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:44:13,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:44:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:44:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 15:44:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:44:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:44:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:44:13,477 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 15:44:13,477 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 15:44:13,485 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 15:44:13,485 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 15:44:13,486 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 15:44:13,486 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 15:44:13,486 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 15:44:13,486 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 15:44:13,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:44:13,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 15:44:13,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:44:13,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:44:13,488 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 15:44:13,595 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:44:13,597 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:44:13,823 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:44:13,924 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:44:13,925 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:44:13,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:44:13 BoogieIcfgContainer [2022-12-13 15:44:13,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:44:13,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:44:13,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:44:13,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:44:13,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:44:12" (1/3) ... [2022-12-13 15:44:13,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20530195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:44:13, skipping insertion in model container [2022-12-13 15:44:13,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:13" (2/3) ... [2022-12-13 15:44:13,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20530195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:44:13, skipping insertion in model container [2022-12-13 15:44:13,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:44:13" (3/3) ... [2022-12-13 15:44:13,935 INFO L112 eAbstractionObserver]: Analyzing ICFG mix036_pso.opt_tso.opt.i [2022-12-13 15:44:13,953 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:44:13,953 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 15:44:13,954 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:44:14,002 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 15:44:14,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 150 transitions, 320 flow [2022-12-13 15:44:14,067 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-12-13 15:44:14,067 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:44:14,072 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 99 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-13 15:44:14,072 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 150 transitions, 320 flow [2022-12-13 15:44:14,075 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 146 transitions, 304 flow [2022-12-13 15:44:14,078 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:44:14,085 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 146 transitions, 304 flow [2022-12-13 15:44:14,088 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 146 transitions, 304 flow [2022-12-13 15:44:14,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 146 transitions, 304 flow [2022-12-13 15:44:14,110 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-12-13 15:44:14,110 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:44:14,111 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 99 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-13 15:44:14,112 INFO L119 LiptonReduction]: Number of co-enabled transitions 3352 [2022-12-13 15:44:17,491 INFO L134 LiptonReduction]: Checked pairs total: 7778 [2022-12-13 15:44:17,491 INFO L136 LiptonReduction]: Total number of compositions: 145 [2022-12-13 15:44:17,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:44:17,510 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;@7b075c9a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:44:17,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-13 15:44:17,512 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 15:44:17,512 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:44:17,512 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:17,512 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 15:44:17,513 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 15:44:17,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:17,517 INFO L85 PathProgramCache]: Analyzing trace with hash 604, now seen corresponding path program 1 times [2022-12-13 15:44:17,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:44:17,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779235571] [2022-12-13 15:44:17,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:17,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:44:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:17,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:44:17,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:44:17,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779235571] [2022-12-13 15:44:17,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779235571] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:17,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:17,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 15:44:17,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728809460] [2022-12-13 15:44:17,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:17,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:44:17,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:44:17,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:44:17,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:44:17,623 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 295 [2022-12-13 15:44:17,624 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 88 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 15:44:17,624 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:17,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 295 [2022-12-13 15:44:17,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:18,225 INFO L130 PetriNetUnfolder]: 4373/6062 cut-off events. [2022-12-13 15:44:18,226 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-12-13 15:44:18,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12148 conditions, 6062 events. 4373/6062 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 30541 event pairs, 4373 based on Foata normal form. 0/5338 useless extension candidates. Maximal degree in co-relation 12136. Up to 5983 conditions per place. [2022-12-13 15:44:18,258 INFO L137 encePairwiseOnDemand]: 286/295 looper letters, 26 selfloop transitions, 0 changer transitions 0/29 dead transitions. [2022-12-13 15:44:18,258 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 29 transitions, 122 flow [2022-12-13 15:44:18,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:44:18,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 15:44:18,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 311 transitions. [2022-12-13 15:44:18,272 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5271186440677966 [2022-12-13 15:44:18,272 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 311 transitions. [2022-12-13 15:44:18,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 311 transitions. [2022-12-13 15:44:18,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:18,277 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 311 transitions. [2022-12-13 15:44:18,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 155.5) internal successors, (311), 2 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:18,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:18,285 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:18,287 INFO L175 Difference]: Start difference. First operand has 50 places, 38 transitions, 88 flow. Second operand 2 states and 311 transitions. [2022-12-13 15:44:18,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 29 transitions, 122 flow [2022-12-13 15:44:18,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 29 transitions, 118 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 15:44:18,293 INFO L231 Difference]: Finished difference. Result has 39 places, 29 transitions, 66 flow [2022-12-13 15:44:18,295 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=66, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2022-12-13 15:44:18,298 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -11 predicate places. [2022-12-13 15:44:18,299 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 66 flow [2022-12-13 15:44:18,299 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 15:44:18,299 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:18,299 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:44:18,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:44:18,300 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 15:44:18,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:18,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1763611801, now seen corresponding path program 1 times [2022-12-13 15:44:18,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:44:18,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993985040] [2022-12-13 15:44:18,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:18,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:44:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:18,556 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 15:44:18,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:44:18,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993985040] [2022-12-13 15:44:18,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993985040] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:18,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:18,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 15:44:18,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970152824] [2022-12-13 15:44:18,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:18,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:44:18,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:44:18,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:44:18,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:44:18,563 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 295 [2022-12-13 15:44:18,564 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 66 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 15:44:18,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:18,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 295 [2022-12-13 15:44:18,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:19,088 INFO L130 PetriNetUnfolder]: 3632/5249 cut-off events. [2022-12-13 15:44:19,088 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:44:19,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10339 conditions, 5249 events. 3632/5249 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 28533 event pairs, 668 based on Foata normal form. 0/4885 useless extension candidates. Maximal degree in co-relation 10336. Up to 3973 conditions per place. [2022-12-13 15:44:19,105 INFO L137 encePairwiseOnDemand]: 292/295 looper letters, 34 selfloop transitions, 2 changer transitions 2/41 dead transitions. [2022-12-13 15:44:19,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 41 transitions, 166 flow [2022-12-13 15:44:19,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:44:19,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:44:19,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 450 transitions. [2022-12-13 15:44:19,108 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5084745762711864 [2022-12-13 15:44:19,109 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 450 transitions. [2022-12-13 15:44:19,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 450 transitions. [2022-12-13 15:44:19,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:19,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 450 transitions. [2022-12-13 15:44:19,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:19,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:19,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:19,115 INFO L175 Difference]: Start difference. First operand has 39 places, 29 transitions, 66 flow. Second operand 3 states and 450 transitions. [2022-12-13 15:44:19,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 41 transitions, 166 flow [2022-12-13 15:44:19,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 41 transitions, 166 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 15:44:19,116 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 66 flow [2022-12-13 15:44:19,116 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2022-12-13 15:44:19,117 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -10 predicate places. [2022-12-13 15:44:19,117 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 66 flow [2022-12-13 15:44:19,117 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 15:44:19,118 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:19,118 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:44:19,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:44:19,118 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 15:44:19,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:19,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1681049591, now seen corresponding path program 1 times [2022-12-13 15:44:19,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:44:19,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85960251] [2022-12-13 15:44:19,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:19,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:44:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:19,326 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 15:44:19,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:44:19,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85960251] [2022-12-13 15:44:19,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85960251] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:19,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:19,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 15:44:19,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482847492] [2022-12-13 15:44:19,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:19,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:44:19,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:44:19,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:44:19,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:44:19,333 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 295 [2022-12-13 15:44:19,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:19,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:19,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 295 [2022-12-13 15:44:19,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:19,704 INFO L130 PetriNetUnfolder]: 2891/4184 cut-off events. [2022-12-13 15:44:19,704 INFO L131 PetriNetUnfolder]: For 153/153 co-relation queries the response was YES. [2022-12-13 15:44:19,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8463 conditions, 4184 events. 2891/4184 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 21517 event pairs, 1109 based on Foata normal form. 0/4072 useless extension candidates. Maximal degree in co-relation 8459. Up to 2503 conditions per place. [2022-12-13 15:44:19,720 INFO L137 encePairwiseOnDemand]: 292/295 looper letters, 33 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2022-12-13 15:44:19,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 38 transitions, 158 flow [2022-12-13 15:44:19,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:44:19,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:44:19,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2022-12-13 15:44:19,723 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5016949152542373 [2022-12-13 15:44:19,723 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 444 transitions. [2022-12-13 15:44:19,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 444 transitions. [2022-12-13 15:44:19,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:19,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 444 transitions. [2022-12-13 15:44:19,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:19,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:19,729 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:19,729 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 66 flow. Second operand 3 states and 444 transitions. [2022-12-13 15:44:19,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 38 transitions, 158 flow [2022-12-13 15:44:19,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 38 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:44:19,733 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 70 flow [2022-12-13 15:44:19,733 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=37, 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=3, PETRI_FLOW=70, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2022-12-13 15:44:19,734 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -10 predicate places. [2022-12-13 15:44:19,734 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 70 flow [2022-12-13 15:44:19,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:19,734 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:19,734 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:44:19,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:44:19,735 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 15:44:19,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:19,736 INFO L85 PathProgramCache]: Analyzing trace with hash -572928786, now seen corresponding path program 1 times [2022-12-13 15:44:19,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:44:19,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383948453] [2022-12-13 15:44:19,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:19,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:44:19,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:20,219 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 15:44:20,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:44:20,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383948453] [2022-12-13 15:44:20,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383948453] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:20,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:20,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:44:20,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957380500] [2022-12-13 15:44:20,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:20,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:44:20,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:44:20,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:44:20,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:44:20,486 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 295 [2022-12-13 15:44:20,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 70 flow. Second operand has 7 states, 7 states have (on average 122.71428571428571) internal successors, (859), 7 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:20,487 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:20,487 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 295 [2022-12-13 15:44:20,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:20,933 INFO L130 PetriNetUnfolder]: 2858/4146 cut-off events. [2022-12-13 15:44:20,933 INFO L131 PetriNetUnfolder]: For 180/180 co-relation queries the response was YES. [2022-12-13 15:44:20,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8645 conditions, 4146 events. 2858/4146 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 21523 event pairs, 291 based on Foata normal form. 180/4326 useless extension candidates. Maximal degree in co-relation 8640. Up to 2431 conditions per place. [2022-12-13 15:44:20,947 INFO L137 encePairwiseOnDemand]: 288/295 looper letters, 41 selfloop transitions, 5 changer transitions 12/61 dead transitions. [2022-12-13 15:44:20,947 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 61 transitions, 257 flow [2022-12-13 15:44:20,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:44:20,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 15:44:20,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 906 transitions. [2022-12-13 15:44:20,949 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4387409200968523 [2022-12-13 15:44:20,949 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 906 transitions. [2022-12-13 15:44:20,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 906 transitions. [2022-12-13 15:44:20,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:20,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 906 transitions. [2022-12-13 15:44:20,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 129.42857142857142) internal successors, (906), 7 states have internal predecessors, (906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:20,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 295.0) internal successors, (2360), 8 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:20,954 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 295.0) internal successors, (2360), 8 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:20,954 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 70 flow. Second operand 7 states and 906 transitions. [2022-12-13 15:44:20,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 61 transitions, 257 flow [2022-12-13 15:44:20,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 61 transitions, 251 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:44:20,956 INFO L231 Difference]: Finished difference. Result has 46 places, 27 transitions, 82 flow [2022-12-13 15:44:20,956 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=38, 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=82, PETRI_PLACES=46, PETRI_TRANSITIONS=27} [2022-12-13 15:44:20,957 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -4 predicate places. [2022-12-13 15:44:20,957 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 27 transitions, 82 flow [2022-12-13 15:44:20,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 122.71428571428571) internal successors, (859), 7 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:20,957 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:20,957 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:44:20,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 15:44:20,957 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 15:44:20,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:20,958 INFO L85 PathProgramCache]: Analyzing trace with hash -651724305, now seen corresponding path program 1 times [2022-12-13 15:44:20,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:44:20,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834111901] [2022-12-13 15:44:20,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:20,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:44:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:21,126 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 15:44:21,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:44:21,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834111901] [2022-12-13 15:44:21,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834111901] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:21,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:21,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:44:21,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727581829] [2022-12-13 15:44:21,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:21,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:44:21,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:44:21,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:44:21,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:44:21,139 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 295 [2022-12-13 15:44:21,140 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 27 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 135.25) internal successors, (541), 4 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:21,140 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:21,140 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 295 [2022-12-13 15:44:21,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:21,468 INFO L130 PetriNetUnfolder]: 2162/3153 cut-off events. [2022-12-13 15:44:21,468 INFO L131 PetriNetUnfolder]: For 265/265 co-relation queries the response was YES. [2022-12-13 15:44:21,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7054 conditions, 3153 events. 2162/3153 cut-off events. For 265/265 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 15419 event pairs, 438 based on Foata normal form. 180/3330 useless extension candidates. Maximal degree in co-relation 7047. Up to 2365 conditions per place. [2022-12-13 15:44:21,479 INFO L137 encePairwiseOnDemand]: 288/295 looper letters, 36 selfloop transitions, 5 changer transitions 23/67 dead transitions. [2022-12-13 15:44:21,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 67 transitions, 315 flow [2022-12-13 15:44:21,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:44:21,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:44:21,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 726 transitions. [2022-12-13 15:44:21,483 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4922033898305085 [2022-12-13 15:44:21,483 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 726 transitions. [2022-12-13 15:44:21,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 726 transitions. [2022-12-13 15:44:21,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:21,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 726 transitions. [2022-12-13 15:44:21,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.2) internal successors, (726), 5 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:21,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:21,488 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:21,488 INFO L175 Difference]: Start difference. First operand has 46 places, 27 transitions, 82 flow. Second operand 5 states and 726 transitions. [2022-12-13 15:44:21,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 67 transitions, 315 flow [2022-12-13 15:44:21,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 67 transitions, 291 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-12-13 15:44:21,492 INFO L231 Difference]: Finished difference. Result has 46 places, 31 transitions, 115 flow [2022-12-13 15:44:21,492 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=115, PETRI_PLACES=46, PETRI_TRANSITIONS=31} [2022-12-13 15:44:21,493 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -4 predicate places. [2022-12-13 15:44:21,493 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 31 transitions, 115 flow [2022-12-13 15:44:21,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 135.25) internal successors, (541), 4 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:21,494 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:21,494 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:44:21,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:44:21,494 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 15:44:21,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:21,495 INFO L85 PathProgramCache]: Analyzing trace with hash -235536747, now seen corresponding path program 1 times [2022-12-13 15:44:21,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:44:21,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792052449] [2022-12-13 15:44:21,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:21,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:44:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:21,752 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 15:44:21,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:44:21,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792052449] [2022-12-13 15:44:21,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792052449] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:21,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:21,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:44:21,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028861027] [2022-12-13 15:44:21,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:21,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:44:21,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:44:21,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:44:21,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:44:21,766 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 295 [2022-12-13 15:44:21,768 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 31 transitions, 115 flow. Second operand has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:21,768 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:21,768 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 295 [2022-12-13 15:44:21,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:22,037 INFO L130 PetriNetUnfolder]: 1194/1853 cut-off events. [2022-12-13 15:44:22,037 INFO L131 PetriNetUnfolder]: For 884/884 co-relation queries the response was YES. [2022-12-13 15:44:22,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5418 conditions, 1853 events. 1194/1853 cut-off events. For 884/884 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 8686 event pairs, 180 based on Foata normal form. 132/1982 useless extension candidates. Maximal degree in co-relation 5409. Up to 889 conditions per place. [2022-12-13 15:44:22,043 INFO L137 encePairwiseOnDemand]: 288/295 looper letters, 47 selfloop transitions, 9 changer transitions 23/82 dead transitions. [2022-12-13 15:44:22,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 82 transitions, 445 flow [2022-12-13 15:44:22,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:44:22,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:44:22,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2022-12-13 15:44:22,045 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49322033898305084 [2022-12-13 15:44:22,045 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 873 transitions. [2022-12-13 15:44:22,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 873 transitions. [2022-12-13 15:44:22,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:22,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 873 transitions. [2022-12-13 15:44:22,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.5) internal successors, (873), 6 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:22,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:22,049 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:22,049 INFO L175 Difference]: Start difference. First operand has 46 places, 31 transitions, 115 flow. Second operand 6 states and 873 transitions. [2022-12-13 15:44:22,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 82 transitions, 445 flow [2022-12-13 15:44:22,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 82 transitions, 438 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 15:44:22,054 INFO L231 Difference]: Finished difference. Result has 50 places, 35 transitions, 180 flow [2022-12-13 15:44:22,054 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=180, PETRI_PLACES=50, PETRI_TRANSITIONS=35} [2022-12-13 15:44:22,055 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 0 predicate places. [2022-12-13 15:44:22,055 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 35 transitions, 180 flow [2022-12-13 15:44:22,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 135.0) internal successors, (675), 5 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:22,056 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:22,056 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:44:22,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 15:44:22,056 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 15:44:22,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:22,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1835429826, now seen corresponding path program 1 times [2022-12-13 15:44:22,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:44:22,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024303606] [2022-12-13 15:44:22,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:22,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:44:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:22,146 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 15:44:22,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:44:22,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024303606] [2022-12-13 15:44:22,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024303606] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:22,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:22,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:44:22,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496342556] [2022-12-13 15:44:22,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:22,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:44:22,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:44:22,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:44:22,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:44:22,153 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 295 [2022-12-13 15:44:22,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 35 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 138.5) internal successors, (554), 4 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:22,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:22,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 295 [2022-12-13 15:44:22,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:22,450 INFO L130 PetriNetUnfolder]: 1610/2647 cut-off events. [2022-12-13 15:44:22,451 INFO L131 PetriNetUnfolder]: For 4649/4649 co-relation queries the response was YES. [2022-12-13 15:44:22,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9017 conditions, 2647 events. 1610/2647 cut-off events. For 4649/4649 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 14444 event pairs, 282 based on Foata normal form. 25/2672 useless extension candidates. Maximal degree in co-relation 9006. Up to 1368 conditions per place. [2022-12-13 15:44:22,460 INFO L137 encePairwiseOnDemand]: 292/295 looper letters, 81 selfloop transitions, 2 changer transitions 0/85 dead transitions. [2022-12-13 15:44:22,460 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 85 transitions, 626 flow [2022-12-13 15:44:22,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:44:22,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:44:22,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 598 transitions. [2022-12-13 15:44:22,462 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5067796610169492 [2022-12-13 15:44:22,462 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 598 transitions. [2022-12-13 15:44:22,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 598 transitions. [2022-12-13 15:44:22,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:22,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 598 transitions. [2022-12-13 15:44:22,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 149.5) internal successors, (598), 4 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:22,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:22,465 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:22,465 INFO L175 Difference]: Start difference. First operand has 50 places, 35 transitions, 180 flow. Second operand 4 states and 598 transitions. [2022-12-13 15:44:22,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 85 transitions, 626 flow [2022-12-13 15:44:22,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 85 transitions, 524 flow, removed 39 selfloop flow, removed 4 redundant places. [2022-12-13 15:44:22,481 INFO L231 Difference]: Finished difference. Result has 49 places, 36 transitions, 155 flow [2022-12-13 15:44:22,481 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=155, PETRI_PLACES=49, PETRI_TRANSITIONS=36} [2022-12-13 15:44:22,481 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -1 predicate places. [2022-12-13 15:44:22,482 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 36 transitions, 155 flow [2022-12-13 15:44:22,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 138.5) internal successors, (554), 4 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:22,482 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:22,482 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:44:22,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 15:44:22,482 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 15:44:22,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:22,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1843129082, now seen corresponding path program 2 times [2022-12-13 15:44:22,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:44:22,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428414002] [2022-12-13 15:44:22,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:22,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:44:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:22,592 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 15:44:22,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:44:22,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428414002] [2022-12-13 15:44:22,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428414002] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:22,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:22,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:44:22,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552898398] [2022-12-13 15:44:22,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:22,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:44:22,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:44:22,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:44:22,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:44:22,607 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 295 [2022-12-13 15:44:22,608 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 36 transitions, 155 flow. Second operand has 6 states, 6 states have (on average 134.83333333333334) internal successors, (809), 6 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:22,609 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:22,609 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 295 [2022-12-13 15:44:22,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:22,866 INFO L130 PetriNetUnfolder]: 958/1566 cut-off events. [2022-12-13 15:44:22,866 INFO L131 PetriNetUnfolder]: For 1421/1432 co-relation queries the response was YES. [2022-12-13 15:44:22,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4875 conditions, 1566 events. 958/1566 cut-off events. For 1421/1432 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 7542 event pairs, 157 based on Foata normal form. 101/1631 useless extension candidates. Maximal degree in co-relation 4864. Up to 477 conditions per place. [2022-12-13 15:44:22,871 INFO L137 encePairwiseOnDemand]: 288/295 looper letters, 56 selfloop transitions, 13 changer transitions 23/96 dead transitions. [2022-12-13 15:44:22,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 96 transitions, 575 flow [2022-12-13 15:44:22,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:44:22,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 15:44:22,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1018 transitions. [2022-12-13 15:44:22,873 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49297820823244554 [2022-12-13 15:44:22,873 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1018 transitions. [2022-12-13 15:44:22,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1018 transitions. [2022-12-13 15:44:22,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:22,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1018 transitions. [2022-12-13 15:44:22,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 145.42857142857142) internal successors, (1018), 7 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:22,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 295.0) internal successors, (2360), 8 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:22,877 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 295.0) internal successors, (2360), 8 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:22,877 INFO L175 Difference]: Start difference. First operand has 49 places, 36 transitions, 155 flow. Second operand 7 states and 1018 transitions. [2022-12-13 15:44:22,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 96 transitions, 575 flow [2022-12-13 15:44:22,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 96 transitions, 569 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:44:22,880 INFO L231 Difference]: Finished difference. Result has 57 places, 40 transitions, 242 flow [2022-12-13 15:44:22,880 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=48, 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=7, PETRI_FLOW=242, PETRI_PLACES=57, PETRI_TRANSITIONS=40} [2022-12-13 15:44:22,880 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 7 predicate places. [2022-12-13 15:44:22,880 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 40 transitions, 242 flow [2022-12-13 15:44:22,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.83333333333334) internal successors, (809), 6 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:22,881 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:22,881 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 15:44:22,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 15:44:22,881 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 15:44:22,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:22,881 INFO L85 PathProgramCache]: Analyzing trace with hash 414994009, now seen corresponding path program 1 times [2022-12-13 15:44:22,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:44:22,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769314330] [2022-12-13 15:44:22,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:22,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:44:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:22,988 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 15:44:22,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:44:22,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769314330] [2022-12-13 15:44:22,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769314330] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:22,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:22,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:44:22,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500505119] [2022-12-13 15:44:22,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:22,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:44:22,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:44:22,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:44:22,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:44:23,005 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 295 [2022-12-13 15:44:23,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 40 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:23,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:23,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 295 [2022-12-13 15:44:23,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:23,360 INFO L130 PetriNetUnfolder]: 2158/3382 cut-off events. [2022-12-13 15:44:23,361 INFO L131 PetriNetUnfolder]: For 5974/5974 co-relation queries the response was YES. [2022-12-13 15:44:23,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11642 conditions, 3382 events. 2158/3382 cut-off events. For 5974/5974 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 16867 event pairs, 124 based on Foata normal form. 10/3392 useless extension candidates. Maximal degree in co-relation 11628. Up to 1929 conditions per place. [2022-12-13 15:44:23,370 INFO L137 encePairwiseOnDemand]: 286/295 looper letters, 96 selfloop transitions, 15 changer transitions 0/111 dead transitions. [2022-12-13 15:44:23,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 111 transitions, 861 flow [2022-12-13 15:44:23,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:44:23,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:44:23,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 713 transitions. [2022-12-13 15:44:23,372 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48338983050847456 [2022-12-13 15:44:23,372 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 713 transitions. [2022-12-13 15:44:23,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 713 transitions. [2022-12-13 15:44:23,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:23,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 713 transitions. [2022-12-13 15:44:23,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:23,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:23,374 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:23,375 INFO L175 Difference]: Start difference. First operand has 57 places, 40 transitions, 242 flow. Second operand 5 states and 713 transitions. [2022-12-13 15:44:23,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 111 transitions, 861 flow [2022-12-13 15:44:23,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 111 transitions, 721 flow, removed 47 selfloop flow, removed 5 redundant places. [2022-12-13 15:44:23,402 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 311 flow [2022-12-13 15:44:23,402 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=311, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2022-12-13 15:44:23,402 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 7 predicate places. [2022-12-13 15:44:23,403 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 311 flow [2022-12-13 15:44:23,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:23,403 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:23,403 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 15:44:23,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 15:44:23,403 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 15:44:23,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:23,404 INFO L85 PathProgramCache]: Analyzing trace with hash 583734263, now seen corresponding path program 2 times [2022-12-13 15:44:23,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:44:23,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954364022] [2022-12-13 15:44:23,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:23,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:44:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:23,542 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 15:44:23,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:44:23,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954364022] [2022-12-13 15:44:23,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954364022] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:23,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:23,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 15:44:23,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330993873] [2022-12-13 15:44:23,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:23,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:44:23,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:44:23,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:44:23,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:44:23,562 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 295 [2022-12-13 15:44:23,564 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 311 flow. Second operand has 7 states, 7 states have (on average 134.85714285714286) internal successors, (944), 7 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:23,564 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:23,564 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 295 [2022-12-13 15:44:23,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:23,903 INFO L130 PetriNetUnfolder]: 1498/2418 cut-off events. [2022-12-13 15:44:23,903 INFO L131 PetriNetUnfolder]: For 3366/3676 co-relation queries the response was YES. [2022-12-13 15:44:23,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8387 conditions, 2418 events. 1498/2418 cut-off events. For 3366/3676 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 13084 event pairs, 218 based on Foata normal form. 232/2558 useless extension candidates. Maximal degree in co-relation 8372. Up to 870 conditions per place. [2022-12-13 15:44:23,912 INFO L137 encePairwiseOnDemand]: 288/295 looper letters, 64 selfloop transitions, 18 changer transitions 12/105 dead transitions. [2022-12-13 15:44:23,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 105 transitions, 743 flow [2022-12-13 15:44:23,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:44:23,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 15:44:23,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1139 transitions. [2022-12-13 15:44:23,915 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4826271186440678 [2022-12-13 15:44:23,915 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1139 transitions. [2022-12-13 15:44:23,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1139 transitions. [2022-12-13 15:44:23,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:23,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1139 transitions. [2022-12-13 15:44:23,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 142.375) internal successors, (1139), 8 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:23,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 295.0) internal successors, (2655), 9 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:23,919 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 295.0) internal successors, (2655), 9 states have internal predecessors, (2655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:23,919 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 311 flow. Second operand 8 states and 1139 transitions. [2022-12-13 15:44:23,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 105 transitions, 743 flow [2022-12-13 15:44:23,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 105 transitions, 694 flow, removed 11 selfloop flow, removed 2 redundant places. [2022-12-13 15:44:23,963 INFO L231 Difference]: Finished difference. Result has 65 places, 53 transitions, 342 flow [2022-12-13 15:44:23,963 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=342, PETRI_PLACES=65, PETRI_TRANSITIONS=53} [2022-12-13 15:44:23,964 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 15 predicate places. [2022-12-13 15:44:23,964 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 53 transitions, 342 flow [2022-12-13 15:44:23,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 134.85714285714286) internal successors, (944), 7 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:23,965 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:23,965 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] [2022-12-13 15:44:23,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 15:44:23,965 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 15:44:23,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:23,965 INFO L85 PathProgramCache]: Analyzing trace with hash 152966990, now seen corresponding path program 1 times [2022-12-13 15:44:23,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:44:23,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523940719] [2022-12-13 15:44:23,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:23,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:44:23,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:24,090 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 15:44:24,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:44:24,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523940719] [2022-12-13 15:44:24,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523940719] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:24,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:24,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:44:24,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749323938] [2022-12-13 15:44:24,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:24,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:44:24,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:44:24,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:44:24,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:44:24,112 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 295 [2022-12-13 15:44:24,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 53 transitions, 342 flow. Second operand has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:24,113 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:24,113 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 295 [2022-12-13 15:44:24,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:24,498 INFO L130 PetriNetUnfolder]: 2414/3755 cut-off events. [2022-12-13 15:44:24,498 INFO L131 PetriNetUnfolder]: For 9010/9010 co-relation queries the response was YES. [2022-12-13 15:44:24,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14814 conditions, 3755 events. 2414/3755 cut-off events. For 9010/9010 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 19131 event pairs, 426 based on Foata normal form. 1/3756 useless extension candidates. Maximal degree in co-relation 14797. Up to 2702 conditions per place. [2022-12-13 15:44:24,512 INFO L137 encePairwiseOnDemand]: 286/295 looper letters, 104 selfloop transitions, 25 changer transitions 3/132 dead transitions. [2022-12-13 15:44:24,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 132 transitions, 1075 flow [2022-12-13 15:44:24,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:44:24,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:44:24,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 713 transitions. [2022-12-13 15:44:24,515 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48338983050847456 [2022-12-13 15:44:24,515 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 713 transitions. [2022-12-13 15:44:24,515 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 713 transitions. [2022-12-13 15:44:24,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:24,515 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 713 transitions. [2022-12-13 15:44:24,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:24,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:24,518 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 295.0) internal successors, (1770), 6 states have internal predecessors, (1770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:24,518 INFO L175 Difference]: Start difference. First operand has 65 places, 53 transitions, 342 flow. Second operand 5 states and 713 transitions. [2022-12-13 15:44:24,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 132 transitions, 1075 flow [2022-12-13 15:44:24,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 132 transitions, 936 flow, removed 37 selfloop flow, removed 6 redundant places. [2022-12-13 15:44:24,563 INFO L231 Difference]: Finished difference. Result has 65 places, 69 transitions, 501 flow [2022-12-13 15:44:24,563 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=501, PETRI_PLACES=65, PETRI_TRANSITIONS=69} [2022-12-13 15:44:24,563 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 15 predicate places. [2022-12-13 15:44:24,563 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 69 transitions, 501 flow [2022-12-13 15:44:24,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:24,564 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:24,564 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] [2022-12-13 15:44:24,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 15:44:24,564 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 15:44:24,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:24,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1940663526, now seen corresponding path program 2 times [2022-12-13 15:44:24,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:44:24,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043570608] [2022-12-13 15:44:24,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:24,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:44:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:24,726 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 15:44:24,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:44:24,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043570608] [2022-12-13 15:44:24,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043570608] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:24,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:24,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:44:24,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276577372] [2022-12-13 15:44:24,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:24,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:44:24,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:44:24,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:44:24,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:44:24,744 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 295 [2022-12-13 15:44:24,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 69 transitions, 501 flow. Second operand has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:24,745 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:24,745 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 295 [2022-12-13 15:44:24,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:25,221 INFO L130 PetriNetUnfolder]: 2852/4436 cut-off events. [2022-12-13 15:44:25,222 INFO L131 PetriNetUnfolder]: For 11422/11422 co-relation queries the response was YES. [2022-12-13 15:44:25,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17878 conditions, 4436 events. 2852/4436 cut-off events. For 11422/11422 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 23521 event pairs, 584 based on Foata normal form. 1/4437 useless extension candidates. Maximal degree in co-relation 17860. Up to 2467 conditions per place. [2022-12-13 15:44:25,235 INFO L137 encePairwiseOnDemand]: 286/295 looper letters, 120 selfloop transitions, 21 changer transitions 0/141 dead transitions. [2022-12-13 15:44:25,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 141 transitions, 1177 flow [2022-12-13 15:44:25,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:44:25,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:44:25,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 845 transitions. [2022-12-13 15:44:25,237 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4774011299435028 [2022-12-13 15:44:25,237 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 845 transitions. [2022-12-13 15:44:25,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 845 transitions. [2022-12-13 15:44:25,238 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:25,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 845 transitions. [2022-12-13 15:44:25,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.83333333333334) internal successors, (845), 6 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 15:44:25,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:25,240 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 295.0) internal successors, (2065), 7 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:25,241 INFO L175 Difference]: Start difference. First operand has 65 places, 69 transitions, 501 flow. Second operand 6 states and 845 transitions. [2022-12-13 15:44:25,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 141 transitions, 1177 flow [2022-12-13 15:44:25,307 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 141 transitions, 1171 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-12-13 15:44:25,308 INFO L231 Difference]: Finished difference. Result has 71 places, 72 transitions, 603 flow [2022-12-13 15:44:25,308 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=603, PETRI_PLACES=71, PETRI_TRANSITIONS=72} [2022-12-13 15:44:25,308 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 21 predicate places. [2022-12-13 15:44:25,309 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 72 transitions, 603 flow [2022-12-13 15:44:25,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.0) internal successors, (660), 5 states have internal predecessors, (660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:25,309 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:25,309 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] [2022-12-13 15:44:25,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 15:44:25,309 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 15:44:25,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:25,310 INFO L85 PathProgramCache]: Analyzing trace with hash -2070500572, now seen corresponding path program 3 times [2022-12-13 15:44:25,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:44:25,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902073353] [2022-12-13 15:44:25,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:25,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:44:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:25,406 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 15:44:25,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:44:25,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902073353] [2022-12-13 15:44:25,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902073353] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:25,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:25,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:44:25,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124638508] [2022-12-13 15:44:25,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:25,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:44:25,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:44:25,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:44:25,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:44:25,415 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 295 [2022-12-13 15:44:25,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 72 transitions, 603 flow. Second operand has 4 states, 4 states have (on average 139.75) internal successors, (559), 4 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:25,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:25,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 295 [2022-12-13 15:44:25,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:25,928 INFO L130 PetriNetUnfolder]: 3102/5019 cut-off events. [2022-12-13 15:44:25,928 INFO L131 PetriNetUnfolder]: For 12531/12695 co-relation queries the response was YES. [2022-12-13 15:44:25,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19830 conditions, 5019 events. 3102/5019 cut-off events. For 12531/12695 co-relation queries the response was YES. Maximal size of possible extension queue 298. Compared 30368 event pairs, 408 based on Foata normal form. 39/4951 useless extension candidates. Maximal degree in co-relation 19809. Up to 2107 conditions per place. [2022-12-13 15:44:25,952 INFO L137 encePairwiseOnDemand]: 292/295 looper letters, 100 selfloop transitions, 6 changer transitions 0/119 dead transitions. [2022-12-13 15:44:25,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 119 transitions, 1080 flow [2022-12-13 15:44:25,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:44:25,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:44:25,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 588 transitions. [2022-12-13 15:44:25,955 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49830508474576274 [2022-12-13 15:44:25,955 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 588 transitions. [2022-12-13 15:44:25,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 588 transitions. [2022-12-13 15:44:25,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:25,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 588 transitions. [2022-12-13 15:44:25,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:25,959 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:25,960 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 295.0) internal successors, (1475), 5 states have internal predecessors, (1475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:25,960 INFO L175 Difference]: Start difference. First operand has 71 places, 72 transitions, 603 flow. Second operand 4 states and 588 transitions. [2022-12-13 15:44:25,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 119 transitions, 1080 flow [2022-12-13 15:44:26,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 119 transitions, 1061 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 15:44:26,060 INFO L231 Difference]: Finished difference. Result has 73 places, 72 transitions, 605 flow [2022-12-13 15:44:26,060 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=587, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=605, PETRI_PLACES=73, PETRI_TRANSITIONS=72} [2022-12-13 15:44:26,060 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 23 predicate places. [2022-12-13 15:44:26,061 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 72 transitions, 605 flow [2022-12-13 15:44:26,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 139.75) internal successors, (559), 4 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:26,061 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:26,061 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] [2022-12-13 15:44:26,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 15:44:26,061 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 15:44:26,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:26,061 INFO L85 PathProgramCache]: Analyzing trace with hash 700474738, now seen corresponding path program 4 times [2022-12-13 15:44:26,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:44:26,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124756928] [2022-12-13 15:44:26,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:26,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:44:26,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:26,333 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 15:44:26,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:44:26,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124756928] [2022-12-13 15:44:26,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124756928] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:26,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:26,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:44:26,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999893681] [2022-12-13 15:44:26,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:26,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:44:26,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:44:26,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:44:26,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:44:26,349 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 295 [2022-12-13 15:44:26,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 72 transitions, 605 flow. Second operand has 6 states, 6 states have (on average 136.66666666666666) internal successors, (820), 6 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:26,350 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:26,350 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 295 [2022-12-13 15:44:26,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:27,037 INFO L130 PetriNetUnfolder]: 3645/6361 cut-off events. [2022-12-13 15:44:27,037 INFO L131 PetriNetUnfolder]: For 15688/15917 co-relation queries the response was YES. [2022-12-13 15:44:27,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25038 conditions, 6361 events. 3645/6361 cut-off events. For 15688/15917 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 45612 event pairs, 591 based on Foata normal form. 16/6245 useless extension candidates. Maximal degree in co-relation 25016. Up to 1801 conditions per place. [2022-12-13 15:44:27,061 INFO L137 encePairwiseOnDemand]: 289/295 looper letters, 119 selfloop transitions, 13 changer transitions 0/153 dead transitions. [2022-12-13 15:44:27,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 153 transitions, 1382 flow [2022-12-13 15:44:27,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 15:44:27,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 15:44:27,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 990 transitions. [2022-12-13 15:44:27,063 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4794188861985472 [2022-12-13 15:44:27,063 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 990 transitions. [2022-12-13 15:44:27,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 990 transitions. [2022-12-13 15:44:27,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:27,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 990 transitions. [2022-12-13 15:44:27,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 141.42857142857142) internal successors, (990), 7 states have internal predecessors, (990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:27,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 295.0) internal successors, (2360), 8 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:27,066 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 295.0) internal successors, (2360), 8 states have internal predecessors, (2360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:27,066 INFO L175 Difference]: Start difference. First operand has 73 places, 72 transitions, 605 flow. Second operand 7 states and 990 transitions. [2022-12-13 15:44:27,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 153 transitions, 1382 flow [2022-12-13 15:44:27,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 153 transitions, 1377 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:44:27,242 INFO L231 Difference]: Finished difference. Result has 80 places, 82 transitions, 720 flow [2022-12-13 15:44:27,242 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=720, PETRI_PLACES=80, PETRI_TRANSITIONS=82} [2022-12-13 15:44:27,243 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 30 predicate places. [2022-12-13 15:44:27,243 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 82 transitions, 720 flow [2022-12-13 15:44:27,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 136.66666666666666) internal successors, (820), 6 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:27,243 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:27,243 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] [2022-12-13 15:44:27,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 15:44:27,244 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 15:44:27,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:27,244 INFO L85 PathProgramCache]: Analyzing trace with hash -632980504, now seen corresponding path program 5 times [2022-12-13 15:44:27,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:44:27,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033804866] [2022-12-13 15:44:27,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:27,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:44:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:44:27,267 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:44:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:44:27,307 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:44:27,307 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 15:44:27,308 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-13 15:44:27,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-13 15:44:27,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-13 15:44:27,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-13 15:44:27,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-13 15:44:27,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-13 15:44:27,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-13 15:44:27,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-13 15:44:27,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-13 15:44:27,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-13 15:44:27,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-13 15:44:27,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-13 15:44:27,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-13 15:44:27,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-13 15:44:27,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-13 15:44:27,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-13 15:44:27,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 15:44:27,312 INFO L445 BasicCegarLoop]: Path program histogram: [5, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 15:44:27,317 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 15:44:27,317 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:44:27,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:44:27 BasicIcfg [2022-12-13 15:44:27,361 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:44:27,361 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:44:27,361 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:44:27,362 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:44:27,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:44:13" (3/4) ... [2022-12-13 15:44:27,364 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 15:44:27,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:44:27,365 INFO L158 Benchmark]: Toolchain (without parser) took 14376.37ms. Allocated memory was 130.0MB in the beginning and 591.4MB in the end (delta: 461.4MB). Free memory was 93.1MB in the beginning and 322.4MB in the end (delta: -229.2MB). Peak memory consumption was 233.6MB. Max. memory is 16.1GB. [2022-12-13 15:44:27,365 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 130.0MB. Free memory is still 101.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:44:27,365 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.38ms. Allocated memory is still 130.0MB. Free memory was 93.1MB in the beginning and 65.7MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 15:44:27,365 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.46ms. Allocated memory is still 130.0MB. Free memory was 65.7MB in the beginning and 63.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:44:27,365 INFO L158 Benchmark]: Boogie Preprocessor took 21.39ms. Allocated memory is still 130.0MB. Free memory was 63.1MB in the beginning and 61.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:44:27,366 INFO L158 Benchmark]: RCFGBuilder took 504.02ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 61.4MB in the beginning and 100.2MB in the end (delta: -38.9MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-12-13 15:44:27,366 INFO L158 Benchmark]: TraceAbstraction took 13431.94ms. Allocated memory was 157.3MB in the beginning and 591.4MB in the end (delta: 434.1MB). Free memory was 99.5MB in the beginning and 322.4MB in the end (delta: -222.9MB). Peak memory consumption was 210.9MB. Max. memory is 16.1GB. [2022-12-13 15:44:27,366 INFO L158 Benchmark]: Witness Printer took 2.91ms. Allocated memory is still 591.4MB. Free memory is still 322.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:44:27,368 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 130.0MB. Free memory is still 101.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.38ms. Allocated memory is still 130.0MB. Free memory was 93.1MB in the beginning and 65.7MB in the end (delta: 27.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.46ms. Allocated memory is still 130.0MB. Free memory was 65.7MB in the beginning and 63.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.39ms. Allocated memory is still 130.0MB. Free memory was 63.1MB in the beginning and 61.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 504.02ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 61.4MB in the beginning and 100.2MB in the end (delta: -38.9MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * TraceAbstraction took 13431.94ms. Allocated memory was 157.3MB in the beginning and 591.4MB in the end (delta: 434.1MB). Free memory was 99.5MB in the beginning and 322.4MB in the end (delta: -222.9MB). Peak memory consumption was 210.9MB. Max. memory is 16.1GB. * Witness Printer took 2.91ms. Allocated memory is still 591.4MB. Free memory is still 322.4MB. 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: 3.4s, 157 PlacesBefore, 50 PlacesAfterwards, 146 TransitionsBefore, 38 TransitionsAfterwards, 3352 CoEnabledTransitionPairs, 7 FixpointIterations, 61 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 145 TotalNumberOfCompositions, 7778 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3917, independent: 3720, independent conditional: 0, independent unconditional: 3720, dependent: 197, dependent conditional: 0, dependent unconditional: 197, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1811, independent: 1771, independent conditional: 0, independent unconditional: 1771, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3917, independent: 1949, independent conditional: 0, independent unconditional: 1949, dependent: 157, dependent conditional: 0, dependent unconditional: 157, unknown: 1811, unknown conditional: 0, unknown unconditional: 1811] , Statistics on independence cache: Total cache size (in pairs): 178, Positive cache size: 161, Positive conditional cache size: 0, Positive unconditional cache size: 161, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, 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_p2_EAX = 0; [L718] 0 int __unbuffered_p3_EAX = 0; [L720] 0 int __unbuffered_p3_EBX = 0; [L722] 0 int a = 0; [L724] 0 int b = 0; [L725] 0 _Bool main$tmp_guard0; [L726] 0 _Bool main$tmp_guard1; [L728] 0 int x = 0; [L730] 0 int y = 0; [L732] 0 int z = 0; [L733] 0 _Bool z$flush_delayed; [L734] 0 int z$mem_tmp; [L735] 0 _Bool z$r_buff0_thd0; [L736] 0 _Bool z$r_buff0_thd1; [L737] 0 _Bool z$r_buff0_thd2; [L738] 0 _Bool z$r_buff0_thd3; [L739] 0 _Bool z$r_buff0_thd4; [L740] 0 _Bool z$r_buff1_thd0; [L741] 0 _Bool z$r_buff1_thd1; [L742] 0 _Bool z$r_buff1_thd2; [L743] 0 _Bool z$r_buff1_thd3; [L744] 0 _Bool z$r_buff1_thd4; [L745] 0 _Bool z$read_delayed; [L746] 0 int *z$read_delayed_var; [L747] 0 int z$w_buff0; [L748] 0 _Bool z$w_buff0_used; [L749] 0 int z$w_buff1; [L750] 0 _Bool z$w_buff1_used; [L751] 0 _Bool weak$$choice0; [L752] 0 _Bool weak$$choice2; [L858] 0 pthread_t t949; [L859] FCALL, FORK 0 pthread_create(&t949, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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(&t949, ((void *)0), P0, ((void *)0))=-3, t949={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] [L860] 0 pthread_t t950; [L861] FCALL, FORK 0 pthread_create(&t950, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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(&t950, ((void *)0), P1, ((void *)0))=-2, t949={5:0}, t950={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] [L862] 0 pthread_t t951; [L863] FCALL, FORK 0 pthread_create(&t951, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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(&t951, ((void *)0), P2, ((void *)0))=-1, t949={5:0}, t950={6:0}, t951={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] [L864] 0 pthread_t t952; [L865] FCALL, FORK 0 pthread_create(&t952, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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(&t952, ((void *)0), P3, ((void *)0))=0, t949={5:0}, t950={6:0}, t951={7:0}, t952={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] [L814] 4 z$w_buff1 = z$w_buff0 [L815] 4 z$w_buff0 = 1 [L816] 4 z$w_buff1_used = z$w_buff0_used [L817] 4 z$w_buff0_used = (_Bool)1 [L818] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L818] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L819] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L820] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L821] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L822] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L823] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L824] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L827] 4 a = 1 [L830] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L833] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L756] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L759] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L771] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L774] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L786] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L766] 1 return 0; [L779] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L781] 2 return 0; [L789] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L790] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L791] 3 z$flush_delayed = weak$$choice2 [L792] 3 z$mem_tmp = z [L793] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L794] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L795] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L796] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L797] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L798] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L799] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L800] 3 __unbuffered_p2_EAX = z [L801] 3 z = z$flush_delayed ? z$mem_tmp : z [L802] 3 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L836] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L837] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L838] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L839] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L840] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L807] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L809] 3 return 0; [L843] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L845] 4 return 0; [L867] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L869] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L869] RET 0 assume_abort_if_not(main$tmp_guard0) [L871] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L872] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L873] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L874] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L875] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t949={5:0}, t950={6:0}, t951={7:0}, t952={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L878] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L880] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=1, z=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=1, 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: 856]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 859]: 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: 861]: 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: 865]: 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: 863]: 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, 185 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: 13.3s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 803 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 649 mSDsluCounter, 177 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 105 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2154 IncrementalHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 72 mSDtfsCounter, 2154 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=720occurred in iteration=14, InterpolantAutomatonStates: 72, 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, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 269 NumberOfCodeBlocks, 269 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 230 ConstructedInterpolants, 0 QuantifiedInterpolants, 1501 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 15:44:27,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 eb5b5f76ea992c17ebcf5a0e506a820a4d574c4d0723905971e2f5f6725ae203 --- 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 15:44:29,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:44:29,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:44:29,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:44:29,074 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:44:29,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:44:29,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:44:29,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:44:29,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:44:29,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:44:29,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:44:29,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:44:29,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:44:29,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:44:29,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:44:29,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:44:29,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:44:29,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:44:29,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:44:29,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:44:29,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:44:29,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:44:29,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:44:29,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:44:29,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:44:29,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:44:29,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:44:29,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:44:29,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:44:29,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:44:29,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:44:29,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:44:29,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:44:29,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:44:29,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:44:29,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:44:29,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:44:29,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:44:29,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:44:29,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:44:29,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:44:29,115 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 15:44:29,137 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:44:29,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:44:29,138 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:44:29,138 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:44:29,138 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:44:29,138 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:44:29,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:44:29,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:44:29,139 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:44:29,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:44:29,139 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:44:29,139 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:44:29,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:44:29,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:44:29,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:44:29,140 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 15:44:29,140 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 15:44:29,140 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 15:44:29,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:44:29,140 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 15:44:29,140 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 15:44:29,141 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 15:44:29,141 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:44:29,141 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:44:29,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:44:29,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:44:29,141 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:44:29,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:44:29,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:44:29,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:44:29,142 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 15:44:29,142 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 15:44:29,142 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:44:29,142 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:44:29,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:44:29,142 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 15:44:29,142 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:44:29,142 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_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 -> eb5b5f76ea992c17ebcf5a0e506a820a4d574c4d0723905971e2f5f6725ae203 [2022-12-13 15:44:29,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:44:29,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:44:29,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:44:29,367 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:44:29,367 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:44:29,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i [2022-12-13 15:44:31,988 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:44:32,186 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:44:32,187 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i [2022-12-13 15:44:32,199 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/data/1b0632ee8/41b76d57b8ba411d9e823988b43e652c/FLAGe87970da3 [2022-12-13 15:44:32,213 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/data/1b0632ee8/41b76d57b8ba411d9e823988b43e652c [2022-12-13 15:44:32,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:44:32,217 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:44:32,218 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:44:32,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:44:32,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:44:32,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:44:32" (1/1) ... [2022-12-13 15:44:32,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56611a54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:32, skipping insertion in model container [2022-12-13 15:44:32,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:44:32" (1/1) ... [2022-12-13 15:44:32,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:44:32,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:44:32,412 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_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i[956,969] [2022-12-13 15:44:32,554 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,555 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,556 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,557 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,558 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,559 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,560 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,561 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,568 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,568 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,568 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,568 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,569 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,571 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,572 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,573 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,575 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,576 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,582 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,583 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,585 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:44:32,601 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:44:32,612 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_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/sv-benchmarks/c/pthread-wmm/mix036_pso.opt_tso.opt.i[956,969] [2022-12-13 15:44:32,630 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,632 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,632 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,632 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,632 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,633 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,636 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,636 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,636 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,640 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,641 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,641 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,641 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,642 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,642 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,643 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,644 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,645 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,647 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,651 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,652 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,652 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,653 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 15:44:32,654 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 15:44:32,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:44:32,690 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:44:32,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:32 WrapperNode [2022-12-13 15:44:32,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:44:32,701 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:44:32,701 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:44:32,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:44:32,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:32" (1/1) ... [2022-12-13 15:44:32,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:32" (1/1) ... [2022-12-13 15:44:32,733 INFO L138 Inliner]: procedures = 180, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 154 [2022-12-13 15:44:32,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:44:32,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:44:32,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:44:32,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:44:32,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:32" (1/1) ... [2022-12-13 15:44:32,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:32" (1/1) ... [2022-12-13 15:44:32,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:32" (1/1) ... [2022-12-13 15:44:32,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:32" (1/1) ... [2022-12-13 15:44:32,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:32" (1/1) ... [2022-12-13 15:44:32,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:32" (1/1) ... [2022-12-13 15:44:32,751 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:32" (1/1) ... [2022-12-13 15:44:32,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:32" (1/1) ... [2022-12-13 15:44:32,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:44:32,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:44:32,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:44:32,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:44:32,756 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:32" (1/1) ... [2022-12-13 15:44:32,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:44:32,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:44:32,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:44:32,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:44:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 15:44:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:44:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:44:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:44:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 15:44:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 15:44:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 15:44:32,816 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 15:44:32,816 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 15:44:32,817 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 15:44:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 15:44:32,817 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 15:44:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 15:44:32,817 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 15:44:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 15:44:32,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:44:32,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:44:32,818 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 15:44:32,944 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:44:32,947 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:44:33,266 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:44:33,359 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:44:33,360 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:44:33,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:44:33 BoogieIcfgContainer [2022-12-13 15:44:33,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:44:33,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:44:33,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:44:33,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:44:33,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:44:32" (1/3) ... [2022-12-13 15:44:33,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3496b79d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:44:33, skipping insertion in model container [2022-12-13 15:44:33,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:44:32" (2/3) ... [2022-12-13 15:44:33,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3496b79d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:44:33, skipping insertion in model container [2022-12-13 15:44:33,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:44:33" (3/3) ... [2022-12-13 15:44:33,371 INFO L112 eAbstractionObserver]: Analyzing ICFG mix036_pso.opt_tso.opt.i [2022-12-13 15:44:33,385 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:44:33,385 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 15:44:33,385 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:44:33,431 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 15:44:33,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 151 transitions, 322 flow [2022-12-13 15:44:33,495 INFO L130 PetriNetUnfolder]: 2/147 cut-off events. [2022-12-13 15:44:33,496 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:44:33,500 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 99 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-13 15:44:33,500 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 151 transitions, 322 flow [2022-12-13 15:44:33,504 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 147 transitions, 306 flow [2022-12-13 15:44:33,506 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:44:33,514 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 147 transitions, 306 flow [2022-12-13 15:44:33,516 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 147 transitions, 306 flow [2022-12-13 15:44:33,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 147 transitions, 306 flow [2022-12-13 15:44:33,539 INFO L130 PetriNetUnfolder]: 2/147 cut-off events. [2022-12-13 15:44:33,539 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:44:33,539 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 99 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-13 15:44:33,541 INFO L119 LiptonReduction]: Number of co-enabled transitions 3352 [2022-12-13 15:44:40,237 INFO L134 LiptonReduction]: Checked pairs total: 7956 [2022-12-13 15:44:40,238 INFO L136 LiptonReduction]: Total number of compositions: 143 [2022-12-13 15:44:40,249 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:44:40,253 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;@d7afa91, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:44:40,254 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-13 15:44:40,255 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 15:44:40,255 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:44:40,255 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:40,256 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 15:44:40,256 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 15:44:40,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:40,260 INFO L85 PathProgramCache]: Analyzing trace with hash 605, now seen corresponding path program 1 times [2022-12-13 15:44:40,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:44:40,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001105668] [2022-12-13 15:44:40,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:40,269 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 15:44:40,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:44:40,270 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:40,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:40,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 15:44:40,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:44:40,330 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 15:44:40,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:44:40,331 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:44:40,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1001105668] [2022-12-13 15:44:40,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1001105668] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:40,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:40,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 15:44:40,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032563046] [2022-12-13 15:44:40,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:40,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:44:40,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:44:40,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:44:40,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:44:40,355 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 294 [2022-12-13 15:44:40,356 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 90 flow. Second operand has 2 states, 2 states have (on average 139.5) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:40,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:40,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 294 [2022-12-13 15:44:40,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:41,235 INFO L130 PetriNetUnfolder]: 5003/6944 cut-off events. [2022-12-13 15:44:41,236 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-12-13 15:44:41,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13876 conditions, 6944 events. 5003/6944 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 35754 event pairs, 5003 based on Foata normal form. 216/6184 useless extension candidates. Maximal degree in co-relation 13864. Up to 6829 conditions per place. [2022-12-13 15:44:41,286 INFO L137 encePairwiseOnDemand]: 285/294 looper letters, 27 selfloop transitions, 0 changer transitions 0/30 dead transitions. [2022-12-13 15:44:41,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 30 transitions, 126 flow [2022-12-13 15:44:41,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:44:41,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 15:44:41,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 314 transitions. [2022-12-13 15:44:41,300 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5340136054421769 [2022-12-13 15:44:41,301 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 314 transitions. [2022-12-13 15:44:41,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 314 transitions. [2022-12-13 15:44:41,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:41,305 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 314 transitions. [2022-12-13 15:44:41,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 157.0) internal successors, (314), 2 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:41,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 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 15:44:41,312 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 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 15:44:41,314 INFO L175 Difference]: Start difference. First operand has 51 places, 39 transitions, 90 flow. Second operand 2 states and 314 transitions. [2022-12-13 15:44:41,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 30 transitions, 126 flow [2022-12-13 15:44:41,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 30 transitions, 122 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 15:44:41,320 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 68 flow [2022-12-13 15:44:41,322 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=68, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2022-12-13 15:44:41,325 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -11 predicate places. [2022-12-13 15:44:41,325 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 68 flow [2022-12-13 15:44:41,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 139.5) internal successors, (279), 2 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:41,326 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:41,326 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:44:41,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:41,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:41,528 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 15:44:41,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:41,530 INFO L85 PathProgramCache]: Analyzing trace with hash 2041642718, now seen corresponding path program 1 times [2022-12-13 15:44:41,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:44:41,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506123102] [2022-12-13 15:44:41,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:41,534 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 15:44:41,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:44:41,537 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:41,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:41,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:41,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 15:44:41,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:44:41,760 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 15:44:41,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:44:41,760 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:44:41,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506123102] [2022-12-13 15:44:41,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506123102] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:41,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:41,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 15:44:41,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195690818] [2022-12-13 15:44:41,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:41,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:44:41,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:44:41,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:44:41,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:44:41,766 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 294 [2022-12-13 15:44:41,767 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:41,767 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:41,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 294 [2022-12-13 15:44:41,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:42,282 INFO L130 PetriNetUnfolder]: 4151/5984 cut-off events. [2022-12-13 15:44:42,283 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:44:42,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11773 conditions, 5984 events. 4151/5984 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 330. Compared 33004 event pairs, 743 based on Foata normal form. 0/5440 useless extension candidates. Maximal degree in co-relation 11770. Up to 4561 conditions per place. [2022-12-13 15:44:42,302 INFO L137 encePairwiseOnDemand]: 291/294 looper letters, 34 selfloop transitions, 2 changer transitions 4/43 dead transitions. [2022-12-13 15:44:42,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 43 transitions, 174 flow [2022-12-13 15:44:42,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:44:42,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:44:42,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2022-12-13 15:44:42,317 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5158730158730159 [2022-12-13 15:44:42,317 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 455 transitions. [2022-12-13 15:44:42,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 455 transitions. [2022-12-13 15:44:42,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:42,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 455 transitions. [2022-12-13 15:44:42,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:42,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:42,324 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:42,324 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 68 flow. Second operand 3 states and 455 transitions. [2022-12-13 15:44:42,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 43 transitions, 174 flow [2022-12-13 15:44:42,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 43 transitions, 174 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 15:44:42,325 INFO L231 Difference]: Finished difference. Result has 41 places, 27 transitions, 66 flow [2022-12-13 15:44:42,326 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=41, PETRI_TRANSITIONS=27} [2022-12-13 15:44:42,326 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -10 predicate places. [2022-12-13 15:44:42,326 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 27 transitions, 66 flow [2022-12-13 15:44:42,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:42,327 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:42,327 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:44:42,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:42,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:42,528 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 15:44:42,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:42,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1549651687, now seen corresponding path program 1 times [2022-12-13 15:44:42,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:44:42,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168146756] [2022-12-13 15:44:42,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:42,530 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 15:44:42,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:44:42,531 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:42,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:42,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 15:44:42,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:44:42,659 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 15:44:42,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:44:42,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:44:42,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168146756] [2022-12-13 15:44:42,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168146756] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:42,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:42,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:44:42,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634190743] [2022-12-13 15:44:42,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:42,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:44:42,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:44:42,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:44:42,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:44:42,673 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 294 [2022-12-13 15:44:42,674 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 27 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:42,674 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:42,674 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 294 [2022-12-13 15:44:42,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:43,089 INFO L130 PetriNetUnfolder]: 2153/3108 cut-off events. [2022-12-13 15:44:43,090 INFO L131 PetriNetUnfolder]: For 144/144 co-relation queries the response was YES. [2022-12-13 15:44:43,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6457 conditions, 3108 events. 2153/3108 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 14693 event pairs, 479 based on Foata normal form. 48/3021 useless extension candidates. Maximal degree in co-relation 6453. Up to 2887 conditions per place. [2022-12-13 15:44:43,101 INFO L137 encePairwiseOnDemand]: 288/294 looper letters, 36 selfloop transitions, 5 changer transitions 0/44 dead transitions. [2022-12-13 15:44:43,101 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 44 transitions, 190 flow [2022-12-13 15:44:43,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:44:43,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:44:43,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 444 transitions. [2022-12-13 15:44:43,102 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5034013605442177 [2022-12-13 15:44:43,103 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 444 transitions. [2022-12-13 15:44:43,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 444 transitions. [2022-12-13 15:44:43,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:43,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 444 transitions. [2022-12-13 15:44:43,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.0) internal successors, (444), 3 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:43,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:43,105 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 294.0) internal successors, (1176), 4 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:43,106 INFO L175 Difference]: Start difference. First operand has 41 places, 27 transitions, 66 flow. Second operand 3 states and 444 transitions. [2022-12-13 15:44:43,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 44 transitions, 190 flow [2022-12-13 15:44:43,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 44 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:44:43,107 INFO L231 Difference]: Finished difference. Result has 40 places, 31 transitions, 95 flow [2022-12-13 15:44:43,107 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=95, PETRI_PLACES=40, PETRI_TRANSITIONS=31} [2022-12-13 15:44:43,108 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -11 predicate places. [2022-12-13 15:44:43,108 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 31 transitions, 95 flow [2022-12-13 15:44:43,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:43,108 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:43,108 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:44:43,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:43,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:43,309 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 15:44:43,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:43,310 INFO L85 PathProgramCache]: Analyzing trace with hash 33910773, now seen corresponding path program 1 times [2022-12-13 15:44:43,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:44:43,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909607456] [2022-12-13 15:44:43,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:43,311 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 15:44:43,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:44:43,312 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:43,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:43,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:44:43,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:44:43,506 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 15:44:43,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:44:43,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:44:43,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909607456] [2022-12-13 15:44:43,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1909607456] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:43,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:43,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:44:43,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374147113] [2022-12-13 15:44:43,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:43,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:44:43,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:44:43,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:44:43,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:44:43,526 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 294 [2022-12-13 15:44:43,527 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 31 transitions, 95 flow. Second operand has 4 states, 4 states have (on average 137.5) internal successors, (550), 4 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:43,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:43,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 294 [2022-12-13 15:44:43,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:43,765 INFO L130 PetriNetUnfolder]: 1013/1588 cut-off events. [2022-12-13 15:44:43,765 INFO L131 PetriNetUnfolder]: For 234/234 co-relation queries the response was YES. [2022-12-13 15:44:43,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3902 conditions, 1588 events. 1013/1588 cut-off events. For 234/234 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 7099 event pairs, 185 based on Foata normal form. 76/1605 useless extension candidates. Maximal degree in co-relation 3897. Up to 1027 conditions per place. [2022-12-13 15:44:43,771 INFO L137 encePairwiseOnDemand]: 288/294 looper letters, 47 selfloop transitions, 9 changer transitions 0/59 dead transitions. [2022-12-13 15:44:43,772 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 59 transitions, 281 flow [2022-12-13 15:44:43,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:44:43,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:44:43,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 593 transitions. [2022-12-13 15:44:43,773 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5042517006802721 [2022-12-13 15:44:43,773 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 593 transitions. [2022-12-13 15:44:43,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 593 transitions. [2022-12-13 15:44:43,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:43,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 593 transitions. [2022-12-13 15:44:43,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 148.25) internal successors, (593), 4 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:43,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:43,777 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 294.0) internal successors, (1470), 5 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:43,777 INFO L175 Difference]: Start difference. First operand has 40 places, 31 transitions, 95 flow. Second operand 4 states and 593 transitions. [2022-12-13 15:44:43,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 59 transitions, 281 flow [2022-12-13 15:44:43,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 59 transitions, 276 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:44:43,778 INFO L231 Difference]: Finished difference. Result has 43 places, 35 transitions, 142 flow [2022-12-13 15:44:43,778 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=43, PETRI_TRANSITIONS=35} [2022-12-13 15:44:43,779 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -8 predicate places. [2022-12-13 15:44:43,779 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 35 transitions, 142 flow [2022-12-13 15:44:43,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.5) internal successors, (550), 4 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:43,779 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:43,779 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 15:44:43,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:43,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:43,981 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 15:44:43,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:43,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1824562093, now seen corresponding path program 1 times [2022-12-13 15:44:43,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:44:43,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [455691830] [2022-12-13 15:44:43,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:43,983 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 15:44:43,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:44:43,985 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:43,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:44,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 15:44:44,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:44:44,229 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 15:44:44,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:44:44,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:44:44,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [455691830] [2022-12-13 15:44:44,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [455691830] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:44,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:44,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:44:44,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361161242] [2022-12-13 15:44:44,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:44,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:44:44,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:44:44,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:44:44,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:44:44,244 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 294 [2022-12-13 15:44:44,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 35 transitions, 142 flow. Second operand has 5 states, 5 states have (on average 137.2) internal successors, (686), 5 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:44,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:44,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 294 [2022-12-13 15:44:44,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:44,520 INFO L130 PetriNetUnfolder]: 573/928 cut-off events. [2022-12-13 15:44:44,521 INFO L131 PetriNetUnfolder]: For 696/696 co-relation queries the response was YES. [2022-12-13 15:44:44,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2690 conditions, 928 events. 573/928 cut-off events. For 696/696 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3748 event pairs, 124 based on Foata normal form. 44/957 useless extension candidates. Maximal degree in co-relation 2684. Up to 340 conditions per place. [2022-12-13 15:44:44,525 INFO L137 encePairwiseOnDemand]: 288/294 looper letters, 56 selfloop transitions, 13 changer transitions 0/72 dead transitions. [2022-12-13 15:44:44,525 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 72 transitions, 382 flow [2022-12-13 15:44:44,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:44:44,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:44:44,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 740 transitions. [2022-12-13 15:44:44,527 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5034013605442177 [2022-12-13 15:44:44,527 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 740 transitions. [2022-12-13 15:44:44,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 740 transitions. [2022-12-13 15:44:44,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:44,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 740 transitions. [2022-12-13 15:44:44,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 148.0) internal successors, (740), 5 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:44,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 294.0) internal successors, (1764), 6 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:44,532 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 294.0) internal successors, (1764), 6 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:44,532 INFO L175 Difference]: Start difference. First operand has 43 places, 35 transitions, 142 flow. Second operand 5 states and 740 transitions. [2022-12-13 15:44:44,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 72 transitions, 382 flow [2022-12-13 15:44:44,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 72 transitions, 364 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-12-13 15:44:44,534 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 192 flow [2022-12-13 15:44:44,534 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=192, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2022-12-13 15:44:44,535 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -5 predicate places. [2022-12-13 15:44:44,535 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 192 flow [2022-12-13 15:44:44,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 137.2) internal successors, (686), 5 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:44,535 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:44,535 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] [2022-12-13 15:44:44,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:44,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:44,736 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 15:44:44,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:44,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1538845531, now seen corresponding path program 1 times [2022-12-13 15:44:44,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:44:44,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338227542] [2022-12-13 15:44:44,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:44,737 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 15:44:44,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:44:44,738 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:44,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:44,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 15:44:44,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:44:44,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:44:44,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:44:44,863 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:44:44,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338227542] [2022-12-13 15:44:44,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338227542] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:44,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:44,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:44:44,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333710318] [2022-12-13 15:44:44,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:44,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:44:44,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:44:44,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:44:44,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:44:44,877 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 294 [2022-12-13 15:44:44,878 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 192 flow. Second operand has 6 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:44,878 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:44,878 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 294 [2022-12-13 15:44:44,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:45,178 INFO L130 PetriNetUnfolder]: 518/818 cut-off events. [2022-12-13 15:44:45,178 INFO L131 PetriNetUnfolder]: For 807/807 co-relation queries the response was YES. [2022-12-13 15:44:45,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2490 conditions, 818 events. 518/818 cut-off events. For 807/807 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3286 event pairs, 119 based on Foata normal form. 11/825 useless extension candidates. Maximal degree in co-relation 2483. Up to 340 conditions per place. [2022-12-13 15:44:45,181 INFO L137 encePairwiseOnDemand]: 288/294 looper letters, 52 selfloop transitions, 17 changer transitions 0/72 dead transitions. [2022-12-13 15:44:45,181 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 72 transitions, 408 flow [2022-12-13 15:44:45,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:44:45,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:44:45,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 874 transitions. [2022-12-13 15:44:45,183 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4954648526077097 [2022-12-13 15:44:45,183 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 874 transitions. [2022-12-13 15:44:45,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 874 transitions. [2022-12-13 15:44:45,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:45,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 874 transitions. [2022-12-13 15:44:45,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 145.66666666666666) internal successors, (874), 6 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:45,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:45,187 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:45,187 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 192 flow. Second operand 6 states and 874 transitions. [2022-12-13 15:44:45,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 72 transitions, 408 flow [2022-12-13 15:44:45,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 72 transitions, 374 flow, removed 8 selfloop flow, removed 3 redundant places. [2022-12-13 15:44:45,192 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 202 flow [2022-12-13 15:44:45,192 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=202, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2022-12-13 15:44:45,192 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, -2 predicate places. [2022-12-13 15:44:45,192 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 202 flow [2022-12-13 15:44:45,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 137.16666666666666) internal successors, (823), 6 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:45,193 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:45,193 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] [2022-12-13 15:44:45,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:45,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:45,395 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 15:44:45,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:45,395 INFO L85 PathProgramCache]: Analyzing trace with hash -53890979, now seen corresponding path program 1 times [2022-12-13 15:44:45,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:44:45,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134817832] [2022-12-13 15:44:45,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:45,396 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 15:44:45,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:44:45,398 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:45,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:45,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:44:45,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:44:45,573 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 15:44:45,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:44:45,574 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:44:45,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134817832] [2022-12-13 15:44:45,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134817832] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:45,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:45,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:44:45,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582027628] [2022-12-13 15:44:45,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:45,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:44:45,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:44:45,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:44:45,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:44:45,595 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 294 [2022-12-13 15:44:45,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 202 flow. Second operand has 5 states, 5 states have (on average 138.8) internal successors, (694), 5 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:45,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:45,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 294 [2022-12-13 15:44:45,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:45,880 INFO L130 PetriNetUnfolder]: 707/1194 cut-off events. [2022-12-13 15:44:45,880 INFO L131 PetriNetUnfolder]: For 1777/1777 co-relation queries the response was YES. [2022-12-13 15:44:45,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3609 conditions, 1194 events. 707/1194 cut-off events. For 1777/1777 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 6002 event pairs, 115 based on Foata normal form. 0/1192 useless extension candidates. Maximal degree in co-relation 3601. Up to 653 conditions per place. [2022-12-13 15:44:45,886 INFO L137 encePairwiseOnDemand]: 290/294 looper letters, 80 selfloop transitions, 3 changer transitions 0/85 dead transitions. [2022-12-13 15:44:45,887 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 85 transitions, 629 flow [2022-12-13 15:44:45,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:44:45,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:44:45,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 724 transitions. [2022-12-13 15:44:45,888 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4925170068027211 [2022-12-13 15:44:45,888 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 724 transitions. [2022-12-13 15:44:45,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 724 transitions. [2022-12-13 15:44:45,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:45,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 724 transitions. [2022-12-13 15:44:45,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.8) internal successors, (724), 5 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:45,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 294.0) internal successors, (1764), 6 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:45,891 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 294.0) internal successors, (1764), 6 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:45,892 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 202 flow. Second operand 5 states and 724 transitions. [2022-12-13 15:44:45,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 85 transitions, 629 flow [2022-12-13 15:44:45,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 85 transitions, 516 flow, removed 24 selfloop flow, removed 4 redundant places. [2022-12-13 15:44:45,897 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 173 flow [2022-12-13 15:44:45,897 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=173, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2022-12-13 15:44:45,898 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 1 predicate places. [2022-12-13 15:44:45,898 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 173 flow [2022-12-13 15:44:45,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 138.8) internal successors, (694), 5 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:45,898 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:45,898 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] [2022-12-13 15:44:45,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:46,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:46,100 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 15:44:46,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:46,101 INFO L85 PathProgramCache]: Analyzing trace with hash 298032099, now seen corresponding path program 2 times [2022-12-13 15:44:46,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:44:46,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041517825] [2022-12-13 15:44:46,104 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 15:44:46,104 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 15:44:46,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:44:46,108 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:46,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:46,264 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 15:44:46,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:44:46,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:44:46,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:44:46,306 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 15:44:46,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:44:46,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:44:46,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041517825] [2022-12-13 15:44:46,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041517825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:46,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:46,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:44:46,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848994780] [2022-12-13 15:44:46,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:46,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:44:46,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:44:46,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:44:46,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:44:46,324 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 294 [2022-12-13 15:44:46,325 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 173 flow. Second operand has 5 states, 5 states have (on average 138.8) internal successors, (694), 5 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:46,325 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:46,325 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 294 [2022-12-13 15:44:46,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:46,686 INFO L130 PetriNetUnfolder]: 1178/1955 cut-off events. [2022-12-13 15:44:46,686 INFO L131 PetriNetUnfolder]: For 1716/1716 co-relation queries the response was YES. [2022-12-13 15:44:46,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5552 conditions, 1955 events. 1178/1955 cut-off events. For 1716/1716 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 10417 event pairs, 213 based on Foata normal form. 1/1951 useless extension candidates. Maximal degree in co-relation 5541. Up to 951 conditions per place. [2022-12-13 15:44:46,692 INFO L137 encePairwiseOnDemand]: 290/294 looper letters, 84 selfloop transitions, 4 changer transitions 0/91 dead transitions. [2022-12-13 15:44:46,692 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 91 transitions, 566 flow [2022-12-13 15:44:46,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:44:46,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:44:46,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 727 transitions. [2022-12-13 15:44:46,694 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49455782312925173 [2022-12-13 15:44:46,694 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 727 transitions. [2022-12-13 15:44:46,694 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 727 transitions. [2022-12-13 15:44:46,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:46,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 727 transitions. [2022-12-13 15:44:46,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 145.4) internal successors, (727), 5 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:46,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 294.0) internal successors, (1764), 6 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:46,696 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 294.0) internal successors, (1764), 6 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:46,696 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 173 flow. Second operand 5 states and 727 transitions. [2022-12-13 15:44:46,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 91 transitions, 566 flow [2022-12-13 15:44:46,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 91 transitions, 564 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:44:46,708 INFO L231 Difference]: Finished difference. Result has 58 places, 44 transitions, 207 flow [2022-12-13 15:44:46,708 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=207, PETRI_PLACES=58, PETRI_TRANSITIONS=44} [2022-12-13 15:44:46,708 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 7 predicate places. [2022-12-13 15:44:46,709 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 44 transitions, 207 flow [2022-12-13 15:44:46,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 138.8) internal successors, (694), 5 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:46,709 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:46,709 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] [2022-12-13 15:44:46,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:46,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:46,911 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 15:44:46,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:46,912 INFO L85 PathProgramCache]: Analyzing trace with hash -951008590, now seen corresponding path program 1 times [2022-12-13 15:44:46,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:44:46,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [236559188] [2022-12-13 15:44:46,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:44:46,915 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 15:44:46,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:44:46,918 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:46,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:44:47,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 15:44:47,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:44:47,569 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 15:44:47,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:44:47,570 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:44:47,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [236559188] [2022-12-13 15:44:47,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [236559188] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:47,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:47,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:44:47,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011362564] [2022-12-13 15:44:47,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:47,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:44:47,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:44:47,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:44:47,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:44:48,194 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 294 [2022-12-13 15:44:48,195 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 44 transitions, 207 flow. Second operand has 6 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:48,195 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:48,195 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 294 [2022-12-13 15:44:48,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:48,657 INFO L130 PetriNetUnfolder]: 942/1546 cut-off events. [2022-12-13 15:44:48,657 INFO L131 PetriNetUnfolder]: For 2019/2019 co-relation queries the response was YES. [2022-12-13 15:44:48,659 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4806 conditions, 1546 events. 942/1546 cut-off events. For 2019/2019 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 8139 event pairs, 77 based on Foata normal form. 4/1512 useless extension candidates. Maximal degree in co-relation 4792. Up to 1293 conditions per place. [2022-12-13 15:44:48,661 INFO L137 encePairwiseOnDemand]: 289/294 looper letters, 34 selfloop transitions, 4 changer transitions 23/64 dead transitions. [2022-12-13 15:44:48,661 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 64 transitions, 433 flow [2022-12-13 15:44:48,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:44:48,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:44:48,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 751 transitions. [2022-12-13 15:44:48,663 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4257369614512472 [2022-12-13 15:44:48,663 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 751 transitions. [2022-12-13 15:44:48,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 751 transitions. [2022-12-13 15:44:48,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:48,663 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 751 transitions. [2022-12-13 15:44:48,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:48,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:48,665 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 294.0) internal successors, (2058), 7 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:48,665 INFO L175 Difference]: Start difference. First operand has 58 places, 44 transitions, 207 flow. Second operand 6 states and 751 transitions. [2022-12-13 15:44:48,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 64 transitions, 433 flow [2022-12-13 15:44:48,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 64 transitions, 430 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:44:48,672 INFO L231 Difference]: Finished difference. Result has 61 places, 38 transitions, 174 flow [2022-12-13 15:44:48,672 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=174, PETRI_PLACES=61, PETRI_TRANSITIONS=38} [2022-12-13 15:44:48,673 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 10 predicate places. [2022-12-13 15:44:48,673 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 38 transitions, 174 flow [2022-12-13 15:44:48,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:48,673 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:48,673 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] [2022-12-13 15:44:48,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:48,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:48,875 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 15:44:48,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:48,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1531925173, now seen corresponding path program 3 times [2022-12-13 15:44:48,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:44:48,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [124093424] [2022-12-13 15:44:48,876 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 15:44:48,876 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 15:44:48,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:44:48,878 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:48,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:49,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-13 15:44:49,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:44:49,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 15:44:49,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:44:49,081 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 15:44:49,081 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:44:49,081 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:44:49,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [124093424] [2022-12-13 15:44:49,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [124093424] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:49,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:49,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:44:49,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750386716] [2022-12-13 15:44:49,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:49,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:44:49,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:44:49,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:44:49,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:44:49,100 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 294 [2022-12-13 15:44:49,101 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 38 transitions, 174 flow. Second operand has 5 states, 5 states have (on average 138.8) internal successors, (694), 5 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:49,101 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:49,101 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 294 [2022-12-13 15:44:49,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:49,384 INFO L130 PetriNetUnfolder]: 1188/1889 cut-off events. [2022-12-13 15:44:49,384 INFO L131 PetriNetUnfolder]: For 1646/1647 co-relation queries the response was YES. [2022-12-13 15:44:49,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5772 conditions, 1889 events. 1188/1889 cut-off events. For 1646/1647 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 9295 event pairs, 159 based on Foata normal form. 1/1843 useless extension candidates. Maximal degree in co-relation 5758. Up to 1000 conditions per place. [2022-12-13 15:44:49,388 INFO L137 encePairwiseOnDemand]: 290/294 looper letters, 45 selfloop transitions, 1 changer transitions 33/81 dead transitions. [2022-12-13 15:44:49,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 81 transitions, 536 flow [2022-12-13 15:44:49,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 15:44:49,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 15:44:49,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 720 transitions. [2022-12-13 15:44:49,390 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4897959183673469 [2022-12-13 15:44:49,390 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 720 transitions. [2022-12-13 15:44:49,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 720 transitions. [2022-12-13 15:44:49,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:49,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 720 transitions. [2022-12-13 15:44:49,391 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 15:44:49,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 294.0) internal successors, (1764), 6 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:49,393 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 294.0) internal successors, (1764), 6 states have internal predecessors, (1764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:49,393 INFO L175 Difference]: Start difference. First operand has 61 places, 38 transitions, 174 flow. Second operand 5 states and 720 transitions. [2022-12-13 15:44:49,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 81 transitions, 536 flow [2022-12-13 15:44:49,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 81 transitions, 515 flow, removed 6 selfloop flow, removed 8 redundant places. [2022-12-13 15:44:49,403 INFO L231 Difference]: Finished difference. Result has 56 places, 38 transitions, 168 flow [2022-12-13 15:44:49,403 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=168, PETRI_PLACES=56, PETRI_TRANSITIONS=38} [2022-12-13 15:44:49,404 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 5 predicate places. [2022-12-13 15:44:49,404 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 38 transitions, 168 flow [2022-12-13 15:44:49,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 138.8) internal successors, (694), 5 states have internal predecessors, (694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:49,404 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:49,405 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] [2022-12-13 15:44:49,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:49,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:49,607 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 15:44:49,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:49,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1410200309, now seen corresponding path program 4 times [2022-12-13 15:44:49,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:44:49,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875634052] [2022-12-13 15:44:49,609 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 15:44:49,609 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 15:44:49,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:44:49,612 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:49,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:49,805 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 15:44:49,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 15:44:49,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 15:44:49,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:44:49,920 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 15:44:49,920 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:44:49,921 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:44:49,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875634052] [2022-12-13 15:44:49,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875634052] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:44:49,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:44:49,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:44:49,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741742126] [2022-12-13 15:44:49,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:44:49,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 15:44:49,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:44:49,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 15:44:49,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 15:44:49,945 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 294 [2022-12-13 15:44:49,946 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 38 transitions, 168 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 15:44:49,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:44:49,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 294 [2022-12-13 15:44:49,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:44:50,203 INFO L130 PetriNetUnfolder]: 836/1390 cut-off events. [2022-12-13 15:44:50,203 INFO L131 PetriNetUnfolder]: For 1691/1691 co-relation queries the response was YES. [2022-12-13 15:44:50,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4451 conditions, 1390 events. 836/1390 cut-off events. For 1691/1691 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6630 event pairs, 273 based on Foata normal form. 1/1322 useless extension candidates. Maximal degree in co-relation 4438. Up to 498 conditions per place. [2022-12-13 15:44:50,206 INFO L137 encePairwiseOnDemand]: 287/294 looper letters, 40 selfloop transitions, 4 changer transitions 38/85 dead transitions. [2022-12-13 15:44:50,206 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 85 transitions, 582 flow [2022-12-13 15:44:50,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:44:50,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 15:44:50,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1103 transitions. [2022-12-13 15:44:50,208 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4689625850340136 [2022-12-13 15:44:50,209 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1103 transitions. [2022-12-13 15:44:50,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1103 transitions. [2022-12-13 15:44:50,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:44:50,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1103 transitions. [2022-12-13 15:44:50,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 137.875) internal successors, (1103), 8 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:50,214 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 294.0) internal successors, (2646), 9 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:50,215 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 294.0) internal successors, (2646), 9 states have internal predecessors, (2646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:44:50,215 INFO L175 Difference]: Start difference. First operand has 56 places, 38 transitions, 168 flow. Second operand 8 states and 1103 transitions. [2022-12-13 15:44:50,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 85 transitions, 582 flow [2022-12-13 15:44:50,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 85 transitions, 573 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-12-13 15:44:50,222 INFO L231 Difference]: Finished difference. Result has 61 places, 38 transitions, 179 flow [2022-12-13 15:44:50,223 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=179, PETRI_PLACES=61, PETRI_TRANSITIONS=38} [2022-12-13 15:44:50,223 INFO L288 CegarLoopForPetriNet]: 51 programPoint places, 10 predicate places. [2022-12-13 15:44:50,223 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 38 transitions, 179 flow [2022-12-13 15:44:50,224 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 15:44:50,224 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:44:50,224 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] [2022-12-13 15:44:50,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:50,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:50,425 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 15:44:50,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:44:50,426 INFO L85 PathProgramCache]: Analyzing trace with hash 168479221, now seen corresponding path program 5 times [2022-12-13 15:44:50,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:44:50,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323791831] [2022-12-13 15:44:50,427 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 15:44:50,427 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 15:44:50,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:44:50,428 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:50,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:50,551 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 15:44:50,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-12-13 15:44:50,551 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:44:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:44:50,667 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 15:44:50,667 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 15:44:50,668 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-13 15:44:50,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-13 15:44:50,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-13 15:44:50,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-13 15:44:50,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-13 15:44:50,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-13 15:44:50,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-13 15:44:50,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-13 15:44:50,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-13 15:44:50,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-13 15:44:50,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-13 15:44:50,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-13 15:44:50,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-13 15:44:50,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-13 15:44:50,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-13 15:44:50,671 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-13 15:44:50,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:50,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/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 15:44:50,872 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:44:50,876 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 15:44:50,876 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:44:50,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:44:50 BasicIcfg [2022-12-13 15:44:50,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:44:50,936 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:44:50,936 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:44:50,936 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:44:50,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:44:33" (3/4) ... [2022-12-13 15:44:50,939 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 15:44:50,939 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:44:50,939 INFO L158 Benchmark]: Toolchain (without parser) took 18721.84ms. Allocated memory was 60.8MB in the beginning and 486.5MB in the end (delta: 425.7MB). Free memory was 38.2MB in the beginning and 132.2MB in the end (delta: -94.0MB). Peak memory consumption was 335.0MB. Max. memory is 16.1GB. [2022-12-13 15:44:50,939 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 48.2MB. Free memory was 26.8MB in the beginning and 26.8MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:44:50,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 481.91ms. Allocated memory is still 60.8MB. Free memory was 38.1MB in the beginning and 41.0MB in the end (delta: -3.0MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2022-12-13 15:44:50,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.69ms. Allocated memory is still 60.8MB. Free memory was 41.0MB in the beginning and 38.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:44:50,940 INFO L158 Benchmark]: Boogie Preprocessor took 20.83ms. Allocated memory is still 60.8MB. Free memory was 38.4MB in the beginning and 36.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:44:50,940 INFO L158 Benchmark]: RCFGBuilder took 607.08ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 36.3MB in the beginning and 40.7MB in the end (delta: -4.4MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2022-12-13 15:44:50,941 INFO L158 Benchmark]: TraceAbstraction took 17570.95ms. Allocated memory was 73.4MB in the beginning and 486.5MB in the end (delta: 413.1MB). Free memory was 40.3MB in the beginning and 132.2MB in the end (delta: -91.9MB). Peak memory consumption was 322.1MB. Max. memory is 16.1GB. [2022-12-13 15:44:50,941 INFO L158 Benchmark]: Witness Printer took 2.60ms. Allocated memory is still 486.5MB. Free memory is still 132.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:44:50,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 48.2MB. Free memory was 26.8MB in the beginning and 26.8MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 481.91ms. Allocated memory is still 60.8MB. Free memory was 38.1MB in the beginning and 41.0MB in the end (delta: -3.0MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.69ms. Allocated memory is still 60.8MB. Free memory was 41.0MB in the beginning and 38.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.83ms. Allocated memory is still 60.8MB. Free memory was 38.4MB in the beginning and 36.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 607.08ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 36.3MB in the beginning and 40.7MB in the end (delta: -4.4MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * TraceAbstraction took 17570.95ms. Allocated memory was 73.4MB in the beginning and 486.5MB in the end (delta: 413.1MB). Free memory was 40.3MB in the beginning and 132.2MB in the end (delta: -91.9MB). Peak memory consumption was 322.1MB. Max. memory is 16.1GB. * Witness Printer took 2.60ms. Allocated memory is still 486.5MB. Free memory is still 132.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.7s, 158 PlacesBefore, 51 PlacesAfterwards, 147 TransitionsBefore, 39 TransitionsAfterwards, 3352 CoEnabledTransitionPairs, 7 FixpointIterations, 60 TrivialSequentialCompositions, 75 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 143 TotalNumberOfCompositions, 7956 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3586, independent: 3385, independent conditional: 0, independent unconditional: 3385, dependent: 201, dependent conditional: 0, dependent unconditional: 201, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1763, independent: 1730, independent conditional: 0, independent unconditional: 1730, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3586, independent: 1655, independent conditional: 0, independent unconditional: 1655, dependent: 168, dependent conditional: 0, dependent unconditional: 168, unknown: 1763, unknown conditional: 0, unknown unconditional: 1763] , Statistics on independence cache: Total cache size (in pairs): 167, Positive cache size: 149, Positive conditional cache size: 0, Positive unconditional cache size: 149, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, 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_p2_EAX = 0; [L718] 0 int __unbuffered_p3_EAX = 0; [L720] 0 int __unbuffered_p3_EBX = 0; [L722] 0 int a = 0; [L724] 0 int b = 0; [L725] 0 _Bool main$tmp_guard0; [L726] 0 _Bool main$tmp_guard1; [L728] 0 int x = 0; [L730] 0 int y = 0; [L732] 0 int z = 0; [L733] 0 _Bool z$flush_delayed; [L734] 0 int z$mem_tmp; [L735] 0 _Bool z$r_buff0_thd0; [L736] 0 _Bool z$r_buff0_thd1; [L737] 0 _Bool z$r_buff0_thd2; [L738] 0 _Bool z$r_buff0_thd3; [L739] 0 _Bool z$r_buff0_thd4; [L740] 0 _Bool z$r_buff1_thd0; [L741] 0 _Bool z$r_buff1_thd1; [L742] 0 _Bool z$r_buff1_thd2; [L743] 0 _Bool z$r_buff1_thd3; [L744] 0 _Bool z$r_buff1_thd4; [L745] 0 _Bool z$read_delayed; [L746] 0 int *z$read_delayed_var; [L747] 0 int z$w_buff0; [L748] 0 _Bool z$w_buff0_used; [L749] 0 int z$w_buff1; [L750] 0 _Bool z$w_buff1_used; [L751] 0 _Bool weak$$choice0; [L752] 0 _Bool weak$$choice2; [L858] 0 pthread_t t949; [L859] FCALL, FORK 0 pthread_create(&t949, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t949, ((void *)0), P0, ((void *)0))=0, t949={11:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L860] 0 pthread_t t950; [L861] FCALL, FORK 0 pthread_create(&t950, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t950, ((void *)0), P1, ((void *)0))=1, t949={11:0}, t950={15:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L862] 0 pthread_t t951; [L863] FCALL, FORK 0 pthread_create(&t951, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t951, ((void *)0), P2, ((void *)0))=2, t949={11:0}, t950={15:0}, t951={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L864] 0 pthread_t t952; [L865] FCALL, FORK 0 pthread_create(&t952, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t952, ((void *)0), P3, ((void *)0))=3, t949={11:0}, t950={15:0}, t951={7:0}, t952={-2147483637:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L814] 4 z$w_buff1 = z$w_buff0 [L815] 4 z$w_buff0 = 1 [L816] 4 z$w_buff1_used = z$w_buff0_used [L817] 4 z$w_buff0_used = (_Bool)1 [L818] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L818] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L819] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L820] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L821] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L822] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L823] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L824] 4 z$r_buff0_thd4 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L827] 4 a = 1 [L830] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L833] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L756] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L759] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L771] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L774] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L786] 3 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L764] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L766] 1 return 0; [L789] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L790] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L791] 3 z$flush_delayed = weak$$choice2 [L792] 3 z$mem_tmp = z [L793] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L794] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L795] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L796] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L797] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L798] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L799] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L800] 3 __unbuffered_p2_EAX = z [L801] 3 z = z$flush_delayed ? z$mem_tmp : z [L802] 3 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_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$$choice0=2, weak$$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$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L779] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L781] 2 return 0; [L807] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L809] 3 return 0; [L836] 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) [L837] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L838] 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 [L839] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L840] 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_p2_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$$choice0=2, weak$$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$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L843] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L845] 4 return 0; [L867] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L869] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L869] RET 0 assume_abort_if_not(main$tmp_guard0) [L871] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L872] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L873] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L874] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L875] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t949={11:0}, t950={15:0}, t951={7:0}, t952={-2147483637:0}, weak$$choice0=2, weak$$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$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L878] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L880] CALL 0 __VERIFIER_assert(main$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_p2_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=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$w_buff0=1, z$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: 856]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 859]: 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: 861]: 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: 865]: 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: 863]: 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: 17.4s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 426 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 319 mSDsluCounter, 133 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98 mSDsCounter, 47 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1844 IncrementalHoareTripleChecker+Invalid, 1891 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 47 mSolverCounterUnsat, 35 mSDtfsCounter, 1844 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 205 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=207occurred in iteration=8, InterpolantAutomatonStates: 52, 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, 0.6s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 195 ConstructedInterpolants, 21 QuantifiedInterpolants, 1787 SizeOfPredicates, 27 NumberOfNonLiveVariables, 1679 ConjunctsInSsa, 78 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 15:44:50,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f1894d95-c9d2-4d7d-8599-a1f39d6fe81c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample