./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix033.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a 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_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix033.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R --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 eb14ef07a6b26c4855460091e3932f356dd44c86cf5744c08658c1a06a447e8e --- 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-38b53e6 [2022-11-25 16:59:59,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:00:00,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:00:00,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:00:00,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:00:00,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:00:00,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:00:00,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:00:00,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:00:00,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:00:00,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:00:00,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:00:00,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:00:00,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:00:00,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:00:00,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:00:00,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:00:00,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:00:00,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:00:00,063 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:00:00,064 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:00:00,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:00:00,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:00:00,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:00:00,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:00:00,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:00:00,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:00:00,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:00:00,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:00:00,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:00:00,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:00:00,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:00:00,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:00:00,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:00:00,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:00:00,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:00:00,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:00:00,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:00:00,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:00:00,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:00:00,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:00:00,098 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-25 17:00:00,120 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:00:00,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:00:00,121 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:00:00,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:00:00,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:00:00,122 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:00:00,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:00:00,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:00:00,123 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:00:00,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:00:00,124 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:00:00,124 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:00:00,125 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:00:00,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:00:00,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:00:00,126 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 17:00:00,126 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 17:00:00,126 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 17:00:00,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:00:00,127 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:00:00,127 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:00:00,127 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:00:00,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:00:00,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:00:00,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:00:00,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:00:00,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:00:00,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:00:00,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:00:00,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:00:00,130 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:00:00,130 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:00:00,131 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:00:00,131 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_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb14ef07a6b26c4855460091e3932f356dd44c86cf5744c08658c1a06a447e8e [2022-11-25 17:00:00,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:00:00,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:00:00,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:00:00,480 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:00:00,481 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:00:00,482 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-wmm/mix033.opt.i [2022-11-25 17:00:03,613 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:00:03,947 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:00:03,948 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/sv-benchmarks/c/pthread-wmm/mix033.opt.i [2022-11-25 17:00:03,965 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/data/a8687f7dc/d52a91bc4ecc44938ff41b9ab96b5fe2/FLAG9ca07d96b [2022-11-25 17:00:03,981 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/data/a8687f7dc/d52a91bc4ecc44938ff41b9ab96b5fe2 [2022-11-25 17:00:03,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:00:03,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:00:03,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:00:03,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:00:03,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:00:03,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:00:03" (1/1) ... [2022-11-25 17:00:03,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ea0655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:03, skipping insertion in model container [2022-11-25 17:00:03,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:00:03" (1/1) ... [2022-11-25 17:00:04,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:00:04,053 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:00:04,233 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_e94d15bc-9510-4d70-9b27-01ea8442636c/sv-benchmarks/c/pthread-wmm/mix033.opt.i[944,957] [2022-11-25 17:00:04,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,564 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,565 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,566 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,567 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,568 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,569 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,569 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,569 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,570 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,598 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,601 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,602 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,615 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,618 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,631 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,634 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,635 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:00:04,656 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:00:04,673 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_e94d15bc-9510-4d70-9b27-01ea8442636c/sv-benchmarks/c/pthread-wmm/mix033.opt.i[944,957] [2022-11-25 17:00:04,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,725 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,726 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,727 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,740 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,767 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,770 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,771 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,773 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:04,778 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:04,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:00:04,815 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:00:04,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:04 WrapperNode [2022-11-25 17:00:04,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:00:04,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:00:04,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:00:04,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:00:04,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:04" (1/1) ... [2022-11-25 17:00:04,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:04" (1/1) ... [2022-11-25 17:00:04,907 INFO L138 Inliner]: procedures = 176, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 138 [2022-11-25 17:00:04,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:00:04,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:00:04,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:00:04,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:00:04,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:04" (1/1) ... [2022-11-25 17:00:04,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:04" (1/1) ... [2022-11-25 17:00:04,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:04" (1/1) ... [2022-11-25 17:00:04,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:04" (1/1) ... [2022-11-25 17:00:04,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:04" (1/1) ... [2022-11-25 17:00:04,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:04" (1/1) ... [2022-11-25 17:00:04,961 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:04" (1/1) ... [2022-11-25 17:00:04,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:04" (1/1) ... [2022-11-25 17:00:04,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:00:04,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:00:04,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:00:04,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:00:04,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:04" (1/1) ... [2022-11-25 17:00:04,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:00:05,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:00:05,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:00:05,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:00:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:00:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 17:00:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:00:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:00:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:00:05,090 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 17:00:05,090 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 17:00:05,090 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 17:00:05,090 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 17:00:05,091 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 17:00:05,091 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 17:00:05,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:00:05,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 17:00:05,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:00:05,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:00:05,094 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:00:05,326 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:00:05,339 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:00:05,668 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:00:05,830 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:00:05,831 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:00:05,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:00:05 BoogieIcfgContainer [2022-11-25 17:00:05,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:00:05,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:00:05,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:00:05,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:00:05,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:00:03" (1/3) ... [2022-11-25 17:00:05,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163f0601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:00:05, skipping insertion in model container [2022-11-25 17:00:05,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:04" (2/3) ... [2022-11-25 17:00:05,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@163f0601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:00:05, skipping insertion in model container [2022-11-25 17:00:05,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:00:05" (3/3) ... [2022-11-25 17:00:05,845 INFO L112 eAbstractionObserver]: Analyzing ICFG mix033.opt.i [2022-11-25 17:00:05,865 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:00:05,866 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-25 17:00:05,866 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:00:05,944 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:00:06,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 131 transitions, 277 flow [2022-11-25 17:00:06,071 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2022-11-25 17:00:06,072 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:00:06,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2022-11-25 17:00:06,081 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 131 transitions, 277 flow [2022-11-25 17:00:06,086 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 128 transitions, 265 flow [2022-11-25 17:00:06,091 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:00:06,108 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 136 places, 128 transitions, 265 flow [2022-11-25 17:00:06,112 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 136 places, 128 transitions, 265 flow [2022-11-25 17:00:06,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 128 transitions, 265 flow [2022-11-25 17:00:06,195 INFO L130 PetriNetUnfolder]: 2/128 cut-off events. [2022-11-25 17:00:06,197 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:00:06,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 128 events. 2/128 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2022-11-25 17:00:06,201 INFO L119 LiptonReduction]: Number of co-enabled transitions 2464 [2022-11-25 17:00:12,401 INFO L134 LiptonReduction]: Checked pairs total: 5644 [2022-11-25 17:00:12,402 INFO L136 LiptonReduction]: Total number of compositions: 130 [2022-11-25 17:00:12,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:00:12,428 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;@432c8210, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:00:12,429 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-25 17:00:12,431 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-11-25 17:00:12,434 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:00:12,435 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:12,435 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:00:12,436 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:12,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:12,443 INFO L85 PathProgramCache]: Analyzing trace with hash 544, now seen corresponding path program 1 times [2022-11-25 17:00:12,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:12,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900660623] [2022-11-25 17:00:12,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:12,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:12,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:12,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:12,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900660623] [2022-11-25 17:00:12,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900660623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:12,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:12,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:00:12,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497589953] [2022-11-25 17:00:12,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:12,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:00:12,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:12,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:00:12,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:00:12,681 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 261 [2022-11-25 17:00:12,684 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 73 flow. Second operand has 2 states, 2 states have (on average 120.5) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:12,684 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:12,685 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 261 [2022-11-25 17:00:12,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:13,210 INFO L130 PetriNetUnfolder]: 1408/2121 cut-off events. [2022-11-25 17:00:13,211 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-25 17:00:13,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4239 conditions, 2121 events. 1408/2121 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 10086 event pairs, 1408 based on Foata normal form. 0/1820 useless extension candidates. Maximal degree in co-relation 4228. Up to 2076 conditions per place. [2022-11-25 17:00:13,235 INFO L137 encePairwiseOnDemand]: 254/261 looper letters, 23 selfloop transitions, 0 changer transitions 0/25 dead transitions. [2022-11-25 17:00:13,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 25 transitions, 105 flow [2022-11-25 17:00:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:00:13,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:00:13,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 270 transitions. [2022-11-25 17:00:13,263 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5172413793103449 [2022-11-25 17:00:13,264 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 270 transitions. [2022-11-25 17:00:13,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 270 transitions. [2022-11-25 17:00:13,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:13,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 270 transitions. [2022-11-25 17:00:13,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 135.0) internal successors, (270), 2 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:13,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:13,284 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:13,287 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 73 flow. Second operand 2 states and 270 transitions. [2022-11-25 17:00:13,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 25 transitions, 105 flow [2022-11-25 17:00:13,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 25 transitions, 102 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 17:00:13,308 INFO L231 Difference]: Finished difference. Result has 33 places, 25 transitions, 56 flow [2022-11-25 17:00:13,312 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=56, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2022-11-25 17:00:13,316 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -8 predicate places. [2022-11-25 17:00:13,320 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 56 flow [2022-11-25 17:00:13,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 120.5) internal successors, (241), 2 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:13,321 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:13,321 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:00:13,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:00:13,322 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:13,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:13,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1134906649, now seen corresponding path program 1 times [2022-11-25 17:00:13,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:13,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706938364] [2022-11-25 17:00:13,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:13,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:13,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:13,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:13,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706938364] [2022-11-25 17:00:13,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706938364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:13,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:13,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:00:13,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503378438] [2022-11-25 17:00:13,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:13,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:00:13,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:13,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:00:13,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:00:13,716 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 261 [2022-11-25 17:00:13,717 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:13,717 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:13,739 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 261 [2022-11-25 17:00:13,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:14,100 INFO L130 PetriNetUnfolder]: 1164/1832 cut-off events. [2022-11-25 17:00:14,101 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:00:14,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3599 conditions, 1832 events. 1164/1832 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 9193 event pairs, 188 based on Foata normal form. 0/1681 useless extension candidates. Maximal degree in co-relation 3596. Up to 1397 conditions per place. [2022-11-25 17:00:14,114 INFO L137 encePairwiseOnDemand]: 258/261 looper letters, 30 selfloop transitions, 2 changer transitions 2/36 dead transitions. [2022-11-25 17:00:14,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 146 flow [2022-11-25 17:00:14,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:00:14,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:00:14,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 392 transitions. [2022-11-25 17:00:14,118 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5006385696040868 [2022-11-25 17:00:14,118 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 392 transitions. [2022-11-25 17:00:14,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 392 transitions. [2022-11-25 17:00:14,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:14,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 392 transitions. [2022-11-25 17:00:14,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.66666666666666) internal successors, (392), 3 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:14,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 261.0) internal successors, (1044), 4 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:14,126 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 261.0) internal successors, (1044), 4 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:14,126 INFO L175 Difference]: Start difference. First operand has 33 places, 25 transitions, 56 flow. Second operand 3 states and 392 transitions. [2022-11-25 17:00:14,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 146 flow [2022-11-25 17:00:14,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 146 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:00:14,128 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 56 flow [2022-11-25 17:00:14,129 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2022-11-25 17:00:14,129 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -7 predicate places. [2022-11-25 17:00:14,130 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 56 flow [2022-11-25 17:00:14,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:14,131 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:14,131 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:00:14,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:00:14,132 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:14,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:14,135 INFO L85 PathProgramCache]: Analyzing trace with hash 24695662, now seen corresponding path program 1 times [2022-11-25 17:00:14,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:14,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906888619] [2022-11-25 17:00:14,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:14,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:14,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:14,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:14,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906888619] [2022-11-25 17:00:14,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906888619] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:14,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:14,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:00:14,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266300344] [2022-11-25 17:00:14,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:14,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:00:14,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:14,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:00:14,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:00:14,443 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 261 [2022-11-25 17:00:14,444 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:14,444 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:14,445 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 261 [2022-11-25 17:00:14,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:15,198 INFO L130 PetriNetUnfolder]: 2911/4360 cut-off events. [2022-11-25 17:00:15,199 INFO L131 PetriNetUnfolder]: For 200/200 co-relation queries the response was YES. [2022-11-25 17:00:15,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9003 conditions, 4360 events. 2911/4360 cut-off events. For 200/200 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 22316 event pairs, 895 based on Foata normal form. 0/4192 useless extension candidates. Maximal degree in co-relation 8999. Up to 2401 conditions per place. [2022-11-25 17:00:15,228 INFO L137 encePairwiseOnDemand]: 252/261 looper letters, 54 selfloop transitions, 14 changer transitions 0/68 dead transitions. [2022-11-25 17:00:15,228 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 68 transitions, 290 flow [2022-11-25 17:00:15,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:00:15,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:00:15,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 615 transitions. [2022-11-25 17:00:15,231 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47126436781609193 [2022-11-25 17:00:15,231 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 615 transitions. [2022-11-25 17:00:15,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 615 transitions. [2022-11-25 17:00:15,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:15,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 615 transitions. [2022-11-25 17:00:15,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 123.0) internal successors, (615), 5 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:15,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 261.0) internal successors, (1566), 6 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:15,238 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 261.0) internal successors, (1566), 6 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:15,238 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 56 flow. Second operand 5 states and 615 transitions. [2022-11-25 17:00:15,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 68 transitions, 290 flow [2022-11-25 17:00:15,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 68 transitions, 280 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:00:15,242 INFO L231 Difference]: Finished difference. Result has 39 places, 36 transitions, 164 flow [2022-11-25 17:00:15,242 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=164, PETRI_PLACES=39, PETRI_TRANSITIONS=36} [2022-11-25 17:00:15,243 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -2 predicate places. [2022-11-25 17:00:15,243 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 36 transitions, 164 flow [2022-11-25 17:00:15,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 111.5) internal successors, (446), 4 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:15,244 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:15,244 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:00:15,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:00:15,245 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:15,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:15,246 INFO L85 PathProgramCache]: Analyzing trace with hash 24695705, now seen corresponding path program 1 times [2022-11-25 17:00:15,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:15,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585693229] [2022-11-25 17:00:15,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:15,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:15,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:15,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:15,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585693229] [2022-11-25 17:00:15,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585693229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:15,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:15,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:00:15,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784408174] [2022-11-25 17:00:15,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:15,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:00:15,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:15,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:00:15,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:00:16,091 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 261 [2022-11-25 17:00:16,092 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 164 flow. Second operand has 6 states, 6 states have (on average 106.66666666666667) internal successors, (640), 6 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:16,092 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:16,092 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 261 [2022-11-25 17:00:16,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:17,056 INFO L130 PetriNetUnfolder]: 3013/4747 cut-off events. [2022-11-25 17:00:17,058 INFO L131 PetriNetUnfolder]: For 3060/3080 co-relation queries the response was YES. [2022-11-25 17:00:17,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13150 conditions, 4747 events. 3013/4747 cut-off events. For 3060/3080 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 28007 event pairs, 1212 based on Foata normal form. 314/5020 useless extension candidates. Maximal degree in co-relation 13143. Up to 1887 conditions per place. [2022-11-25 17:00:17,098 INFO L137 encePairwiseOnDemand]: 256/261 looper letters, 56 selfloop transitions, 7 changer transitions 8/76 dead transitions. [2022-11-25 17:00:17,098 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 76 transitions, 456 flow [2022-11-25 17:00:17,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:00:17,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:00:17,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 684 transitions. [2022-11-25 17:00:17,101 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4367816091954023 [2022-11-25 17:00:17,101 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 684 transitions. [2022-11-25 17:00:17,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 684 transitions. [2022-11-25 17:00:17,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:17,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 684 transitions. [2022-11-25 17:00:17,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 114.0) internal successors, (684), 6 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:17,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:17,109 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:17,109 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 164 flow. Second operand 6 states and 684 transitions. [2022-11-25 17:00:17,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 76 transitions, 456 flow [2022-11-25 17:00:17,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 76 transitions, 456 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:00:17,119 INFO L231 Difference]: Finished difference. Result has 47 places, 36 transitions, 189 flow [2022-11-25 17:00:17,120 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=189, PETRI_PLACES=47, PETRI_TRANSITIONS=36} [2022-11-25 17:00:17,122 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 6 predicate places. [2022-11-25 17:00:17,122 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 36 transitions, 189 flow [2022-11-25 17:00:17,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 106.66666666666667) internal successors, (640), 6 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:17,123 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:17,123 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:00:17,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:00:17,124 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:17,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:17,124 INFO L85 PathProgramCache]: Analyzing trace with hash -756153533, now seen corresponding path program 1 times [2022-11-25 17:00:17,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:17,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753682177] [2022-11-25 17:00:17,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:17,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:17,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:17,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:17,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753682177] [2022-11-25 17:00:17,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753682177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:17,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:17,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:00:17,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788584671] [2022-11-25 17:00:17,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:17,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:00:17,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:17,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:00:17,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:00:17,417 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 261 [2022-11-25 17:00:17,418 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 36 transitions, 189 flow. Second operand has 5 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:17,418 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:17,418 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 261 [2022-11-25 17:00:17,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:18,460 INFO L130 PetriNetUnfolder]: 3535/5466 cut-off events. [2022-11-25 17:00:18,461 INFO L131 PetriNetUnfolder]: For 4905/4905 co-relation queries the response was YES. [2022-11-25 17:00:18,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16040 conditions, 5466 events. 3535/5466 cut-off events. For 4905/4905 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 30858 event pairs, 977 based on Foata normal form. 168/5634 useless extension candidates. Maximal degree in co-relation 16029. Up to 2701 conditions per place. [2022-11-25 17:00:18,512 INFO L137 encePairwiseOnDemand]: 253/261 looper letters, 62 selfloop transitions, 13 changer transitions 24/99 dead transitions. [2022-11-25 17:00:18,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 99 transitions, 645 flow [2022-11-25 17:00:18,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:00:18,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 17:00:18,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 847 transitions. [2022-11-25 17:00:18,516 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46360153256704983 [2022-11-25 17:00:18,516 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 847 transitions. [2022-11-25 17:00:18,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 847 transitions. [2022-11-25 17:00:18,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:18,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 847 transitions. [2022-11-25 17:00:18,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 121.0) internal successors, (847), 7 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:18,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 261.0) internal successors, (2088), 8 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:18,531 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 261.0) internal successors, (2088), 8 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:18,532 INFO L175 Difference]: Start difference. First operand has 47 places, 36 transitions, 189 flow. Second operand 7 states and 847 transitions. [2022-11-25 17:00:18,532 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 99 transitions, 645 flow [2022-11-25 17:00:18,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 99 transitions, 638 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-25 17:00:18,545 INFO L231 Difference]: Finished difference. Result has 57 places, 39 transitions, 272 flow [2022-11-25 17:00:18,545 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=272, PETRI_PLACES=57, PETRI_TRANSITIONS=39} [2022-11-25 17:00:18,548 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 16 predicate places. [2022-11-25 17:00:18,548 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 39 transitions, 272 flow [2022-11-25 17:00:18,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.2) internal successors, (556), 5 states have internal predecessors, (556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:18,548 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:18,549 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:00:18,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:00:18,549 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:18,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:18,550 INFO L85 PathProgramCache]: Analyzing trace with hash 378768519, now seen corresponding path program 1 times [2022-11-25 17:00:18,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:18,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941523598] [2022-11-25 17:00:18,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:18,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:18,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:18,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:18,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941523598] [2022-11-25 17:00:18,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941523598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:18,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:18,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:00:18,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289821897] [2022-11-25 17:00:18,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:18,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:00:18,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:18,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:00:18,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:00:18,802 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 261 [2022-11-25 17:00:18,803 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 39 transitions, 272 flow. Second operand has 5 states, 5 states have (on average 111.4) internal successors, (557), 5 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:18,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:18,804 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 261 [2022-11-25 17:00:18,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:19,838 INFO L130 PetriNetUnfolder]: 3317/5140 cut-off events. [2022-11-25 17:00:19,839 INFO L131 PetriNetUnfolder]: For 13119/13119 co-relation queries the response was YES. [2022-11-25 17:00:19,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17150 conditions, 5140 events. 3317/5140 cut-off events. For 13119/13119 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 27893 event pairs, 703 based on Foata normal form. 216/5356 useless extension candidates. Maximal degree in co-relation 17134. Up to 2077 conditions per place. [2022-11-25 17:00:19,889 INFO L137 encePairwiseOnDemand]: 252/261 looper letters, 66 selfloop transitions, 22 changer transitions 0/88 dead transitions. [2022-11-25 17:00:19,890 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 88 transitions, 712 flow [2022-11-25 17:00:19,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:00:19,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 17:00:19,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 836 transitions. [2022-11-25 17:00:19,894 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4575807334428024 [2022-11-25 17:00:19,894 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 836 transitions. [2022-11-25 17:00:19,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 836 transitions. [2022-11-25 17:00:19,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:19,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 836 transitions. [2022-11-25 17:00:19,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 119.42857142857143) internal successors, (836), 7 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:19,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 261.0) internal successors, (2088), 8 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:19,903 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 261.0) internal successors, (2088), 8 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:19,903 INFO L175 Difference]: Start difference. First operand has 57 places, 39 transitions, 272 flow. Second operand 7 states and 836 transitions. [2022-11-25 17:00:19,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 88 transitions, 712 flow [2022-11-25 17:00:19,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 88 transitions, 680 flow, removed 7 selfloop flow, removed 4 redundant places. [2022-11-25 17:00:19,970 INFO L231 Difference]: Finished difference. Result has 64 places, 52 transitions, 486 flow [2022-11-25 17:00:19,971 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=486, PETRI_PLACES=64, PETRI_TRANSITIONS=52} [2022-11-25 17:00:19,973 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 23 predicate places. [2022-11-25 17:00:19,974 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 52 transitions, 486 flow [2022-11-25 17:00:19,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.4) internal successors, (557), 5 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:19,975 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:19,979 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:00:19,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:00:19,979 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:19,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:19,980 INFO L85 PathProgramCache]: Analyzing trace with hash 204923778, now seen corresponding path program 1 times [2022-11-25 17:00:19,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:19,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034054219] [2022-11-25 17:00:19,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:19,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:20,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:20,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:20,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034054219] [2022-11-25 17:00:20,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034054219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:20,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:20,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:00:20,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057011266] [2022-11-25 17:00:20,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:20,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:00:20,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:20,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:00:20,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:00:20,642 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 261 [2022-11-25 17:00:20,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 52 transitions, 486 flow. Second operand has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:20,643 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:20,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 261 [2022-11-25 17:00:20,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:21,394 INFO L130 PetriNetUnfolder]: 2269/3708 cut-off events. [2022-11-25 17:00:21,395 INFO L131 PetriNetUnfolder]: For 14056/14286 co-relation queries the response was YES. [2022-11-25 17:00:21,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13575 conditions, 3708 events. 2269/3708 cut-off events. For 14056/14286 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 21641 event pairs, 561 based on Foata normal form. 353/4008 useless extension candidates. Maximal degree in co-relation 13555. Up to 2368 conditions per place. [2022-11-25 17:00:21,429 INFO L137 encePairwiseOnDemand]: 256/261 looper letters, 39 selfloop transitions, 7 changer transitions 12/66 dead transitions. [2022-11-25 17:00:21,430 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 66 transitions, 658 flow [2022-11-25 17:00:21,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:00:21,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:00:21,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 669 transitions. [2022-11-25 17:00:21,433 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4272030651340996 [2022-11-25 17:00:21,433 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 669 transitions. [2022-11-25 17:00:21,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 669 transitions. [2022-11-25 17:00:21,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:21,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 669 transitions. [2022-11-25 17:00:21,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 111.5) internal successors, (669), 6 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:21,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:21,442 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:21,443 INFO L175 Difference]: Start difference. First operand has 64 places, 52 transitions, 486 flow. Second operand 6 states and 669 transitions. [2022-11-25 17:00:21,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 66 transitions, 658 flow [2022-11-25 17:00:21,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 66 transitions, 652 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-25 17:00:21,486 INFO L231 Difference]: Finished difference. Result has 67 places, 39 transitions, 339 flow [2022-11-25 17:00:21,486 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=339, PETRI_PLACES=67, PETRI_TRANSITIONS=39} [2022-11-25 17:00:21,487 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 26 predicate places. [2022-11-25 17:00:21,488 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 39 transitions, 339 flow [2022-11-25 17:00:21,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.0) internal successors, (642), 6 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:21,489 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:21,489 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:00:21,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:00:21,489 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:21,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:21,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1919238964, now seen corresponding path program 1 times [2022-11-25 17:00:21,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:21,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907734437] [2022-11-25 17:00:21,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:21,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:21,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:21,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:21,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:21,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907734437] [2022-11-25 17:00:21,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907734437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:21,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:21,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:00:21,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062741491] [2022-11-25 17:00:21,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:21,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:00:21,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:21,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:00:21,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:00:21,674 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 261 [2022-11-25 17:00:21,675 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 39 transitions, 339 flow. Second operand has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:21,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:21,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 261 [2022-11-25 17:00:21,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:22,194 INFO L130 PetriNetUnfolder]: 1452/2438 cut-off events. [2022-11-25 17:00:22,194 INFO L131 PetriNetUnfolder]: For 9387/9569 co-relation queries the response was YES. [2022-11-25 17:00:22,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8666 conditions, 2438 events. 1452/2438 cut-off events. For 9387/9569 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 14112 event pairs, 278 based on Foata normal form. 318/2704 useless extension candidates. Maximal degree in co-relation 8646. Up to 1507 conditions per place. [2022-11-25 17:00:22,217 INFO L137 encePairwiseOnDemand]: 255/261 looper letters, 65 selfloop transitions, 7 changer transitions 21/101 dead transitions. [2022-11-25 17:00:22,218 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 101 transitions, 1027 flow [2022-11-25 17:00:22,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:00:22,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:00:22,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 617 transitions. [2022-11-25 17:00:22,220 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4727969348659004 [2022-11-25 17:00:22,221 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 617 transitions. [2022-11-25 17:00:22,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 617 transitions. [2022-11-25 17:00:22,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:22,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 617 transitions. [2022-11-25 17:00:22,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 123.4) internal successors, (617), 5 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:22,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 261.0) internal successors, (1566), 6 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:22,226 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 261.0) internal successors, (1566), 6 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:22,227 INFO L175 Difference]: Start difference. First operand has 67 places, 39 transitions, 339 flow. Second operand 5 states and 617 transitions. [2022-11-25 17:00:22,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 101 transitions, 1027 flow [2022-11-25 17:00:22,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 101 transitions, 894 flow, removed 6 selfloop flow, removed 8 redundant places. [2022-11-25 17:00:22,246 INFO L231 Difference]: Finished difference. Result has 60 places, 45 transitions, 334 flow [2022-11-25 17:00:22,247 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=334, PETRI_PLACES=60, PETRI_TRANSITIONS=45} [2022-11-25 17:00:22,249 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 19 predicate places. [2022-11-25 17:00:22,250 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 45 transitions, 334 flow [2022-11-25 17:00:22,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.5) internal successors, (462), 4 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:22,250 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:22,251 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:00:22,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:00:22,251 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:22,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:22,253 INFO L85 PathProgramCache]: Analyzing trace with hash -458880194, now seen corresponding path program 1 times [2022-11-25 17:00:22,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:22,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608636919] [2022-11-25 17:00:22,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:22,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:22,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:22,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:22,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608636919] [2022-11-25 17:00:22,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608636919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:22,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:22,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:00:22,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375370198] [2022-11-25 17:00:22,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:22,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:00:22,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:22,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:00:22,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:00:22,570 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 261 [2022-11-25 17:00:22,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 45 transitions, 334 flow. Second operand has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:22,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:22,572 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 261 [2022-11-25 17:00:22,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:23,037 INFO L130 PetriNetUnfolder]: 1027/1825 cut-off events. [2022-11-25 17:00:23,037 INFO L131 PetriNetUnfolder]: For 4631/4863 co-relation queries the response was YES. [2022-11-25 17:00:23,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7429 conditions, 1825 events. 1027/1825 cut-off events. For 4631/4863 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 10667 event pairs, 110 based on Foata normal form. 244/2033 useless extension candidates. Maximal degree in co-relation 7408. Up to 630 conditions per place. [2022-11-25 17:00:23,053 INFO L137 encePairwiseOnDemand]: 255/261 looper letters, 76 selfloop transitions, 13 changer transitions 34/131 dead transitions. [2022-11-25 17:00:23,053 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 131 transitions, 1222 flow [2022-11-25 17:00:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:00:23,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 17:00:23,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 863 transitions. [2022-11-25 17:00:23,057 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4723590585659551 [2022-11-25 17:00:23,057 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 863 transitions. [2022-11-25 17:00:23,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 863 transitions. [2022-11-25 17:00:23,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:23,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 863 transitions. [2022-11-25 17:00:23,061 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 123.28571428571429) internal successors, (863), 7 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:23,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 261.0) internal successors, (2088), 8 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:23,065 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 261.0) internal successors, (2088), 8 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:23,065 INFO L175 Difference]: Start difference. First operand has 60 places, 45 transitions, 334 flow. Second operand 7 states and 863 transitions. [2022-11-25 17:00:23,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 131 transitions, 1222 flow [2022-11-25 17:00:23,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 131 transitions, 1200 flow, removed 9 selfloop flow, removed 6 redundant places. [2022-11-25 17:00:23,078 INFO L231 Difference]: Finished difference. Result has 63 places, 51 transitions, 406 flow [2022-11-25 17:00:23,078 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=406, PETRI_PLACES=63, PETRI_TRANSITIONS=51} [2022-11-25 17:00:23,079 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 22 predicate places. [2022-11-25 17:00:23,079 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 51 transitions, 406 flow [2022-11-25 17:00:23,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.2) internal successors, (576), 5 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:23,080 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:23,080 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:00:23,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:00:23,080 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:23,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:23,081 INFO L85 PathProgramCache]: Analyzing trace with hash 631986087, now seen corresponding path program 1 times [2022-11-25 17:00:23,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:23,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983581456] [2022-11-25 17:00:23,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:23,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:23,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:23,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:23,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:23,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983581456] [2022-11-25 17:00:23,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983581456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:23,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:23,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:00:23,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313587002] [2022-11-25 17:00:23,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:23,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:00:23,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:23,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:00:23,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:00:23,327 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 261 [2022-11-25 17:00:23,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 51 transitions, 406 flow. Second operand has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:23,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:23,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 261 [2022-11-25 17:00:23,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:23,745 INFO L130 PetriNetUnfolder]: 911/1619 cut-off events. [2022-11-25 17:00:23,746 INFO L131 PetriNetUnfolder]: For 5628/5859 co-relation queries the response was YES. [2022-11-25 17:00:23,751 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7385 conditions, 1619 events. 911/1619 cut-off events. For 5628/5859 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 9454 event pairs, 92 based on Foata normal form. 132/1717 useless extension candidates. Maximal degree in co-relation 7366. Up to 550 conditions per place. [2022-11-25 17:00:23,757 INFO L137 encePairwiseOnDemand]: 255/261 looper letters, 72 selfloop transitions, 17 changer transitions 34/131 dead transitions. [2022-11-25 17:00:23,757 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 131 transitions, 1262 flow [2022-11-25 17:00:23,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:00:23,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-25 17:00:23,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1087 transitions. [2022-11-25 17:00:23,767 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46275010642826736 [2022-11-25 17:00:23,767 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1087 transitions. [2022-11-25 17:00:23,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1087 transitions. [2022-11-25 17:00:23,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:23,769 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1087 transitions. [2022-11-25 17:00:23,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 120.77777777777777) internal successors, (1087), 9 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:23,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 261.0) internal successors, (2610), 10 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:23,777 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 261.0) internal successors, (2610), 10 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:23,778 INFO L175 Difference]: Start difference. First operand has 63 places, 51 transitions, 406 flow. Second operand 9 states and 1087 transitions. [2022-11-25 17:00:23,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 131 transitions, 1262 flow [2022-11-25 17:00:23,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 131 transitions, 1188 flow, removed 14 selfloop flow, removed 4 redundant places. [2022-11-25 17:00:23,823 INFO L231 Difference]: Finished difference. Result has 70 places, 52 transitions, 416 flow [2022-11-25 17:00:23,824 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=360, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=416, PETRI_PLACES=70, PETRI_TRANSITIONS=52} [2022-11-25 17:00:23,825 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 29 predicate places. [2022-11-25 17:00:23,825 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 52 transitions, 416 flow [2022-11-25 17:00:23,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.0) internal successors, (690), 6 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:23,826 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:23,826 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] [2022-11-25 17:00:23,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:00:23,827 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:23,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:23,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1798530553, now seen corresponding path program 1 times [2022-11-25 17:00:23,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:23,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406088740] [2022-11-25 17:00:23,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:23,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:24,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:24,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:24,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406088740] [2022-11-25 17:00:24,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406088740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:24,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:24,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:00:24,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277337909] [2022-11-25 17:00:24,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:24,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:00:24,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:24,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:00:24,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:00:24,172 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 261 [2022-11-25 17:00:24,173 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 52 transitions, 416 flow. Second operand has 5 states, 5 states have (on average 111.4) internal successors, (557), 5 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:24,174 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:24,174 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 261 [2022-11-25 17:00:24,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:24,746 INFO L130 PetriNetUnfolder]: 1275/2248 cut-off events. [2022-11-25 17:00:24,746 INFO L131 PetriNetUnfolder]: For 8862/8862 co-relation queries the response was YES. [2022-11-25 17:00:24,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10534 conditions, 2248 events. 1275/2248 cut-off events. For 8862/8862 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 12994 event pairs, 284 based on Foata normal form. 2/2250 useless extension candidates. Maximal degree in co-relation 10513. Up to 1059 conditions per place. [2022-11-25 17:00:24,762 INFO L137 encePairwiseOnDemand]: 251/261 looper letters, 56 selfloop transitions, 21 changer transitions 33/110 dead transitions. [2022-11-25 17:00:24,762 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 110 transitions, 1053 flow [2022-11-25 17:00:24,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:00:24,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:00:24,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 702 transitions. [2022-11-25 17:00:24,766 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4482758620689655 [2022-11-25 17:00:24,766 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 702 transitions. [2022-11-25 17:00:24,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 702 transitions. [2022-11-25 17:00:24,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:24,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 702 transitions. [2022-11-25 17:00:24,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 117.0) internal successors, (702), 6 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:24,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:24,774 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:24,774 INFO L175 Difference]: Start difference. First operand has 70 places, 52 transitions, 416 flow. Second operand 6 states and 702 transitions. [2022-11-25 17:00:24,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 110 transitions, 1053 flow [2022-11-25 17:00:24,831 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 110 transitions, 892 flow, removed 43 selfloop flow, removed 9 redundant places. [2022-11-25 17:00:24,833 INFO L231 Difference]: Finished difference. Result has 68 places, 53 transitions, 441 flow [2022-11-25 17:00:24,834 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=441, PETRI_PLACES=68, PETRI_TRANSITIONS=53} [2022-11-25 17:00:24,834 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 27 predicate places. [2022-11-25 17:00:24,835 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 53 transitions, 441 flow [2022-11-25 17:00:24,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 111.4) internal successors, (557), 5 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:24,835 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:24,836 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] [2022-11-25 17:00:24,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:00:24,836 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:24,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:24,837 INFO L85 PathProgramCache]: Analyzing trace with hash -456806463, now seen corresponding path program 2 times [2022-11-25 17:00:24,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:24,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359675760] [2022-11-25 17:00:24,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:24,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:25,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:25,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:25,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359675760] [2022-11-25 17:00:25,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359675760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:25,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:25,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:00:25,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617155852] [2022-11-25 17:00:25,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:25,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:00:25,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:25,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:00:25,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:00:25,467 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 261 [2022-11-25 17:00:25,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 53 transitions, 441 flow. Second operand has 8 states, 8 states have (on average 107.75) internal successors, (862), 8 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:25,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:25,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 261 [2022-11-25 17:00:25,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:26,123 INFO L130 PetriNetUnfolder]: 911/1716 cut-off events. [2022-11-25 17:00:26,124 INFO L131 PetriNetUnfolder]: For 7135/7135 co-relation queries the response was YES. [2022-11-25 17:00:26,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8012 conditions, 1716 events. 911/1716 cut-off events. For 7135/7135 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 10097 event pairs, 77 based on Foata normal form. 2/1718 useless extension candidates. Maximal degree in co-relation 7992. Up to 592 conditions per place. [2022-11-25 17:00:26,135 INFO L137 encePairwiseOnDemand]: 249/261 looper letters, 51 selfloop transitions, 46 changer transitions 79/176 dead transitions. [2022-11-25 17:00:26,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 176 transitions, 1853 flow [2022-11-25 17:00:26,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:00:26,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 17:00:26,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1145 transitions. [2022-11-25 17:00:26,140 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4386973180076628 [2022-11-25 17:00:26,140 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1145 transitions. [2022-11-25 17:00:26,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1145 transitions. [2022-11-25 17:00:26,142 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:26,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1145 transitions. [2022-11-25 17:00:26,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 114.5) internal successors, (1145), 10 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:26,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 261.0) internal successors, (2871), 11 states have internal predecessors, (2871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:26,150 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 261.0) internal successors, (2871), 11 states have internal predecessors, (2871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:26,150 INFO L175 Difference]: Start difference. First operand has 68 places, 53 transitions, 441 flow. Second operand 10 states and 1145 transitions. [2022-11-25 17:00:26,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 176 transitions, 1853 flow [2022-11-25 17:00:26,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 176 transitions, 1821 flow, removed 16 selfloop flow, removed 5 redundant places. [2022-11-25 17:00:26,176 INFO L231 Difference]: Finished difference. Result has 72 places, 79 transitions, 849 flow [2022-11-25 17:00:26,176 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=849, PETRI_PLACES=72, PETRI_TRANSITIONS=79} [2022-11-25 17:00:26,177 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 31 predicate places. [2022-11-25 17:00:26,177 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 79 transitions, 849 flow [2022-11-25 17:00:26,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 107.75) internal successors, (862), 8 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:26,178 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:26,178 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] [2022-11-25 17:00:26,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 17:00:26,178 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:26,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:26,179 INFO L85 PathProgramCache]: Analyzing trace with hash -496049869, now seen corresponding path program 3 times [2022-11-25 17:00:26,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:26,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222929124] [2022-11-25 17:00:26,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:26,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:26,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:26,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:26,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222929124] [2022-11-25 17:00:26,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222929124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:26,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:26,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:00:26,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086656071] [2022-11-25 17:00:26,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:26,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:00:26,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:26,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:00:26,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:00:26,703 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 261 [2022-11-25 17:00:26,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 79 transitions, 849 flow. Second operand has 8 states, 8 states have (on average 107.75) internal successors, (862), 8 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:26,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:26,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 261 [2022-11-25 17:00:26,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:27,342 INFO L130 PetriNetUnfolder]: 697/1371 cut-off events. [2022-11-25 17:00:27,342 INFO L131 PetriNetUnfolder]: For 7066/7066 co-relation queries the response was YES. [2022-11-25 17:00:27,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7109 conditions, 1371 events. 697/1371 cut-off events. For 7066/7066 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 7969 event pairs, 56 based on Foata normal form. 2/1373 useless extension candidates. Maximal degree in co-relation 7087. Up to 392 conditions per place. [2022-11-25 17:00:27,352 INFO L137 encePairwiseOnDemand]: 249/261 looper letters, 41 selfloop transitions, 16 changer transitions 103/160 dead transitions. [2022-11-25 17:00:27,353 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 160 transitions, 1774 flow [2022-11-25 17:00:27,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:00:27,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-25 17:00:27,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1139 transitions. [2022-11-25 17:00:27,357 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4363984674329502 [2022-11-25 17:00:27,357 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1139 transitions. [2022-11-25 17:00:27,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1139 transitions. [2022-11-25 17:00:27,358 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:27,358 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1139 transitions. [2022-11-25 17:00:27,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 113.9) internal successors, (1139), 10 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) [2022-11-25 17:00:27,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 261.0) internal successors, (2871), 11 states have internal predecessors, (2871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:27,366 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 261.0) internal successors, (2871), 11 states have internal predecessors, (2871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:27,367 INFO L175 Difference]: Start difference. First operand has 72 places, 79 transitions, 849 flow. Second operand 10 states and 1139 transitions. [2022-11-25 17:00:27,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 160 transitions, 1774 flow [2022-11-25 17:00:27,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 160 transitions, 1766 flow, removed 4 selfloop flow, removed 3 redundant places. [2022-11-25 17:00:27,424 INFO L231 Difference]: Finished difference. Result has 80 places, 48 transitions, 470 flow [2022-11-25 17:00:27,425 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=470, PETRI_PLACES=80, PETRI_TRANSITIONS=48} [2022-11-25 17:00:27,426 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 39 predicate places. [2022-11-25 17:00:27,427 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 48 transitions, 470 flow [2022-11-25 17:00:27,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 107.75) internal successors, (862), 8 states have internal predecessors, (862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:27,427 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:27,428 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] [2022-11-25 17:00:27,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 17:00:27,428 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:27,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:27,429 INFO L85 PathProgramCache]: Analyzing trace with hash 41468799, now seen corresponding path program 4 times [2022-11-25 17:00:27,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:27,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385832848] [2022-11-25 17:00:27,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:27,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:27,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:27,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:27,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:27,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385832848] [2022-11-25 17:00:27,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385832848] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:27,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:27,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:00:27,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503038968] [2022-11-25 17:00:27,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:27,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:00:27,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:27,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:00:27,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:00:28,009 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 261 [2022-11-25 17:00:28,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 48 transitions, 470 flow. Second operand has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:28,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:28,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 261 [2022-11-25 17:00:28,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:28,392 INFO L130 PetriNetUnfolder]: 273/610 cut-off events. [2022-11-25 17:00:28,392 INFO L131 PetriNetUnfolder]: For 4894/4894 co-relation queries the response was YES. [2022-11-25 17:00:28,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3317 conditions, 610 events. 273/610 cut-off events. For 4894/4894 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3128 event pairs, 40 based on Foata normal form. 2/612 useless extension candidates. Maximal degree in co-relation 3292. Up to 166 conditions per place. [2022-11-25 17:00:28,397 INFO L137 encePairwiseOnDemand]: 250/261 looper letters, 31 selfloop transitions, 12 changer transitions 51/94 dead transitions. [2022-11-25 17:00:28,397 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 94 transitions, 968 flow [2022-11-25 17:00:28,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:00:28,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 17:00:28,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 906 transitions. [2022-11-25 17:00:28,401 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4339080459770115 [2022-11-25 17:00:28,401 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 906 transitions. [2022-11-25 17:00:28,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 906 transitions. [2022-11-25 17:00:28,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:28,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 906 transitions. [2022-11-25 17:00:28,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 113.25) internal successors, (906), 8 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) [2022-11-25 17:00:28,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 261.0) internal successors, (2349), 9 states have internal predecessors, (2349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:28,410 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 261.0) internal successors, (2349), 9 states have internal predecessors, (2349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:28,410 INFO L175 Difference]: Start difference. First operand has 80 places, 48 transitions, 470 flow. Second operand 8 states and 906 transitions. [2022-11-25 17:00:28,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 94 transitions, 968 flow [2022-11-25 17:00:28,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 94 transitions, 786 flow, removed 15 selfloop flow, removed 17 redundant places. [2022-11-25 17:00:28,424 INFO L231 Difference]: Finished difference. Result has 68 places, 38 transitions, 277 flow [2022-11-25 17:00:28,424 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=277, PETRI_PLACES=68, PETRI_TRANSITIONS=38} [2022-11-25 17:00:28,425 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 27 predicate places. [2022-11-25 17:00:28,425 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 38 transitions, 277 flow [2022-11-25 17:00:28,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.66666666666667) internal successors, (652), 6 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:28,426 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:28,426 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] [2022-11-25 17:00:28,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 17:00:28,426 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:28,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:28,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1296064471, now seen corresponding path program 5 times [2022-11-25 17:00:28,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:28,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435825239] [2022-11-25 17:00:28,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:28,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:28,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:28,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:28,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:28,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435825239] [2022-11-25 17:00:28,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435825239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:28,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:28,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:00:28,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664479719] [2022-11-25 17:00:28,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:28,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:00:28,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:28,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:00:28,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:00:28,621 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 261 [2022-11-25 17:00:28,622 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 38 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 121.25) internal successors, (485), 4 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:28,622 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:28,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 261 [2022-11-25 17:00:28,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:28,749 INFO L130 PetriNetUnfolder]: 71/214 cut-off events. [2022-11-25 17:00:28,749 INFO L131 PetriNetUnfolder]: For 598/598 co-relation queries the response was YES. [2022-11-25 17:00:28,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 982 conditions, 214 events. 71/214 cut-off events. For 598/598 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 877 event pairs, 32 based on Foata normal form. 2/216 useless extension candidates. Maximal degree in co-relation 963. Up to 123 conditions per place. [2022-11-25 17:00:28,751 INFO L137 encePairwiseOnDemand]: 257/261 looper letters, 26 selfloop transitions, 2 changer transitions 23/52 dead transitions. [2022-11-25 17:00:28,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 52 transitions, 457 flow [2022-11-25 17:00:28,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:00:28,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:00:28,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 496 transitions. [2022-11-25 17:00:28,753 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47509578544061304 [2022-11-25 17:00:28,754 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 496 transitions. [2022-11-25 17:00:28,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 496 transitions. [2022-11-25 17:00:28,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:28,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 496 transitions. [2022-11-25 17:00:28,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:28,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 261.0) internal successors, (1305), 5 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:28,759 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 261.0) internal successors, (1305), 5 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:28,759 INFO L175 Difference]: Start difference. First operand has 68 places, 38 transitions, 277 flow. Second operand 4 states and 496 transitions. [2022-11-25 17:00:28,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 52 transitions, 457 flow [2022-11-25 17:00:28,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 52 transitions, 386 flow, removed 8 selfloop flow, removed 13 redundant places. [2022-11-25 17:00:28,763 INFO L231 Difference]: Finished difference. Result has 57 places, 28 transitions, 157 flow [2022-11-25 17:00:28,763 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=157, PETRI_PLACES=57, PETRI_TRANSITIONS=28} [2022-11-25 17:00:28,765 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 16 predicate places. [2022-11-25 17:00:28,766 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 28 transitions, 157 flow [2022-11-25 17:00:28,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 121.25) internal successors, (485), 4 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:28,767 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:28,767 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] [2022-11-25 17:00:28,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 17:00:28,767 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:28,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:28,768 INFO L85 PathProgramCache]: Analyzing trace with hash 272828053, now seen corresponding path program 6 times [2022-11-25 17:00:28,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:28,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720911972] [2022-11-25 17:00:28,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:28,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:00:28,833 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:00:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:00:28,955 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:00:28,957 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:00:28,958 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-25 17:00:28,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2022-11-25 17:00:28,960 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-25 17:00:28,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-25 17:00:28,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-25 17:00:28,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-25 17:00:28,961 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-25 17:00:28,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-11-25 17:00:28,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-11-25 17:00:28,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-11-25 17:00:28,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-11-25 17:00:28,962 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-11-25 17:00:28,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-11-25 17:00:28,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 17:00:28,963 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:00:28,970 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 17:00:28,970 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:00:29,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:00:29 BasicIcfg [2022-11-25 17:00:29,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:00:29,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:00:29,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:00:29,070 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:00:29,071 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:00:05" (3/4) ... [2022-11-25 17:00:29,074 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:00:29,074 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:00:29,075 INFO L158 Benchmark]: Toolchain (without parser) took 25089.47ms. Allocated memory was 180.4MB in the beginning and 509.6MB in the end (delta: 329.3MB). Free memory was 150.1MB in the beginning and 459.6MB in the end (delta: -309.5MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-11-25 17:00:29,075 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 123.7MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:00:29,076 INFO L158 Benchmark]: CACSL2BoogieTranslator took 829.32ms. Allocated memory is still 180.4MB. Free memory was 150.1MB in the beginning and 135.9MB in the end (delta: 14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:00:29,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.49ms. Allocated memory is still 180.4MB. Free memory was 135.9MB in the beginning and 133.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:00:29,076 INFO L158 Benchmark]: Boogie Preprocessor took 74.24ms. Allocated memory is still 180.4MB. Free memory was 133.4MB in the beginning and 131.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:00:29,077 INFO L158 Benchmark]: RCFGBuilder took 850.92ms. Allocated memory is still 180.4MB. Free memory was 131.3MB in the beginning and 100.2MB in the end (delta: 31.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-25 17:00:29,077 INFO L158 Benchmark]: TraceAbstraction took 23232.46ms. Allocated memory was 180.4MB in the beginning and 509.6MB in the end (delta: 329.3MB). Free memory was 99.9MB in the beginning and 460.7MB in the end (delta: -360.8MB). Peak memory consumption was 261.7MB. Max. memory is 16.1GB. [2022-11-25 17:00:29,078 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 509.6MB. Free memory was 460.7MB in the beginning and 459.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:00:29,079 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 123.7MB. Free memory is still 96.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 829.32ms. Allocated memory is still 180.4MB. Free memory was 150.1MB in the beginning and 135.9MB in the end (delta: 14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.49ms. Allocated memory is still 180.4MB. Free memory was 135.9MB in the beginning and 133.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.24ms. Allocated memory is still 180.4MB. Free memory was 133.4MB in the beginning and 131.3MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 850.92ms. Allocated memory is still 180.4MB. Free memory was 131.3MB in the beginning and 100.2MB in the end (delta: 31.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 23232.46ms. Allocated memory was 180.4MB in the beginning and 509.6MB in the end (delta: 329.3MB). Free memory was 99.9MB in the beginning and 460.7MB in the end (delta: -360.8MB). Peak memory consumption was 261.7MB. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 509.6MB. Free memory was 460.7MB in the beginning and 459.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3s, 136 PlacesBefore, 41 PlacesAfterwards, 128 TransitionsBefore, 32 TransitionsAfterwards, 2464 CoEnabledTransitionPairs, 7 FixpointIterations, 54 TrivialSequentialCompositions, 66 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 130 TotalNumberOfCompositions, 5644 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3223, independent: 3058, independent conditional: 0, independent unconditional: 3058, dependent: 165, dependent conditional: 0, dependent unconditional: 165, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1807, independent: 1760, independent conditional: 0, independent unconditional: 1760, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1807, independent: 1743, independent conditional: 0, independent unconditional: 1743, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 64, independent: 17, independent conditional: 0, independent unconditional: 17, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 317, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 282, dependent conditional: 0, dependent unconditional: 282, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3223, independent: 1298, independent conditional: 0, independent unconditional: 1298, dependent: 118, dependent conditional: 0, dependent unconditional: 118, unknown: 1807, unknown conditional: 0, unknown unconditional: 1807] , Statistics on independence cache: Total cache size (in pairs): 185, Positive cache size: 165, Positive conditional cache size: 0, Positive unconditional cache size: 165, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, 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: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p1_EAX = 0; [L713] 0 int __unbuffered_p1_EBX = 0; [L715] 0 int __unbuffered_p2_EAX = 0; [L717] 0 int __unbuffered_p2_EBX = 0; [L719] 0 int a = 0; [L721] 0 int b = 0; [L722] 0 _Bool main$tmp_guard0; [L723] 0 _Bool main$tmp_guard1; [L725] 0 int x = 0; [L727] 0 int y = 0; [L729] 0 int z = 0; [L730] 0 _Bool z$flush_delayed; [L731] 0 int z$mem_tmp; [L732] 0 _Bool z$r_buff0_thd0; [L733] 0 _Bool z$r_buff0_thd1; [L734] 0 _Bool z$r_buff0_thd2; [L735] 0 _Bool z$r_buff0_thd3; [L736] 0 _Bool z$r_buff1_thd0; [L737] 0 _Bool z$r_buff1_thd1; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; [L740] 0 _Bool z$read_delayed; [L741] 0 int *z$read_delayed_var; [L742] 0 int z$w_buff0; [L743] 0 _Bool z$w_buff0_used; [L744] 0 int z$w_buff1; [L745] 0 _Bool z$w_buff1_used; [L746] 0 _Bool weak$$choice0; [L747] 0 _Bool weak$$choice2; [L843] 0 pthread_t t876; [L844] FCALL, FORK 0 pthread_create(&t876, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t876, ((void *)0), P0, ((void *)0))=-2, t876={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$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=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] [L845] 0 pthread_t t877; [L846] FCALL, FORK 0 pthread_create(&t877, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t877, ((void *)0), P1, ((void *)0))=-1, t876={5:0}, t877={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$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=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] [L847] 0 pthread_t t878; [L848] FCALL, FORK 0 pthread_create(&t878, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t878, ((void *)0), P2, ((void *)0))=0, t876={5:0}, t877={6:0}, t878={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$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=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] [L800] 3 z$w_buff1 = z$w_buff0 [L801] 3 z$w_buff0 = 1 [L802] 3 z$w_buff1_used = z$w_buff0_used [L803] 3 z$w_buff0_used = (_Bool)1 [L804] CALL 3 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L804] RET 3 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L805] 3 z$r_buff1_thd0 = z$r_buff0_thd0 [L806] 3 z$r_buff1_thd1 = z$r_buff0_thd1 [L807] 3 z$r_buff1_thd2 = z$r_buff0_thd2 [L808] 3 z$r_buff1_thd3 = z$r_buff0_thd3 [L809] 3 z$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$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=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=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] [L812] 3 a = 1 [L815] 3 __unbuffered_p2_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=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] [L818] 3 __unbuffered_p2_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=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] [L751] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=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] [L754] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=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_cnt = __unbuffered_cnt + 1 [L761] 1 return 0; [L766] 2 x = 2 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_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=2, 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=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=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] [L769] 2 y = 1 [L772] 2 __unbuffered_p1_EAX = y VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_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=2, 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=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=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] [L775] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L776] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L777] 2 z$flush_delayed = weak$$choice2 [L778] 2 z$mem_tmp = z [L779] 2 z = !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L780] 2 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L781] 2 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L782] 2 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L783] 2 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L784] 2 z$r_buff0_thd2 = weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L785] 2 z$r_buff1_thd2 = weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L786] 2 __unbuffered_p1_EBX = z [L787] 2 z = z$flush_delayed ? z$mem_tmp : z [L788] 2 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L821] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L822] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L823] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L824] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L825] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L793] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L795] 2 return 0; [L828] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L830] 3 return 0; [L850] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L852] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L852] RET 0 assume_abort_if_not(main$tmp_guard0) [L854] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L855] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L856] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L857] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L858] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t876={5:0}, t877={6:0}, t878={3:0}, weak$$choice0=49, weak$$choice2=0, x=2, y=1, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L861] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L863] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, 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=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=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: 841]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 848]: 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: 844]: 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: 846]: 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 7 procedures, 160 locations, 13 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: 23.0s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1039 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 817 mSDsluCounter, 509 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 403 mSDsCounter, 92 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2439 IncrementalHoareTripleChecker+Invalid, 2531 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 92 mSolverCounterUnsat, 106 mSDtfsCounter, 2439 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=849occurred in iteration=12, InterpolantAutomatonStates: 95, 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: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 244 NumberOfCodeBlocks, 244 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 207 ConstructedInterpolants, 0 QuantifiedInterpolants, 1934 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 [2022-11-25 17:00:29,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix033.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R --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 eb14ef07a6b26c4855460091e3932f356dd44c86cf5744c08658c1a06a447e8e --- 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-38b53e6 [2022-11-25 17:00:31,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:00:31,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:00:31,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:00:31,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:00:31,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:00:31,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:00:31,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:00:31,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:00:31,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:00:31,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:00:31,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:00:31,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:00:31,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:00:31,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:00:31,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:00:31,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:00:31,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:00:31,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:00:31,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:00:31,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:00:31,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:00:31,797 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:00:31,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:00:31,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:00:31,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:00:31,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:00:31,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:00:31,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:00:31,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:00:31,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:00:31,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:00:31,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:00:31,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:00:31,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:00:31,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:00:31,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:00:31,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:00:31,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:00:31,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:00:31,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:00:31,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-25 17:00:31,884 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:00:31,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:00:31,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:00:31,887 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:00:31,888 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:00:31,888 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:00:31,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:00:31,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:00:31,889 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:00:31,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:00:31,891 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:00:31,891 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:00:31,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:00:31,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:00:31,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:00:31,892 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 17:00:31,892 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 17:00:31,893 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 17:00:31,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:00:31,893 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:00:31,893 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:00:31,894 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:00:31,894 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:00:31,894 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:00:31,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:00:31,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:00:31,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:00:31,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:00:31,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:00:31,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:00:31,896 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:00:31,897 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:00:31,897 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:00:31,897 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:00:31,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:00:31,898 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:00:31,898 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_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R 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 -> eb14ef07a6b26c4855460091e3932f356dd44c86cf5744c08658c1a06a447e8e [2022-11-25 17:00:32,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:00:32,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:00:32,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:00:32,328 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:00:32,328 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:00:32,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread-wmm/mix033.opt.i [2022-11-25 17:00:35,698 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:00:35,956 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:00:35,956 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/sv-benchmarks/c/pthread-wmm/mix033.opt.i [2022-11-25 17:00:35,972 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/data/8c0be46b5/e3271f56b9da40e5b9b5cb16604c4019/FLAGfee3e6a87 [2022-11-25 17:00:35,991 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/data/8c0be46b5/e3271f56b9da40e5b9b5cb16604c4019 [2022-11-25 17:00:35,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:00:35,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:00:35,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:00:35,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:00:36,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:00:36,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:00:35" (1/1) ... [2022-11-25 17:00:36,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ab672cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:36, skipping insertion in model container [2022-11-25 17:00:36,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:00:35" (1/1) ... [2022-11-25 17:00:36,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:00:36,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:00:36,300 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_e94d15bc-9510-4d70-9b27-01ea8442636c/sv-benchmarks/c/pthread-wmm/mix033.opt.i[944,957] [2022-11-25 17:00:36,540 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,541 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,543 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,545 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,546 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,547 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,549 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,550 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,551 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,552 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,577 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,578 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,579 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,580 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,586 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,590 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,591 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,592 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,593 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,594 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,597 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,599 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,605 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,606 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,614 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,616 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,617 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,621 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,624 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,626 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:00:36,648 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:00:36,666 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_e94d15bc-9510-4d70-9b27-01ea8442636c/sv-benchmarks/c/pthread-wmm/mix033.opt.i[944,957] [2022-11-25 17:00:36,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,717 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,718 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,719 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,720 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,721 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,722 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,723 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,724 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,729 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,730 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,731 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,733 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,734 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,735 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,735 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,737 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,737 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,738 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 17:00:36,745 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 17:00:36,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:00:36,787 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:00:36,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:36 WrapperNode [2022-11-25 17:00:36,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:00:36,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:00:36,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:00:36,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:00:36,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:36" (1/1) ... [2022-11-25 17:00:36,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:36" (1/1) ... [2022-11-25 17:00:36,862 INFO L138 Inliner]: procedures = 179, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 139 [2022-11-25 17:00:36,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:00:36,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:00:36,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:00:36,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:00:36,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:36" (1/1) ... [2022-11-25 17:00:36,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:36" (1/1) ... [2022-11-25 17:00:36,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:36" (1/1) ... [2022-11-25 17:00:36,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:36" (1/1) ... [2022-11-25 17:00:36,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:36" (1/1) ... [2022-11-25 17:00:36,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:36" (1/1) ... [2022-11-25 17:00:36,929 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:36" (1/1) ... [2022-11-25 17:00:36,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:36" (1/1) ... [2022-11-25 17:00:36,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:00:36,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:00:36,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:00:36,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:00:36,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:36" (1/1) ... [2022-11-25 17:00:36,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:00:36,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:00:36,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:00:37,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:00:37,061 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 17:00:37,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:00:37,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:00:37,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:00:37,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 17:00:37,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 17:00:37,063 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-25 17:00:37,063 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-25 17:00:37,064 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-25 17:00:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-25 17:00:37,064 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-25 17:00:37,064 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-25 17:00:37,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 17:00:37,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:00:37,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:00:37,068 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:00:37,320 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:00:37,337 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:00:37,785 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:00:37,975 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:00:37,980 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:00:37,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:00:37 BoogieIcfgContainer [2022-11-25 17:00:37,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:00:37,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:00:37,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:00:37,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:00:37,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:00:35" (1/3) ... [2022-11-25 17:00:37,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c343b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:00:37, skipping insertion in model container [2022-11-25 17:00:37,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:36" (2/3) ... [2022-11-25 17:00:37,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c343b8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:00:37, skipping insertion in model container [2022-11-25 17:00:37,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:00:37" (3/3) ... [2022-11-25 17:00:37,997 INFO L112 eAbstractionObserver]: Analyzing ICFG mix033.opt.i [2022-11-25 17:00:38,019 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:00:38,019 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-25 17:00:38,019 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:00:38,094 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-25 17:00:38,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 132 transitions, 279 flow [2022-11-25 17:00:38,199 INFO L130 PetriNetUnfolder]: 2/129 cut-off events. [2022-11-25 17:00:38,199 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:00:38,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 129 events. 2/129 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2022-11-25 17:00:38,206 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 132 transitions, 279 flow [2022-11-25 17:00:38,211 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 129 transitions, 267 flow [2022-11-25 17:00:38,215 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:00:38,232 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 129 transitions, 267 flow [2022-11-25 17:00:38,235 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 129 transitions, 267 flow [2022-11-25 17:00:38,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 129 transitions, 267 flow [2022-11-25 17:00:38,284 INFO L130 PetriNetUnfolder]: 2/129 cut-off events. [2022-11-25 17:00:38,286 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:00:38,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139 conditions, 129 events. 2/129 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 87 event pairs, 0 based on Foata normal form. 0/118 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2022-11-25 17:00:38,289 INFO L119 LiptonReduction]: Number of co-enabled transitions 2464 [2022-11-25 17:00:48,730 INFO L134 LiptonReduction]: Checked pairs total: 5721 [2022-11-25 17:00:48,731 INFO L136 LiptonReduction]: Total number of compositions: 129 [2022-11-25 17:00:48,766 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:00:48,773 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;@3293c20a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:00:48,774 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-25 17:00:48,777 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-11-25 17:00:48,777 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:00:48,777 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:48,778 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-11-25 17:00:48,779 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:48,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:48,792 INFO L85 PathProgramCache]: Analyzing trace with hash 547, now seen corresponding path program 1 times [2022-11-25 17:00:48,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:00:48,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [122995707] [2022-11-25 17:00:48,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:48,811 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 [2022-11-25 17:00:48,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:00:48,831 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:00:48,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:48,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 17:00:48,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:00:48,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:48,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:00:48,977 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:00:48,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [122995707] [2022-11-25 17:00:48,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [122995707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:48,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:48,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-25 17:00:48,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590289372] [2022-11-25 17:00:48,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:48,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:00:48,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:00:49,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:00:49,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:00:49,020 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 261 [2022-11-25 17:00:49,023 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 32 transitions, 73 flow. Second operand has 2 states, 2 states have (on average 121.5) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:49,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:49,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 261 [2022-11-25 17:00:49,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:49,767 INFO L130 PetriNetUnfolder]: 1408/2121 cut-off events. [2022-11-25 17:00:49,768 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-25 17:00:49,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4239 conditions, 2121 events. 1408/2121 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 10064 event pairs, 1408 based on Foata normal form. 0/1820 useless extension candidates. Maximal degree in co-relation 4228. Up to 2076 conditions per place. [2022-11-25 17:00:49,792 INFO L137 encePairwiseOnDemand]: 254/261 looper letters, 23 selfloop transitions, 0 changer transitions 0/25 dead transitions. [2022-11-25 17:00:49,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 25 transitions, 105 flow [2022-11-25 17:00:49,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:00:49,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:00:49,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 272 transitions. [2022-11-25 17:00:49,820 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5210727969348659 [2022-11-25 17:00:49,821 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 272 transitions. [2022-11-25 17:00:49,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 272 transitions. [2022-11-25 17:00:49,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:49,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 272 transitions. [2022-11-25 17:00:49,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 136.0) internal successors, (272), 2 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:49,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:49,844 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:49,847 INFO L175 Difference]: Start difference. First operand has 41 places, 32 transitions, 73 flow. Second operand 2 states and 272 transitions. [2022-11-25 17:00:49,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 25 transitions, 105 flow [2022-11-25 17:00:49,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 25 transitions, 102 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 17:00:49,855 INFO L231 Difference]: Finished difference. Result has 33 places, 25 transitions, 56 flow [2022-11-25 17:00:49,859 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=56, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2022-11-25 17:00:49,863 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -8 predicate places. [2022-11-25 17:00:49,864 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 56 flow [2022-11-25 17:00:49,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 121.5) internal successors, (243), 2 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:49,864 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:49,864 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:00:49,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:50,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:50,085 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:50,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:50,086 INFO L85 PathProgramCache]: Analyzing trace with hash 2079734044, now seen corresponding path program 1 times [2022-11-25 17:00:50,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:00:50,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2040817938] [2022-11-25 17:00:50,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:50,088 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 [2022-11-25 17:00:50,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:00:50,090 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:00:50,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:50,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:00:50,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:00:50,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:50,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:00:50,270 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:00:50,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2040817938] [2022-11-25 17:00:50,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2040817938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:50,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:50,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:00:50,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104013472] [2022-11-25 17:00:50,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:50,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:00:50,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:00:50,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:00:50,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:00:50,278 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 261 [2022-11-25 17:00:50,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:50,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:50,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 261 [2022-11-25 17:00:50,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:50,624 INFO L130 PetriNetUnfolder]: 1164/1832 cut-off events. [2022-11-25 17:00:50,624 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:00:50,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3599 conditions, 1832 events. 1164/1832 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 9201 event pairs, 188 based on Foata normal form. 0/1681 useless extension candidates. Maximal degree in co-relation 3596. Up to 1397 conditions per place. [2022-11-25 17:00:50,636 INFO L137 encePairwiseOnDemand]: 258/261 looper letters, 30 selfloop transitions, 2 changer transitions 2/36 dead transitions. [2022-11-25 17:00:50,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 146 flow [2022-11-25 17:00:50,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:00:50,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:00:50,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2022-11-25 17:00:50,639 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5044699872286079 [2022-11-25 17:00:50,639 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2022-11-25 17:00:50,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2022-11-25 17:00:50,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:50,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2022-11-25 17:00:50,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:50,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 261.0) internal successors, (1044), 4 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:50,645 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 261.0) internal successors, (1044), 4 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:50,645 INFO L175 Difference]: Start difference. First operand has 33 places, 25 transitions, 56 flow. Second operand 3 states and 395 transitions. [2022-11-25 17:00:50,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 146 flow [2022-11-25 17:00:50,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 146 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:00:50,647 INFO L231 Difference]: Finished difference. Result has 34 places, 23 transitions, 56 flow [2022-11-25 17:00:50,647 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=34, PETRI_TRANSITIONS=23} [2022-11-25 17:00:50,648 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -7 predicate places. [2022-11-25 17:00:50,648 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 23 transitions, 56 flow [2022-11-25 17:00:50,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:50,649 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:50,649 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:00:50,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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)] Forceful destruction successful, exit code 0 [2022-11-25 17:00:50,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:50,859 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:50,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:50,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1838917092, now seen corresponding path program 1 times [2022-11-25 17:00:50,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:00:50,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1597163302] [2022-11-25 17:00:50,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:50,860 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 [2022-11-25 17:00:50,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:00:50,862 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:00:50,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:51,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:00:51,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:00:51,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:51,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:00:51,103 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:00:51,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1597163302] [2022-11-25 17:00:51,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1597163302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:51,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:51,107 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:00:51,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375152592] [2022-11-25 17:00:51,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:51,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:00:51,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:00:51,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:00:51,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:00:51,134 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 261 [2022-11-25 17:00:51,139 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 23 transitions, 56 flow. Second operand has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:51,139 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:51,139 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 261 [2022-11-25 17:00:51,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:51,434 INFO L130 PetriNetUnfolder]: 641/1060 cut-off events. [2022-11-25 17:00:51,434 INFO L131 PetriNetUnfolder]: For 59/59 co-relation queries the response was YES. [2022-11-25 17:00:51,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2211 conditions, 1060 events. 641/1060 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4904 event pairs, 121 based on Foata normal form. 75/1091 useless extension candidates. Maximal degree in co-relation 2207. Up to 586 conditions per place. [2022-11-25 17:00:51,441 INFO L137 encePairwiseOnDemand]: 255/261 looper letters, 40 selfloop transitions, 5 changer transitions 1/48 dead transitions. [2022-11-25 17:00:51,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 48 transitions, 206 flow [2022-11-25 17:00:51,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:00:51,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:00:51,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2022-11-25 17:00:51,445 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48659003831417624 [2022-11-25 17:00:51,445 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 508 transitions. [2022-11-25 17:00:51,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 508 transitions. [2022-11-25 17:00:51,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:51,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 508 transitions. [2022-11-25 17:00:51,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:51,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 261.0) internal successors, (1305), 5 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:51,451 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 261.0) internal successors, (1305), 5 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:51,451 INFO L175 Difference]: Start difference. First operand has 34 places, 23 transitions, 56 flow. Second operand 4 states and 508 transitions. [2022-11-25 17:00:51,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 48 transitions, 206 flow [2022-11-25 17:00:51,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 48 transitions, 198 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:00:51,455 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 86 flow [2022-11-25 17:00:51,455 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=86, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2022-11-25 17:00:51,458 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -5 predicate places. [2022-11-25 17:00:51,459 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 86 flow [2022-11-25 17:00:51,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:51,459 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:51,460 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:00:51,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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)] Forceful destruction successful, exit code 0 [2022-11-25 17:00:51,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:51,673 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:51,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:51,674 INFO L85 PathProgramCache]: Analyzing trace with hash -405041397, now seen corresponding path program 1 times [2022-11-25 17:00:51,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:00:51,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535559463] [2022-11-25 17:00:51,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:51,675 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 [2022-11-25 17:00:51,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:00:51,676 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:00:51,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:51,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:51,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:00:51,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:00:51,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:51,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:00:51,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:00:51,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535559463] [2022-11-25 17:00:51,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535559463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:51,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:51,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:00:51,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481306622] [2022-11-25 17:00:51,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:51,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:00:51,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:00:51,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:00:51,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:00:51,875 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 261 [2022-11-25 17:00:51,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 86 flow. Second operand has 5 states, 5 states have (on average 117.4) internal successors, (587), 5 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:51,877 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:51,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 261 [2022-11-25 17:00:51,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:52,145 INFO L130 PetriNetUnfolder]: 257/476 cut-off events. [2022-11-25 17:00:52,145 INFO L131 PetriNetUnfolder]: For 164/164 co-relation queries the response was YES. [2022-11-25 17:00:52,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1253 conditions, 476 events. 257/476 cut-off events. For 164/164 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1893 event pairs, 55 based on Foata normal form. 43/507 useless extension candidates. Maximal degree in co-relation 1247. Up to 188 conditions per place. [2022-11-25 17:00:52,149 INFO L137 encePairwiseOnDemand]: 255/261 looper letters, 49 selfloop transitions, 8 changer transitions 1/60 dead transitions. [2022-11-25 17:00:52,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 60 transitions, 291 flow [2022-11-25 17:00:52,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:00:52,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:00:52,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 635 transitions. [2022-11-25 17:00:52,152 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48659003831417624 [2022-11-25 17:00:52,152 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 635 transitions. [2022-11-25 17:00:52,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 635 transitions. [2022-11-25 17:00:52,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:52,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 635 transitions. [2022-11-25 17:00:52,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 127.0) internal successors, (635), 5 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:52,157 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 261.0) internal successors, (1566), 6 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:52,158 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 261.0) internal successors, (1566), 6 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:52,159 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 86 flow. Second operand 5 states and 635 transitions. [2022-11-25 17:00:52,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 60 transitions, 291 flow [2022-11-25 17:00:52,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 60 transitions, 281 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-25 17:00:52,162 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 126 flow [2022-11-25 17:00:52,162 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=126, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2022-11-25 17:00:52,163 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2022-11-25 17:00:52,163 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 126 flow [2022-11-25 17:00:52,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 117.4) internal successors, (587), 5 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:52,164 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:52,164 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:00:52,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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)] Forceful destruction successful, exit code 0 [2022-11-25 17:00:52,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:52,377 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:52,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:52,378 INFO L85 PathProgramCache]: Analyzing trace with hash 825452330, now seen corresponding path program 1 times [2022-11-25 17:00:52,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:00:52,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141225545] [2022-11-25 17:00:52,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:52,379 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 [2022-11-25 17:00:52,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:00:52,380 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:00:52,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:52,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:00:52,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:00:52,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:52,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:00:52,603 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:00:52,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141225545] [2022-11-25 17:00:52,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141225545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:52,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:52,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:00:52,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469754298] [2022-11-25 17:00:52,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:52,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:00:52,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:00:52,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:00:52,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:00:52,636 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 261 [2022-11-25 17:00:52,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 126 flow. Second operand has 6 states, 6 states have (on average 117.66666666666667) internal successors, (706), 6 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:52,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:52,638 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 261 [2022-11-25 17:00:52,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:52,927 INFO L130 PetriNetUnfolder]: 153/290 cut-off events. [2022-11-25 17:00:52,927 INFO L131 PetriNetUnfolder]: For 292/292 co-relation queries the response was YES. [2022-11-25 17:00:52,928 INFO L83 FinitePrefix]: Finished finitePrefix Result has 865 conditions, 290 events. 153/290 cut-off events. For 292/292 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1000 event pairs, 55 based on Foata normal form. 11/299 useless extension candidates. Maximal degree in co-relation 858. Up to 112 conditions per place. [2022-11-25 17:00:52,930 INFO L137 encePairwiseOnDemand]: 255/261 looper letters, 36 selfloop transitions, 11 changer transitions 1/50 dead transitions. [2022-11-25 17:00:52,930 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 50 transitions, 274 flow [2022-11-25 17:00:52,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:00:52,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 17:00:52,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 740 transitions. [2022-11-25 17:00:52,933 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4725415070242657 [2022-11-25 17:00:52,933 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 740 transitions. [2022-11-25 17:00:52,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 740 transitions. [2022-11-25 17:00:52,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:52,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 740 transitions. [2022-11-25 17:00:52,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 123.33333333333333) internal successors, (740), 6 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) [2022-11-25 17:00:52,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:52,941 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 261.0) internal successors, (1827), 7 states have internal predecessors, (1827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:52,941 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 126 flow. Second operand 6 states and 740 transitions. [2022-11-25 17:00:52,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 50 transitions, 274 flow [2022-11-25 17:00:52,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 50 transitions, 249 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-11-25 17:00:52,945 INFO L231 Difference]: Finished difference. Result has 43 places, 29 transitions, 140 flow [2022-11-25 17:00:52,945 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=140, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2022-11-25 17:00:52,946 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 2 predicate places. [2022-11-25 17:00:52,947 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 29 transitions, 140 flow [2022-11-25 17:00:52,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.66666666666667) internal successors, (706), 6 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:52,947 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:52,948 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] [2022-11-25 17:00:52,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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)] Forceful destruction successful, exit code 0 [2022-11-25 17:00:53,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:53,167 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:53,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:53,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1145284016, now seen corresponding path program 1 times [2022-11-25 17:00:53,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:00:53,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848987831] [2022-11-25 17:00:53,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:53,168 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 [2022-11-25 17:00:53,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:00:53,170 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:00:53,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:53,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 17:00:53,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:00:53,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:53,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:00:53,423 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:00:53,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848987831] [2022-11-25 17:00:53,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848987831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:53,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:53,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:00:53,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576620720] [2022-11-25 17:00:53,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:53,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:00:53,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:00:53,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:00:53,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:00:53,446 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 261 [2022-11-25 17:00:53,448 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 29 transitions, 140 flow. Second operand has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:53,448 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:53,448 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 261 [2022-11-25 17:00:53,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:53,721 INFO L130 PetriNetUnfolder]: 195/402 cut-off events. [2022-11-25 17:00:53,721 INFO L131 PetriNetUnfolder]: For 529/529 co-relation queries the response was YES. [2022-11-25 17:00:53,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1165 conditions, 402 events. 195/402 cut-off events. For 529/529 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1746 event pairs, 27 based on Foata normal form. 0/401 useless extension candidates. Maximal degree in co-relation 1157. Up to 217 conditions per place. [2022-11-25 17:00:53,725 INFO L137 encePairwiseOnDemand]: 257/261 looper letters, 57 selfloop transitions, 3 changer transitions 0/61 dead transitions. [2022-11-25 17:00:53,725 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 61 transitions, 424 flow [2022-11-25 17:00:53,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:00:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:00:53,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 627 transitions. [2022-11-25 17:00:53,728 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4804597701149425 [2022-11-25 17:00:53,728 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 627 transitions. [2022-11-25 17:00:53,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 627 transitions. [2022-11-25 17:00:53,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:53,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 627 transitions. [2022-11-25 17:00:53,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:53,733 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 261.0) internal successors, (1566), 6 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:53,734 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 261.0) internal successors, (1566), 6 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:53,734 INFO L175 Difference]: Start difference. First operand has 43 places, 29 transitions, 140 flow. Second operand 5 states and 627 transitions. [2022-11-25 17:00:53,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 61 transitions, 424 flow [2022-11-25 17:00:53,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 61 transitions, 295 flow, removed 20 selfloop flow, removed 9 redundant places. [2022-11-25 17:00:53,739 INFO L231 Difference]: Finished difference. Result has 41 places, 31 transitions, 103 flow [2022-11-25 17:00:53,739 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=103, PETRI_PLACES=41, PETRI_TRANSITIONS=31} [2022-11-25 17:00:53,740 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 0 predicate places. [2022-11-25 17:00:53,740 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 31 transitions, 103 flow [2022-11-25 17:00:53,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 120.2) internal successors, (601), 5 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:53,741 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:53,741 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] [2022-11-25 17:00:53,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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)] Forceful destruction successful, exit code 0 [2022-11-25 17:00:53,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:53,955 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:53,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:53,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1002730782, now seen corresponding path program 2 times [2022-11-25 17:00:53,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:00:53,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041199594] [2022-11-25 17:00:53,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:00:53,957 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 [2022-11-25 17:00:53,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:00:53,959 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:00:53,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:54,114 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 17:00:54,114 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:00:54,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 17:00:54,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:00:54,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:54,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:00:54,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:00:54,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041199594] [2022-11-25 17:00:54,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041199594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:54,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:54,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:00:54,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62964376] [2022-11-25 17:00:54,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:54,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:00:54,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:00:54,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:00:54,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:00:54,175 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 261 [2022-11-25 17:00:54,176 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 31 transitions, 103 flow. Second operand has 4 states, 4 states have (on average 122.25) internal successors, (489), 4 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:54,176 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:54,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 261 [2022-11-25 17:00:54,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:54,421 INFO L130 PetriNetUnfolder]: 344/652 cut-off events. [2022-11-25 17:00:54,422 INFO L131 PetriNetUnfolder]: For 201/201 co-relation queries the response was YES. [2022-11-25 17:00:54,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1611 conditions, 652 events. 344/652 cut-off events. For 201/201 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 3011 event pairs, 147 based on Foata normal form. 1/653 useless extension candidates. Maximal degree in co-relation 1604. Up to 380 conditions per place. [2022-11-25 17:00:54,426 INFO L137 encePairwiseOnDemand]: 257/261 looper letters, 49 selfloop transitions, 4 changer transitions 0/55 dead transitions. [2022-11-25 17:00:54,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 55 transitions, 284 flow [2022-11-25 17:00:54,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:00:54,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-11-25 17:00:54,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2022-11-25 17:00:54,429 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48659003831417624 [2022-11-25 17:00:54,429 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 508 transitions. [2022-11-25 17:00:54,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 508 transitions. [2022-11-25 17:00:54,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:54,430 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 508 transitions. [2022-11-25 17:00:54,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:54,433 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 261.0) internal successors, (1305), 5 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:54,434 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 261.0) internal successors, (1305), 5 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:54,434 INFO L175 Difference]: Start difference. First operand has 41 places, 31 transitions, 103 flow. Second operand 4 states and 508 transitions. [2022-11-25 17:00:54,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 55 transitions, 284 flow [2022-11-25 17:00:54,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 55 transitions, 283 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:00:54,436 INFO L231 Difference]: Finished difference. Result has 45 places, 34 transitions, 136 flow [2022-11-25 17:00:54,437 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=45, PETRI_TRANSITIONS=34} [2022-11-25 17:00:54,437 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2022-11-25 17:00:54,437 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 34 transitions, 136 flow [2022-11-25 17:00:54,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 122.25) internal successors, (489), 4 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:54,438 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:54,438 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] [2022-11-25 17:00:54,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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)] Forceful destruction successful, exit code 0 [2022-11-25 17:00:54,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:54,653 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:54,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:54,653 INFO L85 PathProgramCache]: Analyzing trace with hash 626590644, now seen corresponding path program 1 times [2022-11-25 17:00:54,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:00:54,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589686552] [2022-11-25 17:00:54,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:54,654 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 [2022-11-25 17:00:54,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:00:54,656 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:00:54,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:54,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-25 17:00:54,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:00:55,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:55,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:00:55,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:00:55,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589686552] [2022-11-25 17:00:55,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589686552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:55,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:55,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:00:55,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572938998] [2022-11-25 17:00:55,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:55,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:00:55,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:00:55,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:00:55,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:00:55,650 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 261 [2022-11-25 17:00:55,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 34 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:55,651 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:00:55,651 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 261 [2022-11-25 17:00:55,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:00:55,975 INFO L130 PetriNetUnfolder]: 272/537 cut-off events. [2022-11-25 17:00:55,976 INFO L131 PetriNetUnfolder]: For 215/215 co-relation queries the response was YES. [2022-11-25 17:00:55,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1426 conditions, 537 events. 272/537 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2498 event pairs, 41 based on Foata normal form. 4/541 useless extension candidates. Maximal degree in co-relation 1417. Up to 462 conditions per place. [2022-11-25 17:00:55,978 INFO L137 encePairwiseOnDemand]: 257/261 looper letters, 23 selfloop transitions, 3 changer transitions 16/44 dead transitions. [2022-11-25 17:00:55,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 44 transitions, 257 flow [2022-11-25 17:00:55,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:00:55,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 17:00:55,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 554 transitions. [2022-11-25 17:00:55,982 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42452107279693485 [2022-11-25 17:00:55,982 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 554 transitions. [2022-11-25 17:00:55,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 554 transitions. [2022-11-25 17:00:55,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:00:55,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 554 transitions. [2022-11-25 17:00:55,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 110.8) internal successors, (554), 5 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) [2022-11-25 17:00:55,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 261.0) internal successors, (1566), 6 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:55,988 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 261.0) internal successors, (1566), 6 states have internal predecessors, (1566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:55,988 INFO L175 Difference]: Start difference. First operand has 45 places, 34 transitions, 136 flow. Second operand 5 states and 554 transitions. [2022-11-25 17:00:55,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 44 transitions, 257 flow [2022-11-25 17:00:55,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 44 transitions, 254 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:00:55,991 INFO L231 Difference]: Finished difference. Result has 47 places, 28 transitions, 102 flow [2022-11-25 17:00:55,991 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=102, PETRI_PLACES=47, PETRI_TRANSITIONS=28} [2022-11-25 17:00:55,992 INFO L288 CegarLoopForPetriNet]: 41 programPoint places, 6 predicate places. [2022-11-25 17:00:55,992 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 28 transitions, 102 flow [2022-11-25 17:00:55,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:55,992 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:00:55,993 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] [2022-11-25 17:00:56,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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)] Forceful destruction successful, exit code 0 [2022-11-25 17:00:56,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:56,207 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-25 17:00:56,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:56,208 INFO L85 PathProgramCache]: Analyzing trace with hash -578663590, now seen corresponding path program 3 times [2022-11-25 17:00:56,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:00:56,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920235119] [2022-11-25 17:00:56,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:00:56,209 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 [2022-11-25 17:00:56,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:00:56,210 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:00:56,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:56,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 17:00:56,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-25 17:00:56,370 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:00:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:00:56,546 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 17:00:56,546 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:00:56,547 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-25 17:00:56,549 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2022-11-25 17:00:56,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-25 17:00:56,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-25 17:00:56,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-25 17:00:56,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-25 17:00:56,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-25 17:00:56,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-11-25 17:00:56,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-11-25 17:00:56,551 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-11-25 17:00:56,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-11-25 17:00:56,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-11-25 17:00:56,552 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-11-25 17:00:56,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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)] Forceful destruction successful, exit code 0 [2022-11-25 17:00:56,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:56,767 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2022-11-25 17:00:56,772 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 17:00:56,772 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:00:56,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:00:56 BasicIcfg [2022-11-25 17:00:56,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:00:56,886 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:00:56,886 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:00:56,886 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:00:56,887 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:00:37" (3/4) ... [2022-11-25 17:00:56,890 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:00:56,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:00:56,891 INFO L158 Benchmark]: Toolchain (without parser) took 20895.29ms. Allocated memory was 77.6MB in the beginning and 136.3MB in the end (delta: 58.7MB). Free memory was 48.4MB in the beginning and 43.0MB in the end (delta: 5.4MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-25 17:00:56,891 INFO L158 Benchmark]: CDTParser took 0.79ms. Allocated memory is still 52.4MB. Free memory was 29.7MB in the beginning and 29.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:00:56,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 791.53ms. Allocated memory is still 77.6MB. Free memory was 48.2MB in the beginning and 41.8MB in the end (delta: 6.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 17:00:56,896 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.49ms. Allocated memory is still 77.6MB. Free memory was 41.8MB in the beginning and 39.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:00:56,896 INFO L158 Benchmark]: Boogie Preprocessor took 76.78ms. Allocated memory is still 77.6MB. Free memory was 39.3MB in the beginning and 37.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:00:56,899 INFO L158 Benchmark]: RCFGBuilder took 1041.50ms. Allocated memory is still 77.6MB. Free memory was 37.2MB in the beginning and 50.9MB in the end (delta: -13.7MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2022-11-25 17:00:56,899 INFO L158 Benchmark]: TraceAbstraction took 18899.42ms. Allocated memory was 77.6MB in the beginning and 136.3MB in the end (delta: 58.7MB). Free memory was 50.2MB in the beginning and 44.0MB in the end (delta: 6.2MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2022-11-25 17:00:56,899 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 136.3MB. Free memory was 44.0MB in the beginning and 43.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:00:56,901 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79ms. Allocated memory is still 52.4MB. Free memory was 29.7MB in the beginning and 29.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 791.53ms. Allocated memory is still 77.6MB. Free memory was 48.2MB in the beginning and 41.8MB in the end (delta: 6.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.49ms. Allocated memory is still 77.6MB. Free memory was 41.8MB in the beginning and 39.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.78ms. Allocated memory is still 77.6MB. Free memory was 39.3MB in the beginning and 37.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1041.50ms. Allocated memory is still 77.6MB. Free memory was 37.2MB in the beginning and 50.9MB in the end (delta: -13.7MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * TraceAbstraction took 18899.42ms. Allocated memory was 77.6MB in the beginning and 136.3MB in the end (delta: 58.7MB). Free memory was 50.2MB in the beginning and 44.0MB in the end (delta: 6.2MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 136.3MB. Free memory was 44.0MB in the beginning and 43.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.5s, 137 PlacesBefore, 41 PlacesAfterwards, 129 TransitionsBefore, 32 TransitionsAfterwards, 2464 CoEnabledTransitionPairs, 7 FixpointIterations, 53 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 129 TotalNumberOfCompositions, 5721 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3310, independent: 3146, independent conditional: 0, independent unconditional: 3146, dependent: 164, dependent conditional: 0, dependent unconditional: 164, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1825, independent: 1779, independent conditional: 0, independent unconditional: 1779, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1825, independent: 1763, independent conditional: 0, independent unconditional: 1763, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 62, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 381, independent: 40, independent conditional: 0, independent unconditional: 40, dependent: 341, dependent conditional: 0, dependent unconditional: 341, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3310, independent: 1367, independent conditional: 0, independent unconditional: 1367, dependent: 118, dependent conditional: 0, dependent unconditional: 118, unknown: 1825, unknown conditional: 0, unknown unconditional: 1825] , Statistics on independence cache: Total cache size (in pairs): 202, Positive cache size: 182, Positive conditional cache size: 0, Positive unconditional cache size: 182, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, 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: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p1_EAX = 0; [L713] 0 int __unbuffered_p1_EBX = 0; [L715] 0 int __unbuffered_p2_EAX = 0; [L717] 0 int __unbuffered_p2_EBX = 0; [L719] 0 int a = 0; [L721] 0 int b = 0; [L722] 0 _Bool main$tmp_guard0; [L723] 0 _Bool main$tmp_guard1; [L725] 0 int x = 0; [L727] 0 int y = 0; [L729] 0 int z = 0; [L730] 0 _Bool z$flush_delayed; [L731] 0 int z$mem_tmp; [L732] 0 _Bool z$r_buff0_thd0; [L733] 0 _Bool z$r_buff0_thd1; [L734] 0 _Bool z$r_buff0_thd2; [L735] 0 _Bool z$r_buff0_thd3; [L736] 0 _Bool z$r_buff1_thd0; [L737] 0 _Bool z$r_buff1_thd1; [L738] 0 _Bool z$r_buff1_thd2; [L739] 0 _Bool z$r_buff1_thd3; [L740] 0 _Bool z$read_delayed; [L741] 0 int *z$read_delayed_var; [L742] 0 int z$w_buff0; [L743] 0 _Bool z$w_buff0_used; [L744] 0 int z$w_buff1; [L745] 0 _Bool z$w_buff1_used; [L746] 0 _Bool weak$$choice0; [L747] 0 _Bool weak$$choice2; [L843] 0 pthread_t t876; [L844] FCALL, FORK 0 pthread_create(&t876, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t876, ((void *)0), P0, ((void *)0))=-1, t876={-6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L845] 0 pthread_t t877; [L846] FCALL, FORK 0 pthread_create(&t877, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t877, ((void *)0), P1, ((void *)0))=0, t876={-6:0}, t877={-10:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L847] 0 pthread_t t878; [L848] FCALL, FORK 0 pthread_create(&t878, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t878, ((void *)0), P2, ((void *)0))=1, t876={-6:0}, t877={-10:0}, t878={-2:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L800] 3 z$w_buff1 = z$w_buff0 [L801] 3 z$w_buff0 = 1 [L802] 3 z$w_buff1_used = z$w_buff0_used [L803] 3 z$w_buff0_used = (_Bool)1 [L804] CALL 3 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L804] RET 3 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L805] 3 z$r_buff1_thd0 = z$r_buff0_thd0 [L806] 3 z$r_buff1_thd1 = z$r_buff0_thd1 [L807] 3 z$r_buff1_thd2 = z$r_buff0_thd2 [L808] 3 z$r_buff1_thd3 = z$r_buff0_thd3 [L809] 3 z$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L812] 3 a = 1 [L815] 3 __unbuffered_p2_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L818] 3 __unbuffered_p2_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L751] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L754] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L766] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L759] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L761] 1 return 0; [L769] 2 y = 1 [L772] 2 __unbuffered_p1_EAX = y VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L775] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L776] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L777] 2 z$flush_delayed = weak$$choice2 [L778] 2 z$mem_tmp = z [L779] 2 z = !z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff1) [L780] 2 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : z$w_buff0)) [L781] 2 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff1 : z$w_buff1)) [L782] 2 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used)) [L783] 2 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L784] 2 z$r_buff0_thd2 = weak$$choice2 ? z$r_buff0_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff0_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2)) [L785] 2 z$r_buff1_thd2 = weak$$choice2 ? z$r_buff1_thd2 : (!z$w_buff0_used || !z$r_buff0_thd2 && !z$w_buff1_used || !z$r_buff0_thd2 && !z$r_buff1_thd2 ? z$r_buff1_thd2 : (z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L786] 2 __unbuffered_p1_EBX = z [L787] 2 z = z$flush_delayed ? z$mem_tmp : z [L788] 2 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_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$$choice0=2, weak$$choice2=0, x=2, 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=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=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] [L821] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L822] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L823] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L824] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L825] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_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=2, 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=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=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] [L793] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L795] 2 return 0; [L828] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L830] 3 return 0; [L850] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L852] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L852] RET 0 assume_abort_if_not(main$tmp_guard0) [L854] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L855] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L856] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L857] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L858] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t876={-6:0}, t877={-10:0}, t878={-2:0}, weak$$choice0=2, weak$$choice2=0, x=2, 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=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=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] [L861] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L863] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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=2, 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=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=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: 841]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 848]: 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: 844]: 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: 846]: 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 7 procedures, 161 locations, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 18.6s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 340 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 279 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 819 IncrementalHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 18 mSDtfsCounter, 819 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=140occurred in iteration=5, InterpolantAutomatonStates: 34, 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, 0.5s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 106 ConstructedInterpolants, 16 QuantifiedInterpolants, 912 SizeOfPredicates, 17 NumberOfNonLiveVariables, 972 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 [2022-11-25 17:00:56,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e94d15bc-9510-4d70-9b27-01ea8442636c/bin/uautomizer-ZsLfNo2U6R/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