./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/mix039.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix039.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4df22382a468f75ea1bc6624bacd8789c0b9b9f8aa1bc2866cf2715dcbc507bc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 13:58:14,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:58:14,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:58:14,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:58:14,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:58:14,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:58:14,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:58:14,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:58:14,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:58:14,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:58:14,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:58:14,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:58:14,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:58:14,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:58:14,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:58:14,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:58:14,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:58:14,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:58:14,643 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:58:14,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:58:14,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:58:14,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:58:14,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:58:14,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:58:14,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:58:14,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:58:14,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:58:14,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:58:14,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:58:14,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:58:14,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:58:14,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:58:14,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:58:14,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:58:14,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:58:14,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:58:14,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:58:14,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:58:14,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:58:14,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:58:14,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:58:14,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 13:58:14,677 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:58:14,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:58:14,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:58:14,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:58:14,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:58:14,678 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:58:14,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:58:14,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:58:14,679 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:58:14,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:58:14,679 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:58:14,680 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:58:14,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:58:14,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:58:14,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:58:14,680 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 13:58:14,680 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 13:58:14,680 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 13:58:14,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:58:14,681 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 13:58:14,681 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:58:14,681 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:58:14,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:58:14,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:58:14,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:58:14,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:58:14,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:58:14,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:58:14,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:58:14,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:58:14,682 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:58:14,682 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:58:14,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:58:14,682 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:58:14,682 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_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4df22382a468f75ea1bc6624bacd8789c0b9b9f8aa1bc2866cf2715dcbc507bc [2022-12-13 13:58:14,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:58:14,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:58:14,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:58:14,863 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:58:14,863 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:58:14,864 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix039.opt.i [2022-12-13 13:58:17,425 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:58:17,586 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:58:17,586 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/sv-benchmarks/c/pthread-wmm/mix039.opt.i [2022-12-13 13:58:17,595 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/data/e52c42e04/f15e7214269242508ac06612871f279f/FLAGdb8ad18a1 [2022-12-13 13:58:17,606 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/data/e52c42e04/f15e7214269242508ac06612871f279f [2022-12-13 13:58:17,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:58:17,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:58:17,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:58:17,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:58:17,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:58:17,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:58:17" (1/1) ... [2022-12-13 13:58:17,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6467b299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:17, skipping insertion in model container [2022-12-13 13:58:17,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:58:17" (1/1) ... [2022-12-13 13:58:17,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:58:17,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:58:17,773 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_204b7683-eb9f-4b6c-a8e8-41ce16024b88/sv-benchmarks/c/pthread-wmm/mix039.opt.i[944,957] [2022-12-13 13:58:17,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,883 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,884 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,890 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,891 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,892 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,893 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,894 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,895 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,897 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,902 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:58:17,915 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:58:17,924 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_204b7683-eb9f-4b6c-a8e8-41ce16024b88/sv-benchmarks/c/pthread-wmm/mix039.opt.i[944,957] [2022-12-13 13:58:17,940 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,941 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,942 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,943 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,944 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,945 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,951 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,952 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,953 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,954 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,955 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,957 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,958 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,961 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,962 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,963 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:17,964 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:17,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:58:17,987 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:58:17,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:17 WrapperNode [2022-12-13 13:58:17,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:58:17,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:58:17,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:58:17,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:58:17,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:17" (1/1) ... [2022-12-13 13:58:18,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:17" (1/1) ... [2022-12-13 13:58:18,031 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 152 [2022-12-13 13:58:18,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:58:18,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:58:18,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:58:18,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:58:18,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:17" (1/1) ... [2022-12-13 13:58:18,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:17" (1/1) ... [2022-12-13 13:58:18,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:17" (1/1) ... [2022-12-13 13:58:18,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:17" (1/1) ... [2022-12-13 13:58:18,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:17" (1/1) ... [2022-12-13 13:58:18,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:17" (1/1) ... [2022-12-13 13:58:18,057 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:17" (1/1) ... [2022-12-13 13:58:18,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:17" (1/1) ... [2022-12-13 13:58:18,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:58:18,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:58:18,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:58:18,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:58:18,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:17" (1/1) ... [2022-12-13 13:58:18,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:58:18,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:58:18,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:58:18,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:58:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:58:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 13:58:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:58:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:58:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:58:18,142 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 13:58:18,142 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 13:58:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 13:58:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 13:58:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 13:58:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 13:58:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 13:58:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 13:58:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:58:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 13:58:18,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:58:18,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:58:18,145 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 13:58:18,252 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:58:18,254 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:58:18,509 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:58:18,606 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:58:18,606 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:58:18,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:58:18 BoogieIcfgContainer [2022-12-13 13:58:18,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:58:18,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:58:18,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:58:18,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:58:18,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:58:17" (1/3) ... [2022-12-13 13:58:18,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4f1671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:58:18, skipping insertion in model container [2022-12-13 13:58:18,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:17" (2/3) ... [2022-12-13 13:58:18,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4f1671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:58:18, skipping insertion in model container [2022-12-13 13:58:18,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:58:18" (3/3) ... [2022-12-13 13:58:18,614 INFO L112 eAbstractionObserver]: Analyzing ICFG mix039.opt.i [2022-12-13 13:58:18,628 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:58:18,628 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 13:58:18,628 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:58:18,680 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 13:58:18,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 149 transitions, 318 flow [2022-12-13 13:58:18,747 INFO L130 PetriNetUnfolder]: 2/145 cut-off events. [2022-12-13 13:58:18,748 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:58:18,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 2/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 95 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-13 13:58:18,752 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 149 transitions, 318 flow [2022-12-13 13:58:18,755 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 156 places, 145 transitions, 302 flow [2022-12-13 13:58:18,758 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:58:18,766 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 145 transitions, 302 flow [2022-12-13 13:58:18,768 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 145 transitions, 302 flow [2022-12-13 13:58:18,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 145 transitions, 302 flow [2022-12-13 13:58:18,792 INFO L130 PetriNetUnfolder]: 2/145 cut-off events. [2022-12-13 13:58:18,793 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:58:18,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 145 events. 2/145 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-13 13:58:18,795 INFO L119 LiptonReduction]: Number of co-enabled transitions 3352 [2022-12-13 13:58:22,659 INFO L134 LiptonReduction]: Checked pairs total: 8673 [2022-12-13 13:58:22,659 INFO L136 LiptonReduction]: Total number of compositions: 141 [2022-12-13 13:58:22,671 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:58:22,676 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;@1590f885, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:58:22,676 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-13 13:58:22,677 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 13:58:22,677 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:58:22,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:22,677 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 13:58:22,678 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:22,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:22,681 INFO L85 PathProgramCache]: Analyzing trace with hash 598, now seen corresponding path program 1 times [2022-12-13 13:58:22,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:22,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84339267] [2022-12-13 13:58:22,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:22,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:22,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:22,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:22,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84339267] [2022-12-13 13:58:22,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84339267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:22,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:22,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 13:58:22,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753129380] [2022-12-13 13:58:22,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:22,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:58:22,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:22,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:58:22,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:58:22,788 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 290 [2022-12-13 13:58:22,789 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 88 flow. Second operand has 2 states, 2 states have (on average 137.5) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:22,789 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:22,789 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 290 [2022-12-13 13:58:22,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:23,314 INFO L130 PetriNetUnfolder]: 3632/5137 cut-off events. [2022-12-13 13:58:23,314 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-13 13:58:23,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10230 conditions, 5137 events. 3632/5137 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 26600 event pairs, 3632 based on Foata normal form. 0/4413 useless extension candidates. Maximal degree in co-relation 10218. Up to 4990 conditions per place. [2022-12-13 13:58:23,338 INFO L137 encePairwiseOnDemand]: 281/290 looper letters, 25 selfloop transitions, 0 changer transitions 0/29 dead transitions. [2022-12-13 13:58:23,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 29 transitions, 120 flow [2022-12-13 13:58:23,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:58:23,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 13:58:23,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 308 transitions. [2022-12-13 13:58:23,348 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5310344827586206 [2022-12-13 13:58:23,349 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 308 transitions. [2022-12-13 13:58:23,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 308 transitions. [2022-12-13 13:58:23,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:23,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 308 transitions. [2022-12-13 13:58:23,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 154.0) internal successors, (308), 2 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:23,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:23,358 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 290.0) internal successors, (870), 3 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:23,359 INFO L175 Difference]: Start difference. First operand has 50 places, 38 transitions, 88 flow. Second operand 2 states and 308 transitions. [2022-12-13 13:58:23,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 29 transitions, 120 flow [2022-12-13 13:58:23,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 29 transitions, 116 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 13:58:23,364 INFO L231 Difference]: Finished difference. Result has 39 places, 29 transitions, 66 flow [2022-12-13 13:58:23,365 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=66, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2022-12-13 13:58:23,368 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -11 predicate places. [2022-12-13 13:58:23,368 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 66 flow [2022-12-13 13:58:23,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 137.5) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:23,368 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:23,368 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:23,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:58:23,369 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:23,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:23,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1764960378, now seen corresponding path program 1 times [2022-12-13 13:58:23,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:23,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044472656] [2022-12-13 13:58:23,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:23,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:23,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:23,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:23,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:23,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044472656] [2022-12-13 13:58:23,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044472656] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:23,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:23,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:58:23,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112666095] [2022-12-13 13:58:23,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:23,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:58:23,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:23,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:58:23,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:58:23,681 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 136 out of 290 [2022-12-13 13:58:23,681 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:23,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:23,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 136 of 290 [2022-12-13 13:58:23,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:24,085 INFO L130 PetriNetUnfolder]: 2891/4504 cut-off events. [2022-12-13 13:58:24,086 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:58:24,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8601 conditions, 4504 events. 2891/4504 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 26629 event pairs, 668 based on Foata normal form. 0/4212 useless extension candidates. Maximal degree in co-relation 8598. Up to 2980 conditions per place. [2022-12-13 13:58:24,104 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 33 selfloop transitions, 2 changer transitions 2/41 dead transitions. [2022-12-13 13:58:24,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 41 transitions, 164 flow [2022-12-13 13:58:24,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:58:24,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:58:24,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2022-12-13 13:58:24,109 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5126436781609195 [2022-12-13 13:58:24,109 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2022-12-13 13:58:24,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2022-12-13 13:58:24,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:24,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2022-12-13 13:58:24,111 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 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) [2022-12-13 13:58:24,113 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:24,114 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:24,114 INFO L175 Difference]: Start difference. First operand has 39 places, 29 transitions, 66 flow. Second operand 3 states and 446 transitions. [2022-12-13 13:58:24,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 41 transitions, 164 flow [2022-12-13 13:58:24,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 41 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:58:24,115 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 66 flow [2022-12-13 13:58:24,115 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2022-12-13 13:58:24,116 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -10 predicate places. [2022-12-13 13:58:24,116 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 66 flow [2022-12-13 13:58:24,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:24,116 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:24,117 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:24,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:58:24,117 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:24,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:24,118 INFO L85 PathProgramCache]: Analyzing trace with hash 385258909, now seen corresponding path program 1 times [2022-12-13 13:58:24,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:24,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896354453] [2022-12-13 13:58:24,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:24,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:24,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:24,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:24,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:24,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896354453] [2022-12-13 13:58:24,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896354453] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:24,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:24,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:58:24,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135914744] [2022-12-13 13:58:24,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:24,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:58:24,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:24,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:58:24,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:58:24,251 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 290 [2022-12-13 13:58:24,252 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:24,252 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:24,252 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 290 [2022-12-13 13:58:24,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:24,601 INFO L130 PetriNetUnfolder]: 2891/4180 cut-off events. [2022-12-13 13:58:24,602 INFO L131 PetriNetUnfolder]: For 153/153 co-relation queries the response was YES. [2022-12-13 13:58:24,605 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8459 conditions, 4180 events. 2891/4180 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 21500 event pairs, 1109 based on Foata normal form. 0/4068 useless extension candidates. Maximal degree in co-relation 8455. Up to 2503 conditions per place. [2022-12-13 13:58:24,617 INFO L137 encePairwiseOnDemand]: 287/290 looper letters, 33 selfloop transitions, 2 changer transitions 0/38 dead transitions. [2022-12-13 13:58:24,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 38 transitions, 158 flow [2022-12-13 13:58:24,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:58:24,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:58:24,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 441 transitions. [2022-12-13 13:58:24,619 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.506896551724138 [2022-12-13 13:58:24,619 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 441 transitions. [2022-12-13 13:58:24,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 441 transitions. [2022-12-13 13:58:24,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:24,620 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 441 transitions. [2022-12-13 13:58:24,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:24,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:24,624 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 290.0) internal successors, (1160), 4 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:24,625 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 66 flow. Second operand 3 states and 441 transitions. [2022-12-13 13:58:24,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 38 transitions, 158 flow [2022-12-13 13:58:24,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 38 transitions, 154 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:58:24,627 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 70 flow [2022-12-13 13:58:24,627 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=70, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2022-12-13 13:58:24,627 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -10 predicate places. [2022-12-13 13:58:24,627 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 70 flow [2022-12-13 13:58:24,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:24,628 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:24,628 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:24,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:58:24,628 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:24,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:24,628 INFO L85 PathProgramCache]: Analyzing trace with hash -941874825, now seen corresponding path program 1 times [2022-12-13 13:58:24,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:24,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295055237] [2022-12-13 13:58:24,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:24,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:25,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:25,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:25,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295055237] [2022-12-13 13:58:25,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295055237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:25,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:25,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:58:25,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848370481] [2022-12-13 13:58:25,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:25,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:58:25,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:25,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:58:25,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:58:25,333 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 290 [2022-12-13 13:58:25,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 70 flow. Second operand has 7 states, 7 states have (on average 121.71428571428571) internal successors, (852), 7 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:25,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:25,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 290 [2022-12-13 13:58:25,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:25,878 INFO L130 PetriNetUnfolder]: 2858/4147 cut-off events. [2022-12-13 13:58:25,878 INFO L131 PetriNetUnfolder]: For 144/144 co-relation queries the response was YES. [2022-12-13 13:58:25,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8646 conditions, 4147 events. 2858/4147 cut-off events. For 144/144 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 21457 event pairs, 300 based on Foata normal form. 180/4327 useless extension candidates. Maximal degree in co-relation 8641. Up to 2431 conditions per place. [2022-12-13 13:58:25,895 INFO L137 encePairwiseOnDemand]: 283/290 looper letters, 41 selfloop transitions, 5 changer transitions 12/61 dead transitions. [2022-12-13 13:58:25,895 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 61 transitions, 257 flow [2022-12-13 13:58:25,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:58:25,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 13:58:25,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 899 transitions. [2022-12-13 13:58:25,898 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44285714285714284 [2022-12-13 13:58:25,898 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 899 transitions. [2022-12-13 13:58:25,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 899 transitions. [2022-12-13 13:58:25,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:25,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 899 transitions. [2022-12-13 13:58:25,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 128.42857142857142) internal successors, (899), 7 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:25,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:25,906 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:25,906 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 70 flow. Second operand 7 states and 899 transitions. [2022-12-13 13:58:25,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 61 transitions, 257 flow [2022-12-13 13:58:25,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 61 transitions, 251 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:58:25,913 INFO L231 Difference]: Finished difference. Result has 46 places, 27 transitions, 82 flow [2022-12-13 13:58:25,913 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=82, PETRI_PLACES=46, PETRI_TRANSITIONS=27} [2022-12-13 13:58:25,913 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -4 predicate places. [2022-12-13 13:58:25,914 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 27 transitions, 82 flow [2022-12-13 13:58:25,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 121.71428571428571) internal successors, (852), 7 states have internal predecessors, (852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:25,914 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:25,914 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:25,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:58:25,915 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:25,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:25,915 INFO L85 PathProgramCache]: Analyzing trace with hash 864878848, now seen corresponding path program 1 times [2022-12-13 13:58:25,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:25,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768651591] [2022-12-13 13:58:25,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:25,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:26,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:26,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:26,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768651591] [2022-12-13 13:58:26,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768651591] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:26,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:26,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:58:26,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126872147] [2022-12-13 13:58:26,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:26,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:58:26,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:26,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:58:26,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:58:26,058 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 290 [2022-12-13 13:58:26,058 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 27 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:26,058 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:26,058 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 290 [2022-12-13 13:58:26,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:26,920 INFO L130 PetriNetUnfolder]: 8535/11744 cut-off events. [2022-12-13 13:58:26,920 INFO L131 PetriNetUnfolder]: For 1536/1536 co-relation queries the response was YES. [2022-12-13 13:58:26,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25758 conditions, 11744 events. 8535/11744 cut-off events. For 1536/1536 co-relation queries the response was YES. Maximal size of possible extension queue 413. Compared 59858 event pairs, 667 based on Foata normal form. 160/11904 useless extension candidates. Maximal degree in co-relation 25751. Up to 7349 conditions per place. [2022-12-13 13:58:26,955 INFO L137 encePairwiseOnDemand]: 281/290 looper letters, 58 selfloop transitions, 10 changer transitions 0/68 dead transitions. [2022-12-13 13:58:26,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 68 transitions, 334 flow [2022-12-13 13:58:26,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:58:26,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:58:26,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 578 transitions. [2022-12-13 13:58:26,957 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4982758620689655 [2022-12-13 13:58:26,957 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 578 transitions. [2022-12-13 13:58:26,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 578 transitions. [2022-12-13 13:58:26,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:26,958 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 578 transitions. [2022-12-13 13:58:26,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 144.5) internal successors, (578), 4 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:26,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 290.0) internal successors, (1450), 5 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:26,962 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 290.0) internal successors, (1450), 5 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:26,962 INFO L175 Difference]: Start difference. First operand has 46 places, 27 transitions, 82 flow. Second operand 4 states and 578 transitions. [2022-12-13 13:58:26,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 68 transitions, 334 flow [2022-12-13 13:58:26,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 68 transitions, 306 flow, removed 3 selfloop flow, removed 6 redundant places. [2022-12-13 13:58:26,984 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 150 flow [2022-12-13 13:58:26,984 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=150, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2022-12-13 13:58:26,985 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -5 predicate places. [2022-12-13 13:58:26,985 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 150 flow [2022-12-13 13:58:26,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.25) internal successors, (521), 4 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:26,985 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:26,985 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:26,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 13:58:26,986 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:26,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:26,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1041438521, now seen corresponding path program 1 times [2022-12-13 13:58:26,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:26,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621693186] [2022-12-13 13:58:26,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:26,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:27,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:27,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:27,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621693186] [2022-12-13 13:58:27,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621693186] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:27,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:27,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:58:27,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404114805] [2022-12-13 13:58:27,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:27,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:58:27,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:27,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:58:27,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:58:27,160 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 290 [2022-12-13 13:58:27,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 134.25) internal successors, (537), 4 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:27,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:27,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 290 [2022-12-13 13:58:27,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:27,869 INFO L130 PetriNetUnfolder]: 5045/7560 cut-off events. [2022-12-13 13:58:27,869 INFO L131 PetriNetUnfolder]: For 3823/3883 co-relation queries the response was YES. [2022-12-13 13:58:27,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18801 conditions, 7560 events. 5045/7560 cut-off events. For 3823/3883 co-relation queries the response was YES. Maximal size of possible extension queue 447. Compared 45029 event pairs, 1134 based on Foata normal form. 417/7706 useless extension candidates. Maximal degree in co-relation 18793. Up to 5607 conditions per place. [2022-12-13 13:58:27,902 INFO L137 encePairwiseOnDemand]: 283/290 looper letters, 63 selfloop transitions, 10 changer transitions 0/82 dead transitions. [2022-12-13 13:58:27,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 82 transitions, 443 flow [2022-12-13 13:58:27,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:58:27,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 13:58:27,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 717 transitions. [2022-12-13 13:58:27,905 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49448275862068963 [2022-12-13 13:58:27,905 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 717 transitions. [2022-12-13 13:58:27,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 717 transitions. [2022-12-13 13:58:27,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:27,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 717 transitions. [2022-12-13 13:58:27,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.4) internal successors, (717), 5 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:27,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 290.0) internal successors, (1740), 6 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:27,909 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 290.0) internal successors, (1740), 6 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:27,909 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 150 flow. Second operand 5 states and 717 transitions. [2022-12-13 13:58:27,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 82 transitions, 443 flow [2022-12-13 13:58:27,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 82 transitions, 443 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:58:27,911 INFO L231 Difference]: Finished difference. Result has 52 places, 45 transitions, 225 flow [2022-12-13 13:58:27,911 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=225, PETRI_PLACES=52, PETRI_TRANSITIONS=45} [2022-12-13 13:58:27,912 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2022-12-13 13:58:27,912 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 45 transitions, 225 flow [2022-12-13 13:58:27,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 134.25) internal successors, (537), 4 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:27,912 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:27,912 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:27,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:58:27,912 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:27,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:27,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1976728322, now seen corresponding path program 1 times [2022-12-13 13:58:27,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:27,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714852435] [2022-12-13 13:58:27,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:27,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:28,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:28,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:28,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714852435] [2022-12-13 13:58:28,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714852435] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:28,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:28,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:58:28,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111033472] [2022-12-13 13:58:28,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:28,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:58:28,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:28,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:58:28,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:58:28,065 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 290 [2022-12-13 13:58:28,066 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 45 transitions, 225 flow. Second operand has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:28,066 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:28,066 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 290 [2022-12-13 13:58:28,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:29,078 INFO L130 PetriNetUnfolder]: 8690/12587 cut-off events. [2022-12-13 13:58:29,078 INFO L131 PetriNetUnfolder]: For 14625/14625 co-relation queries the response was YES. [2022-12-13 13:58:29,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42817 conditions, 12587 events. 8690/12587 cut-off events. For 14625/14625 co-relation queries the response was YES. Maximal size of possible extension queue 467. Compared 70597 event pairs, 1918 based on Foata normal form. 101/12688 useless extension candidates. Maximal degree in co-relation 42805. Up to 6133 conditions per place. [2022-12-13 13:58:29,119 INFO L137 encePairwiseOnDemand]: 281/290 looper letters, 71 selfloop transitions, 16 changer transitions 11/98 dead transitions. [2022-12-13 13:58:29,119 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 98 transitions, 661 flow [2022-12-13 13:58:29,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:58:29,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:58:29,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 578 transitions. [2022-12-13 13:58:29,121 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4982758620689655 [2022-12-13 13:58:29,121 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 578 transitions. [2022-12-13 13:58:29,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 578 transitions. [2022-12-13 13:58:29,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:29,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 578 transitions. [2022-12-13 13:58:29,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 144.5) internal successors, (578), 4 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:29,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 290.0) internal successors, (1450), 5 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:29,123 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 290.0) internal successors, (1450), 5 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:29,123 INFO L175 Difference]: Start difference. First operand has 52 places, 45 transitions, 225 flow. Second operand 4 states and 578 transitions. [2022-12-13 13:58:29,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 98 transitions, 661 flow [2022-12-13 13:58:29,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 98 transitions, 652 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:58:29,142 INFO L231 Difference]: Finished difference. Result has 57 places, 50 transitions, 332 flow [2022-12-13 13:58:29,142 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=332, PETRI_PLACES=57, PETRI_TRANSITIONS=50} [2022-12-13 13:58:29,142 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 7 predicate places. [2022-12-13 13:58:29,142 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 332 flow [2022-12-13 13:58:29,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 131.0) internal successors, (524), 4 states have internal predecessors, (524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:29,143 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:29,143 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:29,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 13:58:29,143 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:29,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:29,143 INFO L85 PathProgramCache]: Analyzing trace with hash 249054282, now seen corresponding path program 1 times [2022-12-13 13:58:29,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:29,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631061285] [2022-12-13 13:58:29,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:29,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:29,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:29,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:29,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631061285] [2022-12-13 13:58:29,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631061285] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:29,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:29,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:58:29,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804525649] [2022-12-13 13:58:29,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:29,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:58:29,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:29,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:58:29,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:58:29,316 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 290 [2022-12-13 13:58:29,317 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 50 transitions, 332 flow. Second operand has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:29,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:29,317 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 290 [2022-12-13 13:58:29,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:30,076 INFO L130 PetriNetUnfolder]: 3254/5249 cut-off events. [2022-12-13 13:58:30,076 INFO L131 PetriNetUnfolder]: For 8569/8923 co-relation queries the response was YES. [2022-12-13 13:58:30,085 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18247 conditions, 5249 events. 3254/5249 cut-off events. For 8569/8923 co-relation queries the response was YES. Maximal size of possible extension queue 292. Compared 32193 event pairs, 442 based on Foata normal form. 477/5590 useless extension candidates. Maximal degree in co-relation 18233. Up to 2666 conditions per place. [2022-12-13 13:58:30,097 INFO L137 encePairwiseOnDemand]: 283/290 looper letters, 80 selfloop transitions, 14 changer transitions 1/109 dead transitions. [2022-12-13 13:58:30,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 109 transitions, 816 flow [2022-12-13 13:58:30,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:58:30,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:58:30,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 862 transitions. [2022-12-13 13:58:30,099 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4954022988505747 [2022-12-13 13:58:30,099 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 862 transitions. [2022-12-13 13:58:30,099 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 862 transitions. [2022-12-13 13:58:30,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:30,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 862 transitions. [2022-12-13 13:58:30,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 143.66666666666666) internal successors, (862), 6 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) [2022-12-13 13:58:30,103 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:30,104 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:30,104 INFO L175 Difference]: Start difference. First operand has 57 places, 50 transitions, 332 flow. Second operand 6 states and 862 transitions. [2022-12-13 13:58:30,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 109 transitions, 816 flow [2022-12-13 13:58:30,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 109 transitions, 814 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 13:58:30,123 INFO L231 Difference]: Finished difference. Result has 62 places, 58 transitions, 442 flow [2022-12-13 13:58:30,123 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=442, PETRI_PLACES=62, PETRI_TRANSITIONS=58} [2022-12-13 13:58:30,124 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 12 predicate places. [2022-12-13 13:58:30,124 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 58 transitions, 442 flow [2022-12-13 13:58:30,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.0) internal successors, (670), 5 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:30,124 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:30,124 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:30,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 13:58:30,124 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:30,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:30,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1158452145, now seen corresponding path program 1 times [2022-12-13 13:58:30,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:30,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750582362] [2022-12-13 13:58:30,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:30,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:30,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:30,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:30,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750582362] [2022-12-13 13:58:30,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750582362] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:30,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:30,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:58:30,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156354425] [2022-12-13 13:58:30,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:30,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:58:30,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:30,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:58:30,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:58:30,290 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 290 [2022-12-13 13:58:30,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 442 flow. Second operand has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:30,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:30,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 290 [2022-12-13 13:58:30,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:31,160 INFO L130 PetriNetUnfolder]: 5435/8369 cut-off events. [2022-12-13 13:58:31,160 INFO L131 PetriNetUnfolder]: For 26654/26654 co-relation queries the response was YES. [2022-12-13 13:58:31,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36924 conditions, 8369 events. 5435/8369 cut-off events. For 26654/26654 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 48726 event pairs, 704 based on Foata normal form. 40/8409 useless extension candidates. Maximal degree in co-relation 36907. Up to 4224 conditions per place. [2022-12-13 13:58:31,188 INFO L137 encePairwiseOnDemand]: 280/290 looper letters, 112 selfloop transitions, 34 changer transitions 18/164 dead transitions. [2022-12-13 13:58:31,188 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 164 transitions, 1531 flow [2022-12-13 13:58:31,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:58:31,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 13:58:31,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 716 transitions. [2022-12-13 13:58:31,191 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49379310344827587 [2022-12-13 13:58:31,191 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 716 transitions. [2022-12-13 13:58:31,191 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 716 transitions. [2022-12-13 13:58:31,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:31,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 716 transitions. [2022-12-13 13:58:31,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:31,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 290.0) internal successors, (1740), 6 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:31,194 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 290.0) internal successors, (1740), 6 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:31,194 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 442 flow. Second operand 5 states and 716 transitions. [2022-12-13 13:58:31,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 164 transitions, 1531 flow [2022-12-13 13:58:31,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 164 transitions, 1381 flow, removed 60 selfloop flow, removed 2 redundant places. [2022-12-13 13:58:31,307 INFO L231 Difference]: Finished difference. Result has 67 places, 76 transitions, 718 flow [2022-12-13 13:58:31,308 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=718, PETRI_PLACES=67, PETRI_TRANSITIONS=76} [2022-12-13 13:58:31,308 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 17 predicate places. [2022-12-13 13:58:31,308 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 76 transitions, 718 flow [2022-12-13 13:58:31,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:31,308 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:31,309 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:31,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 13:58:31,309 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:31,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:31,309 INFO L85 PathProgramCache]: Analyzing trace with hash -864398934, now seen corresponding path program 1 times [2022-12-13 13:58:31,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:31,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057172110] [2022-12-13 13:58:31,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:31,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:31,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:31,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:31,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057172110] [2022-12-13 13:58:31,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057172110] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:31,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:31,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:58:31,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407357184] [2022-12-13 13:58:31,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:31,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:58:31,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:31,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:58:31,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:58:31,507 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 290 [2022-12-13 13:58:31,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 76 transitions, 718 flow. Second operand has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:31,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:31,509 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 290 [2022-12-13 13:58:31,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:32,015 INFO L130 PetriNetUnfolder]: 2172/3621 cut-off events. [2022-12-13 13:58:32,015 INFO L131 PetriNetUnfolder]: For 12283/12673 co-relation queries the response was YES. [2022-12-13 13:58:32,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15031 conditions, 3621 events. 2172/3621 cut-off events. For 12283/12673 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 21541 event pairs, 204 based on Foata normal form. 388/3934 useless extension candidates. Maximal degree in co-relation 15011. Up to 1181 conditions per place. [2022-12-13 13:58:32,027 INFO L137 encePairwiseOnDemand]: 283/290 looper letters, 109 selfloop transitions, 18 changer transitions 14/164 dead transitions. [2022-12-13 13:58:32,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 164 transitions, 1646 flow [2022-12-13 13:58:32,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:58:32,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 13:58:32,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1005 transitions. [2022-12-13 13:58:32,032 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49507389162561577 [2022-12-13 13:58:32,032 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1005 transitions. [2022-12-13 13:58:32,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1005 transitions. [2022-12-13 13:58:32,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:32,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1005 transitions. [2022-12-13 13:58:32,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 143.57142857142858) internal successors, (1005), 7 states have internal predecessors, (1005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:32,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:32,035 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 290.0) internal successors, (2320), 8 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:32,035 INFO L175 Difference]: Start difference. First operand has 67 places, 76 transitions, 718 flow. Second operand 7 states and 1005 transitions. [2022-12-13 13:58:32,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 164 transitions, 1646 flow [2022-12-13 13:58:32,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 164 transitions, 1593 flow, removed 19 selfloop flow, removed 3 redundant places. [2022-12-13 13:58:32,049 INFO L231 Difference]: Finished difference. Result has 71 places, 81 transitions, 781 flow [2022-12-13 13:58:32,049 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=781, PETRI_PLACES=71, PETRI_TRANSITIONS=81} [2022-12-13 13:58:32,050 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 21 predicate places. [2022-12-13 13:58:32,050 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 81 transitions, 781 flow [2022-12-13 13:58:32,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.83333333333334) internal successors, (803), 6 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:32,050 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:32,050 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:32,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 13:58:32,050 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:32,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:32,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1940659848, now seen corresponding path program 1 times [2022-12-13 13:58:32,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:32,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389808831] [2022-12-13 13:58:32,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:32,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:32,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:32,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:32,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389808831] [2022-12-13 13:58:32,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389808831] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:32,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:32,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:58:32,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668503409] [2022-12-13 13:58:32,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:32,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:58:32,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:32,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:58:32,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:58:32,201 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 290 [2022-12-13 13:58:32,203 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 81 transitions, 781 flow. Second operand has 7 states, 7 states have (on average 133.71428571428572) internal successors, (936), 7 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:32,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:32,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 290 [2022-12-13 13:58:32,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:32,681 INFO L130 PetriNetUnfolder]: 2029/3347 cut-off events. [2022-12-13 13:58:32,681 INFO L131 PetriNetUnfolder]: For 11683/12035 co-relation queries the response was YES. [2022-12-13 13:58:32,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15117 conditions, 3347 events. 2029/3347 cut-off events. For 11683/12035 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 19787 event pairs, 180 based on Foata normal form. 160/3434 useless extension candidates. Maximal degree in co-relation 15096. Up to 1105 conditions per place. [2022-12-13 13:58:32,695 INFO L137 encePairwiseOnDemand]: 283/290 looper letters, 102 selfloop transitions, 23 changer transitions 14/159 dead transitions. [2022-12-13 13:58:32,695 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 159 transitions, 1597 flow [2022-12-13 13:58:32,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 13:58:32,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 13:58:32,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1268 transitions. [2022-12-13 13:58:32,697 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48582375478927203 [2022-12-13 13:58:32,697 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1268 transitions. [2022-12-13 13:58:32,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1268 transitions. [2022-12-13 13:58:32,698 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:32,698 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1268 transitions. [2022-12-13 13:58:32,699 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 140.88888888888889) internal successors, (1268), 9 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:32,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 290.0) internal successors, (2900), 10 states have internal predecessors, (2900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:32,702 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 290.0) internal successors, (2900), 10 states have internal predecessors, (2900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:32,702 INFO L175 Difference]: Start difference. First operand has 71 places, 81 transitions, 781 flow. Second operand 9 states and 1268 transitions. [2022-12-13 13:58:32,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 159 transitions, 1597 flow [2022-12-13 13:58:32,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 159 transitions, 1505 flow, removed 32 selfloop flow, removed 4 redundant places. [2022-12-13 13:58:32,801 INFO L231 Difference]: Finished difference. Result has 78 places, 76 transitions, 690 flow [2022-12-13 13:58:32,801 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=690, PETRI_PLACES=78, PETRI_TRANSITIONS=76} [2022-12-13 13:58:32,801 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 28 predicate places. [2022-12-13 13:58:32,801 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 76 transitions, 690 flow [2022-12-13 13:58:32,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 133.71428571428572) internal successors, (936), 7 states have internal predecessors, (936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:32,802 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:32,802 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:32,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 13:58:32,802 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:32,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:32,802 INFO L85 PathProgramCache]: Analyzing trace with hash 174534040, now seen corresponding path program 1 times [2022-12-13 13:58:32,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:32,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739548428] [2022-12-13 13:58:32,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:32,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:32,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:32,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:32,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739548428] [2022-12-13 13:58:32,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739548428] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:32,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:32,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:58:32,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150228389] [2022-12-13 13:58:32,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:32,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:58:32,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:32,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:58:32,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:58:32,946 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 290 [2022-12-13 13:58:32,947 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 76 transitions, 690 flow. Second operand has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:32,947 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:32,947 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 290 [2022-12-13 13:58:32,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:33,810 INFO L130 PetriNetUnfolder]: 3714/5930 cut-off events. [2022-12-13 13:58:33,810 INFO L131 PetriNetUnfolder]: For 24661/24661 co-relation queries the response was YES. [2022-12-13 13:58:33,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28254 conditions, 5930 events. 3714/5930 cut-off events. For 24661/24661 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 34661 event pairs, 601 based on Foata normal form. 1/5931 useless extension candidates. Maximal degree in co-relation 28231. Up to 2373 conditions per place. [2022-12-13 13:58:33,833 INFO L137 encePairwiseOnDemand]: 280/290 looper letters, 145 selfloop transitions, 34 changer transitions 23/202 dead transitions. [2022-12-13 13:58:33,833 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 202 transitions, 2106 flow [2022-12-13 13:58:33,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:58:33,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:58:33,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 845 transitions. [2022-12-13 13:58:33,834 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48563218390804597 [2022-12-13 13:58:33,834 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 845 transitions. [2022-12-13 13:58:33,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 845 transitions. [2022-12-13 13:58:33,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:33,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 845 transitions. [2022-12-13 13:58:33,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.83333333333334) internal successors, (845), 6 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:33,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:33,837 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:33,837 INFO L175 Difference]: Start difference. First operand has 78 places, 76 transitions, 690 flow. Second operand 6 states and 845 transitions. [2022-12-13 13:58:33,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 202 transitions, 2106 flow [2022-12-13 13:58:33,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 202 transitions, 1825 flow, removed 69 selfloop flow, removed 9 redundant places. [2022-12-13 13:58:33,981 INFO L231 Difference]: Finished difference. Result has 76 places, 90 transitions, 941 flow [2022-12-13 13:58:33,981 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=605, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=941, PETRI_PLACES=76, PETRI_TRANSITIONS=90} [2022-12-13 13:58:33,982 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 26 predicate places. [2022-12-13 13:58:33,982 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 90 transitions, 941 flow [2022-12-13 13:58:33,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:33,982 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:33,982 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:33,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 13:58:33,982 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:33,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:33,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1224015240, now seen corresponding path program 2 times [2022-12-13 13:58:33,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:33,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269957115] [2022-12-13 13:58:33,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:33,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:34,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:34,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:34,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269957115] [2022-12-13 13:58:34,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269957115] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:34,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:34,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:58:34,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146590382] [2022-12-13 13:58:34,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:34,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:58:34,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:34,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:58:34,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:58:34,115 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 290 [2022-12-13 13:58:34,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 90 transitions, 941 flow. Second operand has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:34,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:34,116 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 290 [2022-12-13 13:58:34,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:34,770 INFO L130 PetriNetUnfolder]: 3627/5715 cut-off events. [2022-12-13 13:58:34,770 INFO L131 PetriNetUnfolder]: For 26275/26275 co-relation queries the response was YES. [2022-12-13 13:58:34,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26398 conditions, 5715 events. 3627/5715 cut-off events. For 26275/26275 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 32649 event pairs, 494 based on Foata normal form. 1/5716 useless extension candidates. Maximal degree in co-relation 26376. Up to 2329 conditions per place. [2022-12-13 13:58:34,791 INFO L137 encePairwiseOnDemand]: 280/290 looper letters, 156 selfloop transitions, 37 changer transitions 0/193 dead transitions. [2022-12-13 13:58:34,791 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 193 transitions, 2019 flow [2022-12-13 13:58:34,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:58:34,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:58:34,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 845 transitions. [2022-12-13 13:58:34,793 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48563218390804597 [2022-12-13 13:58:34,793 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 845 transitions. [2022-12-13 13:58:34,793 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 845 transitions. [2022-12-13 13:58:34,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:34,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 845 transitions. [2022-12-13 13:58:34,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.83333333333334) internal successors, (845), 6 states have internal predecessors, (845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:34,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:34,796 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:34,796 INFO L175 Difference]: Start difference. First operand has 76 places, 90 transitions, 941 flow. Second operand 6 states and 845 transitions. [2022-12-13 13:58:34,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 193 transitions, 2019 flow [2022-12-13 13:58:34,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 193 transitions, 2001 flow, removed 9 selfloop flow, removed 2 redundant places. [2022-12-13 13:58:34,913 INFO L231 Difference]: Finished difference. Result has 79 places, 103 transitions, 1293 flow [2022-12-13 13:58:34,913 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=931, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1293, PETRI_PLACES=79, PETRI_TRANSITIONS=103} [2022-12-13 13:58:34,913 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 29 predicate places. [2022-12-13 13:58:34,913 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 103 transitions, 1293 flow [2022-12-13 13:58:34,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:34,914 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:34,914 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:34,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 13:58:34,914 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:34,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:34,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1283654212, now seen corresponding path program 3 times [2022-12-13 13:58:34,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:34,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685617768] [2022-12-13 13:58:34,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:34,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:35,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:35,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:58:35,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685617768] [2022-12-13 13:58:35,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685617768] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:35,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:35,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:58:35,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920678306] [2022-12-13 13:58:35,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:35,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:58:35,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:58:35,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:58:35,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:58:35,202 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 290 [2022-12-13 13:58:35,203 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 103 transitions, 1293 flow. Second operand has 5 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:35,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:35,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 290 [2022-12-13 13:58:35,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:35,950 INFO L130 PetriNetUnfolder]: 3715/6520 cut-off events. [2022-12-13 13:58:35,951 INFO L131 PetriNetUnfolder]: For 31375/31877 co-relation queries the response was YES. [2022-12-13 13:58:35,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28700 conditions, 6520 events. 3715/6520 cut-off events. For 31375/31877 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 47337 event pairs, 788 based on Foata normal form. 189/6576 useless extension candidates. Maximal degree in co-relation 28676. Up to 2769 conditions per place. [2022-12-13 13:58:35,999 INFO L137 encePairwiseOnDemand]: 285/290 looper letters, 144 selfloop transitions, 18 changer transitions 0/198 dead transitions. [2022-12-13 13:58:35,999 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 198 transitions, 2563 flow [2022-12-13 13:58:36,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:58:36,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:58:36,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 844 transitions. [2022-12-13 13:58:36,001 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4850574712643678 [2022-12-13 13:58:36,002 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 844 transitions. [2022-12-13 13:58:36,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 844 transitions. [2022-12-13 13:58:36,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:36,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 844 transitions. [2022-12-13 13:58:36,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 140.66666666666666) internal successors, (844), 6 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:36,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:36,006 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 290.0) internal successors, (2030), 7 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:36,007 INFO L175 Difference]: Start difference. First operand has 79 places, 103 transitions, 1293 flow. Second operand 6 states and 844 transitions. [2022-12-13 13:58:36,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 198 transitions, 2563 flow [2022-12-13 13:58:36,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 198 transitions, 2496 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-12-13 13:58:36,178 INFO L231 Difference]: Finished difference. Result has 83 places, 117 transitions, 1477 flow [2022-12-13 13:58:36,179 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=290, PETRI_DIFFERENCE_MINUEND_FLOW=1253, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1477, PETRI_PLACES=83, PETRI_TRANSITIONS=117} [2022-12-13 13:58:36,179 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 33 predicate places. [2022-12-13 13:58:36,179 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 117 transitions, 1477 flow [2022-12-13 13:58:36,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 136.2) internal successors, (681), 5 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:36,179 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:36,179 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:36,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 13:58:36,179 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:36,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:36,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1679674472, now seen corresponding path program 4 times [2022-12-13 13:58:36,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:58:36,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045286007] [2022-12-13 13:58:36,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:36,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:58:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:58:36,203 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:58:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:58:36,242 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:58:36,242 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:58:36,243 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-13 13:58:36,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-13 13:58:36,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-13 13:58:36,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-13 13:58:36,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-13 13:58:36,245 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-13 13:58:36,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-13 13:58:36,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-13 13:58:36,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-13 13:58:36,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-13 13:58:36,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-13 13:58:36,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-13 13:58:36,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-13 13:58:36,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-13 13:58:36,246 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-13 13:58:36,247 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-13 13:58:36,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 13:58:36,247 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:36,252 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 13:58:36,252 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:58:36,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:58:36 BasicIcfg [2022-12-13 13:58:36,296 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:58:36,296 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:58:36,296 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:58:36,296 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:58:36,296 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:58:18" (3/4) ... [2022-12-13 13:58:36,298 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:58:36,298 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:58:36,299 INFO L158 Benchmark]: Toolchain (without parser) took 18690.40ms. Allocated memory was 134.2MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 93.2MB in the beginning and 890.3MB in the end (delta: -797.0MB). Peak memory consumption was 345.8MB. Max. memory is 16.1GB. [2022-12-13 13:58:36,299 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 76.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:58:36,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.19ms. Allocated memory is still 134.2MB. Free memory was 93.2MB in the beginning and 66.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-13 13:58:36,300 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.48ms. Allocated memory is still 134.2MB. Free memory was 65.5MB in the beginning and 63.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:58:36,300 INFO L158 Benchmark]: Boogie Preprocessor took 30.23ms. Allocated memory is still 134.2MB. Free memory was 63.4MB in the beginning and 61.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:58:36,300 INFO L158 Benchmark]: RCFGBuilder took 545.19ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 61.3MB in the beginning and 102.7MB in the end (delta: -41.3MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2022-12-13 13:58:36,301 INFO L158 Benchmark]: TraceAbstraction took 17685.94ms. Allocated memory was 161.5MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 101.6MB in the beginning and 890.3MB in the end (delta: -788.7MB). Peak memory consumption was 324.9MB. Max. memory is 16.1GB. [2022-12-13 13:58:36,301 INFO L158 Benchmark]: Witness Printer took 2.63ms. Allocated memory is still 1.3GB. Free memory is still 890.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:58:36,302 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 76.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.19ms. Allocated memory is still 134.2MB. Free memory was 93.2MB in the beginning and 66.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.48ms. Allocated memory is still 134.2MB. Free memory was 65.5MB in the beginning and 63.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.23ms. Allocated memory is still 134.2MB. Free memory was 63.4MB in the beginning and 61.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 545.19ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 61.3MB in the beginning and 102.7MB in the end (delta: -41.3MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * TraceAbstraction took 17685.94ms. Allocated memory was 161.5MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 101.6MB in the beginning and 890.3MB in the end (delta: -788.7MB). Peak memory consumption was 324.9MB. Max. memory is 16.1GB. * Witness Printer took 2.63ms. Allocated memory is still 1.3GB. Free memory is still 890.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.9s, 156 PlacesBefore, 50 PlacesAfterwards, 145 TransitionsBefore, 38 TransitionsAfterwards, 3352 CoEnabledTransitionPairs, 8 FixpointIterations, 50 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 141 TotalNumberOfCompositions, 8673 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4241, independent: 4015, independent conditional: 0, independent unconditional: 4015, dependent: 226, dependent conditional: 0, dependent unconditional: 226, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1849, independent: 1810, independent conditional: 0, independent unconditional: 1810, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4241, independent: 2205, independent conditional: 0, independent unconditional: 2205, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 1849, unknown conditional: 0, unknown unconditional: 1849] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 157, Positive conditional cache size: 0, Positive unconditional cache size: 157, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int __unbuffered_p3_EBX = 0; [L720] 0 int a = 0; [L722] 0 int b = 0; [L723] 0 _Bool main$tmp_guard0; [L724] 0 _Bool main$tmp_guard1; [L726] 0 int x = 0; [L728] 0 int y = 0; [L730] 0 int z = 0; [L731] 0 _Bool z$flush_delayed; [L732] 0 int z$mem_tmp; [L733] 0 _Bool z$r_buff0_thd0; [L734] 0 _Bool z$r_buff0_thd1; [L735] 0 _Bool z$r_buff0_thd2; [L736] 0 _Bool z$r_buff0_thd3; [L737] 0 _Bool z$r_buff0_thd4; [L738] 0 _Bool z$r_buff1_thd0; [L739] 0 _Bool z$r_buff1_thd1; [L740] 0 _Bool z$r_buff1_thd2; [L741] 0 _Bool z$r_buff1_thd3; [L742] 0 _Bool z$r_buff1_thd4; [L743] 0 _Bool z$read_delayed; [L744] 0 int *z$read_delayed_var; [L745] 0 int z$w_buff0; [L746] 0 _Bool z$w_buff0_used; [L747] 0 int z$w_buff1; [L748] 0 _Bool z$w_buff1_used; [L749] 0 _Bool weak$$choice0; [L750] 0 _Bool weak$$choice2; [L856] 0 pthread_t t1029; [L857] FCALL, FORK 0 pthread_create(&t1029, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1029, ((void *)0), P0, ((void *)0))=-3, t1029={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L858] 0 pthread_t t1030; [L859] FCALL, FORK 0 pthread_create(&t1030, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1030, ((void *)0), P1, ((void *)0))=-2, t1029={5:0}, t1030={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L860] 0 pthread_t t1031; [L861] FCALL, FORK 0 pthread_create(&t1031, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1031, ((void *)0), P2, ((void *)0))=-1, t1029={5:0}, t1030={6:0}, t1031={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L862] 0 pthread_t t1032; [L863] FCALL, FORK 0 pthread_create(&t1032, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1032, ((void *)0), P3, ((void *)0))=0, t1029={5:0}, t1030={6:0}, t1031={7:0}, t1032={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L812] 4 z$w_buff1 = z$w_buff0 [L813] 4 z$w_buff0 = 1 [L814] 4 z$w_buff1_used = z$w_buff0_used [L815] 4 z$w_buff0_used = (_Bool)1 [L816] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L816] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L817] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L818] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L819] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L820] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L821] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L822] 4 z$r_buff0_thd4 = (_Bool)1 [L825] 4 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L828] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L831] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L754] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L757] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L769] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L772] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L784] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L787] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L788] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L789] 3 z$flush_delayed = weak$$choice2 [L790] 3 z$mem_tmp = z [L791] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L792] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L793] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L794] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L795] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L796] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L797] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L798] 3 __unbuffered_p2_EAX = z [L799] 3 z = z$flush_delayed ? z$mem_tmp : z [L800] 3 z$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L762] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L764] 1 return 0; [L777] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L779] 2 return 0; [L834] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L835] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L836] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L837] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L838] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L805] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L807] 3 return 0; [L841] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L843] 4 return 0; [L865] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L867] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L867] RET 0 assume_abort_if_not(main$tmp_guard0) [L869] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L870] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L871] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L872] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L873] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1029={5:0}, t1030={6:0}, t1031={7:0}, t1032={3:0}, weak$$choice0=49, weak$$choice2=0, x=1, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L876] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L878] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=1, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 861]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 857]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 184 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 17.5s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 10.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 813 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 679 mSDsluCounter, 175 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 98 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2073 IncrementalHoareTripleChecker+Invalid, 2161 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 77 mSDtfsCounter, 2073 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1477occurred in iteration=14, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 253 NumberOfCodeBlocks, 253 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 1339 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 13:58:36,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/mix039.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4df22382a468f75ea1bc6624bacd8789c0b9b9f8aa1bc2866cf2715dcbc507bc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 13:58:37,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:58:37,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:58:37,960 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:58:37,960 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:58:37,961 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:58:37,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:58:37,963 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:58:37,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:58:37,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:58:37,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:58:37,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:58:37,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:58:37,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:58:37,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:58:37,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:58:37,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:58:37,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:58:37,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:58:37,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:58:37,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:58:37,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:58:37,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:58:37,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:58:37,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:58:37,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:58:37,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:58:37,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:58:37,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:58:37,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:58:37,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:58:37,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:58:37,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:58:37,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:58:37,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:58:37,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:58:37,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:58:37,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:58:37,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:58:37,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:58:37,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:58:37,995 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 13:58:38,010 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:58:38,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:58:38,011 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:58:38,011 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:58:38,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:58:38,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:58:38,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:58:38,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:58:38,012 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:58:38,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:58:38,012 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:58:38,012 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:58:38,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:58:38,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:58:38,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:58:38,013 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 13:58:38,013 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 13:58:38,013 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 13:58:38,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:58:38,013 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 13:58:38,013 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 13:58:38,014 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 13:58:38,014 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:58:38,014 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:58:38,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:58:38,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:58:38,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:58:38,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:58:38,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:58:38,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:58:38,015 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 13:58:38,015 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 13:58:38,015 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:58:38,015 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:58:38,015 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:58:38,015 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 13:58:38,015 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:58:38,015 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_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4df22382a468f75ea1bc6624bacd8789c0b9b9f8aa1bc2866cf2715dcbc507bc [2022-12-13 13:58:38,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:58:38,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:58:38,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:58:38,270 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:58:38,270 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:58:38,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/mix039.opt.i [2022-12-13 13:58:40,882 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:58:41,053 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:58:41,054 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/sv-benchmarks/c/pthread-wmm/mix039.opt.i [2022-12-13 13:58:41,064 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/data/16a8746a3/309798ef407c4d7c9f969bb2b45225b9/FLAGe9850b2a0 [2022-12-13 13:58:41,079 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/data/16a8746a3/309798ef407c4d7c9f969bb2b45225b9 [2022-12-13 13:58:41,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:58:41,083 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:58:41,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:58:41,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:58:41,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:58:41,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:58:41" (1/1) ... [2022-12-13 13:58:41,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@357e74a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:41, skipping insertion in model container [2022-12-13 13:58:41,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:58:41" (1/1) ... [2022-12-13 13:58:41,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:58:41,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:58:41,266 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/sv-benchmarks/c/pthread-wmm/mix039.opt.i[944,957] [2022-12-13 13:58:41,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:58:41,403 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:58:41,412 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/sv-benchmarks/c/pthread-wmm/mix039.opt.i[944,957] [2022-12-13 13:58:41,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,429 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,430 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,442 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,443 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,444 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 13:58:41,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 13:58:41,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:58:41,468 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:58:41,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:41 WrapperNode [2022-12-13 13:58:41,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:58:41,469 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:58:41,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:58:41,470 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:58:41,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:41" (1/1) ... [2022-12-13 13:58:41,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:41" (1/1) ... [2022-12-13 13:58:41,506 INFO L138 Inliner]: procedures = 180, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 153 [2022-12-13 13:58:41,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:58:41,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:58:41,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:58:41,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:58:41,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:41" (1/1) ... [2022-12-13 13:58:41,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:41" (1/1) ... [2022-12-13 13:58:41,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:41" (1/1) ... [2022-12-13 13:58:41,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:41" (1/1) ... [2022-12-13 13:58:41,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:41" (1/1) ... [2022-12-13 13:58:41,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:41" (1/1) ... [2022-12-13 13:58:41,525 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:41" (1/1) ... [2022-12-13 13:58:41,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:41" (1/1) ... [2022-12-13 13:58:41,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:58:41,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:58:41,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:58:41,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:58:41,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:41" (1/1) ... [2022-12-13 13:58:41,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:58:41,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:58:41,558 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:58:41,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:58:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 13:58:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:58:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:58:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:58:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 13:58:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 13:58:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 13:58:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 13:58:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 13:58:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 13:58:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 13:58:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 13:58:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-13 13:58:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-13 13:58:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 13:58:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:58:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:58:41,594 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 13:58:41,726 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:58:41,728 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:58:42,047 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:58:42,137 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:58:42,137 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:58:42,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:58:42 BoogieIcfgContainer [2022-12-13 13:58:42,139 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:58:42,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:58:42,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:58:42,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:58:42,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:58:41" (1/3) ... [2022-12-13 13:58:42,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21871ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:58:42, skipping insertion in model container [2022-12-13 13:58:42,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:41" (2/3) ... [2022-12-13 13:58:42,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21871ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:58:42, skipping insertion in model container [2022-12-13 13:58:42,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:58:42" (3/3) ... [2022-12-13 13:58:42,146 INFO L112 eAbstractionObserver]: Analyzing ICFG mix039.opt.i [2022-12-13 13:58:42,160 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:58:42,160 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2022-12-13 13:58:42,160 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:58:42,211 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 13:58:42,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 150 transitions, 320 flow [2022-12-13 13:58:42,297 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-12-13 13:58:42,297 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:58:42,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 95 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-13 13:58:42,301 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 150 transitions, 320 flow [2022-12-13 13:58:42,306 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 157 places, 146 transitions, 304 flow [2022-12-13 13:58:42,310 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:58:42,319 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 146 transitions, 304 flow [2022-12-13 13:58:42,322 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 146 transitions, 304 flow [2022-12-13 13:58:42,323 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 157 places, 146 transitions, 304 flow [2022-12-13 13:58:42,355 INFO L130 PetriNetUnfolder]: 2/146 cut-off events. [2022-12-13 13:58:42,355 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:58:42,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 146 events. 2/146 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-12-13 13:58:42,359 INFO L119 LiptonReduction]: Number of co-enabled transitions 3352 [2022-12-13 13:58:49,800 INFO L134 LiptonReduction]: Checked pairs total: 8083 [2022-12-13 13:58:49,800 INFO L136 LiptonReduction]: Total number of compositions: 148 [2022-12-13 13:58:49,817 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:58:49,823 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;@549ceeff, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:58:49,823 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-12-13 13:58:49,825 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 13:58:49,829 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:58:49,830 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:49,830 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 13:58:49,831 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:49,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:49,836 INFO L85 PathProgramCache]: Analyzing trace with hash 608, now seen corresponding path program 1 times [2022-12-13 13:58:49,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:58:49,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1532742127] [2022-12-13 13:58:49,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:49,847 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:49,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:58:49,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:58:49,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 13:58:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:49,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 13:58:49,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:58:49,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:49,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:58:49,903 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:58:49,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1532742127] [2022-12-13 13:58:49,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1532742127] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:49,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:49,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 13:58:49,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566876371] [2022-12-13 13:58:49,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:49,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:58:49,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:58:49,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:58:49,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:58:49,927 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 298 [2022-12-13 13:58:49,930 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 38 transitions, 88 flow. Second operand has 2 states, 2 states have (on average 138.5) internal successors, (277), 2 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:49,930 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:49,930 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 298 [2022-12-13 13:58:49,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:50,608 INFO L130 PetriNetUnfolder]: 3632/5137 cut-off events. [2022-12-13 13:58:50,608 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-12-13 13:58:50,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10230 conditions, 5137 events. 3632/5137 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 26591 event pairs, 3632 based on Foata normal form. 0/4413 useless extension candidates. Maximal degree in co-relation 10218. Up to 4990 conditions per place. [2022-12-13 13:58:50,632 INFO L137 encePairwiseOnDemand]: 289/298 looper letters, 25 selfloop transitions, 0 changer transitions 0/29 dead transitions. [2022-12-13 13:58:50,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 29 transitions, 120 flow [2022-12-13 13:58:50,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:58:50,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 13:58:50,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 310 transitions. [2022-12-13 13:58:50,644 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5201342281879194 [2022-12-13 13:58:50,644 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 310 transitions. [2022-12-13 13:58:50,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 310 transitions. [2022-12-13 13:58:50,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:50,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 310 transitions. [2022-12-13 13:58:50,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 155.0) internal successors, (310), 2 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:50,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 298.0) internal successors, (894), 3 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:50,653 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 298.0) internal successors, (894), 3 states have internal predecessors, (894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:50,654 INFO L175 Difference]: Start difference. First operand has 50 places, 38 transitions, 88 flow. Second operand 2 states and 310 transitions. [2022-12-13 13:58:50,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 29 transitions, 120 flow [2022-12-13 13:58:50,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 29 transitions, 116 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 13:58:50,659 INFO L231 Difference]: Finished difference. Result has 39 places, 29 transitions, 66 flow [2022-12-13 13:58:50,660 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=66, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2022-12-13 13:58:50,663 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -11 predicate places. [2022-12-13 13:58:50,663 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 66 flow [2022-12-13 13:58:50,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 138.5) internal successors, (277), 2 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:50,664 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:50,664 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:50,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:58:50,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:50,864 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:50,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:50,865 INFO L85 PathProgramCache]: Analyzing trace with hash -722238835, now seen corresponding path program 1 times [2022-12-13 13:58:50,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:58:50,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [41702432] [2022-12-13 13:58:50,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:50,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:50,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:58:50,867 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:58:50,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 13:58:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:50,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:58:50,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:58:50,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:50,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:58:50,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:58:50,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [41702432] [2022-12-13 13:58:50,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [41702432] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:50,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:50,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:58:50,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667494065] [2022-12-13 13:58:50,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:50,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:58:50,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:58:50,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:58:50,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:58:50,993 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 298 [2022-12-13 13:58:50,994 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:50,994 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:50,994 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 298 [2022-12-13 13:58:50,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:51,481 INFO L130 PetriNetUnfolder]: 2891/4504 cut-off events. [2022-12-13 13:58:51,481 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:58:51,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8601 conditions, 4504 events. 2891/4504 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 26569 event pairs, 668 based on Foata normal form. 0/4212 useless extension candidates. Maximal degree in co-relation 8598. Up to 2980 conditions per place. [2022-12-13 13:58:51,495 INFO L137 encePairwiseOnDemand]: 295/298 looper letters, 33 selfloop transitions, 2 changer transitions 2/41 dead transitions. [2022-12-13 13:58:51,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 41 transitions, 164 flow [2022-12-13 13:58:51,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:58:51,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:58:51,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 449 transitions. [2022-12-13 13:58:51,499 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5022371364653244 [2022-12-13 13:58:51,499 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 449 transitions. [2022-12-13 13:58:51,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 449 transitions. [2022-12-13 13:58:51,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:51,500 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 449 transitions. [2022-12-13 13:58:51,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.66666666666666) internal successors, (449), 3 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:51,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:51,504 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:51,504 INFO L175 Difference]: Start difference. First operand has 39 places, 29 transitions, 66 flow. Second operand 3 states and 449 transitions. [2022-12-13 13:58:51,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 41 transitions, 164 flow [2022-12-13 13:58:51,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 41 transitions, 164 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:58:51,505 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 66 flow [2022-12-13 13:58:51,506 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=66, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2022-12-13 13:58:51,506 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -10 predicate places. [2022-12-13 13:58:51,506 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 66 flow [2022-12-13 13:58:51,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:51,507 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:51,507 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:51,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 13:58:51,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:51,708 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:51,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:51,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1713282790, now seen corresponding path program 1 times [2022-12-13 13:58:51,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:58:51,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739875486] [2022-12-13 13:58:51,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:51,709 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:51,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:58:51,710 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:58:51,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 13:58:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:51,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:58:51,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:58:51,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:51,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:58:51,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:58:51,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739875486] [2022-12-13 13:58:51,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1739875486] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:51,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:51,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:58:51,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956839435] [2022-12-13 13:58:51,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:51,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:58:51,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:58:51,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:58:51,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:58:51,845 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 298 [2022-12-13 13:58:51,847 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 66 flow. Second operand has 4 states, 4 states have (on average 134.75) internal successors, (539), 4 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:51,847 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:51,847 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 298 [2022-12-13 13:58:51,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:52,292 INFO L130 PetriNetUnfolder]: 2063/3015 cut-off events. [2022-12-13 13:58:52,292 INFO L131 PetriNetUnfolder]: For 180/180 co-relation queries the response was YES. [2022-12-13 13:58:52,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6298 conditions, 3015 events. 2063/3015 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 15191 event pairs, 425 based on Foata normal form. 144/3038 useless extension candidates. Maximal degree in co-relation 6294. Up to 2373 conditions per place. [2022-12-13 13:58:52,303 INFO L137 encePairwiseOnDemand]: 291/298 looper letters, 34 selfloop transitions, 5 changer transitions 21/64 dead transitions. [2022-12-13 13:58:52,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 64 transitions, 272 flow [2022-12-13 13:58:52,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:58:52,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 13:58:52,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 722 transitions. [2022-12-13 13:58:52,307 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48456375838926175 [2022-12-13 13:58:52,307 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 722 transitions. [2022-12-13 13:58:52,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 722 transitions. [2022-12-13 13:58:52,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:52,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 722 transitions. [2022-12-13 13:58:52,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 144.4) internal successors, (722), 5 states have internal predecessors, (722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:52,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 298.0) internal successors, (1788), 6 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:52,314 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 298.0) internal successors, (1788), 6 states have internal predecessors, (1788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:52,314 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 66 flow. Second operand 5 states and 722 transitions. [2022-12-13 13:58:52,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 64 transitions, 272 flow [2022-12-13 13:58:52,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 64 transitions, 262 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:58:52,317 INFO L231 Difference]: Finished difference. Result has 44 places, 31 transitions, 107 flow [2022-12-13 13:58:52,317 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=107, PETRI_PLACES=44, PETRI_TRANSITIONS=31} [2022-12-13 13:58:52,318 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -6 predicate places. [2022-12-13 13:58:52,318 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 31 transitions, 107 flow [2022-12-13 13:58:52,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 134.75) internal successors, (539), 4 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:52,318 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:52,319 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:52,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 13:58:52,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:52,520 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:52,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:52,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1613723193, now seen corresponding path program 1 times [2022-12-13 13:58:52,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:58:52,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812743482] [2022-12-13 13:58:52,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:52,521 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:52,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:58:52,522 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:58:52,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 13:58:52,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:52,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 13:58:52,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:58:52,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:52,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:58:52,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:58:52,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812743482] [2022-12-13 13:58:52,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812743482] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:52,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:52,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:58:52,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679681551] [2022-12-13 13:58:52,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:52,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:58:52,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:58:52,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:58:52,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:58:52,671 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 298 [2022-12-13 13:58:52,672 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 31 transitions, 107 flow. Second operand has 5 states, 5 states have (on average 134.6) internal successors, (673), 5 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:52,672 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:52,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 298 [2022-12-13 13:58:52,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:53,004 INFO L130 PetriNetUnfolder]: 1079/1695 cut-off events. [2022-12-13 13:58:53,004 INFO L131 PetriNetUnfolder]: For 759/759 co-relation queries the response was YES. [2022-12-13 13:58:53,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4725 conditions, 1695 events. 1079/1695 cut-off events. For 759/759 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 8153 event pairs, 161 based on Foata normal form. 108/1746 useless extension candidates. Maximal degree in co-relation 4718. Up to 883 conditions per place. [2022-12-13 13:58:53,011 INFO L137 encePairwiseOnDemand]: 291/298 looper letters, 44 selfloop transitions, 9 changer transitions 21/78 dead transitions. [2022-12-13 13:58:53,011 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 78 transitions, 409 flow [2022-12-13 13:58:53,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:58:53,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 13:58:53,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 868 transitions. [2022-12-13 13:58:53,013 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4854586129753915 [2022-12-13 13:58:53,013 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 868 transitions. [2022-12-13 13:58:53,014 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 868 transitions. [2022-12-13 13:58:53,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:53,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 868 transitions. [2022-12-13 13:58:53,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 144.66666666666666) internal successors, (868), 6 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:53,017 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:53,017 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 298.0) internal successors, (2086), 7 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:53,018 INFO L175 Difference]: Start difference. First operand has 44 places, 31 transitions, 107 flow. Second operand 6 states and 868 transitions. [2022-12-13 13:58:53,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 78 transitions, 409 flow [2022-12-13 13:58:53,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 78 transitions, 402 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 13:58:53,021 INFO L231 Difference]: Finished difference. Result has 48 places, 35 transitions, 172 flow [2022-12-13 13:58:53,022 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=172, PETRI_PLACES=48, PETRI_TRANSITIONS=35} [2022-12-13 13:58:53,022 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -2 predicate places. [2022-12-13 13:58:53,022 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 35 transitions, 172 flow [2022-12-13 13:58:53,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 134.6) internal successors, (673), 5 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:53,023 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:53,023 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:53,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-13 13:58:53,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:53,225 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:53,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:53,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1212370195, now seen corresponding path program 1 times [2022-12-13 13:58:53,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:58:53,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818514485] [2022-12-13 13:58:53,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:53,228 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:53,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:58:53,231 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:58:53,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 13:58:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:53,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 13:58:53,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:58:53,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:53,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:58:53,450 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:58:53,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818514485] [2022-12-13 13:58:53,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818514485] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:53,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:53,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:58:53,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954181146] [2022-12-13 13:58:53,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:53,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:58:53,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:58:53,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:58:53,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:58:53,475 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 298 [2022-12-13 13:58:53,476 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 35 transitions, 172 flow. Second operand has 6 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:53,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:53,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 298 [2022-12-13 13:58:53,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:53,823 INFO L130 PetriNetUnfolder]: 566/937 cut-off events. [2022-12-13 13:58:53,823 INFO L131 PetriNetUnfolder]: For 1081/1081 co-relation queries the response was YES. [2022-12-13 13:58:53,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3089 conditions, 937 events. 566/937 cut-off events. For 1081/1081 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4015 event pairs, 104 based on Foata normal form. 48/965 useless extension candidates. Maximal degree in co-relation 3080. Up to 351 conditions per place. [2022-12-13 13:58:53,827 INFO L137 encePairwiseOnDemand]: 291/298 looper letters, 52 selfloop transitions, 13 changer transitions 21/90 dead transitions. [2022-12-13 13:58:53,827 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 90 transitions, 566 flow [2022-12-13 13:58:53,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:58:53,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 13:58:53,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1012 transitions. [2022-12-13 13:58:53,831 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4851390220517737 [2022-12-13 13:58:53,831 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1012 transitions. [2022-12-13 13:58:53,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1012 transitions. [2022-12-13 13:58:53,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:53,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1012 transitions. [2022-12-13 13:58:53,835 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 144.57142857142858) internal successors, (1012), 7 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:53,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 298.0) internal successors, (2384), 8 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:53,841 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 298.0) internal successors, (2384), 8 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:53,841 INFO L175 Difference]: Start difference. First operand has 48 places, 35 transitions, 172 flow. Second operand 7 states and 1012 transitions. [2022-12-13 13:58:53,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 90 transitions, 566 flow [2022-12-13 13:58:53,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 90 transitions, 504 flow, removed 26 selfloop flow, removed 4 redundant places. [2022-12-13 13:58:53,851 INFO L231 Difference]: Finished difference. Result has 51 places, 39 transitions, 222 flow [2022-12-13 13:58:53,851 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=222, PETRI_PLACES=51, PETRI_TRANSITIONS=39} [2022-12-13 13:58:53,852 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 1 predicate places. [2022-12-13 13:58:53,852 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 39 transitions, 222 flow [2022-12-13 13:58:53,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.5) internal successors, (807), 6 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:53,853 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:53,853 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:53,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 13:58:54,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:54,054 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:54,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:54,055 INFO L85 PathProgramCache]: Analyzing trace with hash -2130599270, now seen corresponding path program 1 times [2022-12-13 13:58:54,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:58:54,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1262847733] [2022-12-13 13:58:54,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:54,056 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:54,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:58:54,057 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:58:54,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-13 13:58:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:54,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 13:58:54,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:58:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:54,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:58:54,212 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:58:54,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1262847733] [2022-12-13 13:58:54,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1262847733] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:54,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:54,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 13:58:54,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541880192] [2022-12-13 13:58:54,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:54,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 13:58:54,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:58:54,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 13:58:54,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:58:54,240 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 298 [2022-12-13 13:58:54,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 222 flow. Second operand has 7 states, 7 states have (on average 134.57142857142858) internal successors, (942), 7 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:54,242 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:54,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 298 [2022-12-13 13:58:54,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:54,635 INFO L130 PetriNetUnfolder]: 452/736 cut-off events. [2022-12-13 13:58:54,635 INFO L131 PetriNetUnfolder]: For 816/816 co-relation queries the response was YES. [2022-12-13 13:58:54,637 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2329 conditions, 736 events. 452/736 cut-off events. For 816/816 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2982 event pairs, 99 based on Foata normal form. 11/737 useless extension candidates. Maximal degree in co-relation 2319. Up to 290 conditions per place. [2022-12-13 13:58:54,639 INFO L137 encePairwiseOnDemand]: 291/298 looper letters, 48 selfloop transitions, 17 changer transitions 11/80 dead transitions. [2022-12-13 13:58:54,640 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 80 transitions, 514 flow [2022-12-13 13:58:54,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:58:54,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 13:58:54,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1134 transitions. [2022-12-13 13:58:54,643 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.47567114093959734 [2022-12-13 13:58:54,643 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1134 transitions. [2022-12-13 13:58:54,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1134 transitions. [2022-12-13 13:58:54,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:54,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1134 transitions. [2022-12-13 13:58:54,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 141.75) internal successors, (1134), 8 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:54,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 298.0) internal successors, (2682), 9 states have internal predecessors, (2682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:54,649 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 298.0) internal successors, (2682), 9 states have internal predecessors, (2682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:54,649 INFO L175 Difference]: Start difference. First operand has 51 places, 39 transitions, 222 flow. Second operand 8 states and 1134 transitions. [2022-12-13 13:58:54,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 80 transitions, 514 flow [2022-12-13 13:58:54,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 80 transitions, 452 flow, removed 22 selfloop flow, removed 5 redundant places. [2022-12-13 13:58:54,654 INFO L231 Difference]: Finished difference. Result has 54 places, 39 transitions, 216 flow [2022-12-13 13:58:54,654 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=216, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2022-12-13 13:58:54,655 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 4 predicate places. [2022-12-13 13:58:54,655 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 39 transitions, 216 flow [2022-12-13 13:58:54,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 134.57142857142858) internal successors, (942), 7 states have internal predecessors, (942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:54,656 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:54,656 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:54,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-12-13 13:58:54,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:54,858 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:54,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:54,859 INFO L85 PathProgramCache]: Analyzing trace with hash -756838929, now seen corresponding path program 1 times [2022-12-13 13:58:54,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:58:54,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779670472] [2022-12-13 13:58:54,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:58:54,860 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 [2022-12-13 13:58:54,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:58:54,861 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:58:54,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-13 13:58:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:58:54,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:58:54,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:58:54,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:54,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:58:54,985 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:58:54,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1779670472] [2022-12-13 13:58:54,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1779670472] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:54,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:54,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:58:54,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016581639] [2022-12-13 13:58:54,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:54,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:58:54,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:58:54,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:58:54,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:58:54,992 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 298 [2022-12-13 13:58:54,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 39 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:54,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:54,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 298 [2022-12-13 13:58:54,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:55,187 INFO L130 PetriNetUnfolder]: 795/1304 cut-off events. [2022-12-13 13:58:55,188 INFO L131 PetriNetUnfolder]: For 1712/1712 co-relation queries the response was YES. [2022-12-13 13:58:55,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4025 conditions, 1304 events. 795/1304 cut-off events. For 1712/1712 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 6374 event pairs, 373 based on Foata normal form. 0/1286 useless extension candidates. Maximal degree in co-relation 4014. Up to 764 conditions per place. [2022-12-13 13:58:55,195 INFO L137 encePairwiseOnDemand]: 295/298 looper letters, 63 selfloop transitions, 2 changer transitions 0/68 dead transitions. [2022-12-13 13:58:55,195 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 534 flow [2022-12-13 13:58:55,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:58:55,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:58:55,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2022-12-13 13:58:55,196 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5 [2022-12-13 13:58:55,196 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 447 transitions. [2022-12-13 13:58:55,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 447 transitions. [2022-12-13 13:58:55,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:55,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 447 transitions. [2022-12-13 13:58:55,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.0) internal successors, (447), 3 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:55,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:55,198 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 298.0) internal successors, (1192), 4 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:55,198 INFO L175 Difference]: Start difference. First operand has 54 places, 39 transitions, 216 flow. Second operand 3 states and 447 transitions. [2022-12-13 13:58:55,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 534 flow [2022-12-13 13:58:55,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 68 transitions, 408 flow, removed 38 selfloop flow, removed 7 redundant places. [2022-12-13 13:58:55,205 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 164 flow [2022-12-13 13:58:55,205 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2022-12-13 13:58:55,205 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, -2 predicate places. [2022-12-13 13:58:55,205 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 164 flow [2022-12-13 13:58:55,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:55,206 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:55,206 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:55,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-13 13:58:55,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:55,407 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:55,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:55,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1155325221, now seen corresponding path program 2 times [2022-12-13 13:58:55,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:58:55,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1324704909] [2022-12-13 13:58:55,408 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:58:55,408 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:55,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:58:55,409 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:58:55,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-13 13:58:55,531 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 13:58:55,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:58:55,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 13:58:55,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:58:55,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:55,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:58:55,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:58:55,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1324704909] [2022-12-13 13:58:55,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1324704909] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:55,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:55,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:58:55,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744468940] [2022-12-13 13:58:55,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:55,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:58:55,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:58:55,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:58:55,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:58:55,580 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 298 [2022-12-13 13:58:55,581 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 139.5) internal successors, (558), 4 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:55,581 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:55,581 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 298 [2022-12-13 13:58:55,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:55,787 INFO L130 PetriNetUnfolder]: 920/1544 cut-off events. [2022-12-13 13:58:55,788 INFO L131 PetriNetUnfolder]: For 1311/1311 co-relation queries the response was YES. [2022-12-13 13:58:55,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4518 conditions, 1544 events. 920/1544 cut-off events. For 1311/1311 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 8085 event pairs, 138 based on Foata normal form. 1/1541 useless extension candidates. Maximal degree in co-relation 4509. Up to 831 conditions per place. [2022-12-13 13:58:55,793 INFO L137 encePairwiseOnDemand]: 295/298 looper letters, 82 selfloop transitions, 2 changer transitions 0/87 dead transitions. [2022-12-13 13:58:55,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 87 transitions, 542 flow [2022-12-13 13:58:55,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:58:55,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:58:55,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 588 transitions. [2022-12-13 13:58:55,795 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49328859060402686 [2022-12-13 13:58:55,795 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 588 transitions. [2022-12-13 13:58:55,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 588 transitions. [2022-12-13 13:58:55,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:55,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 588 transitions. [2022-12-13 13:58:55,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 147.0) internal successors, (588), 4 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:55,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 298.0) internal successors, (1490), 5 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:55,797 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 298.0) internal successors, (1490), 5 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:55,797 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 164 flow. Second operand 4 states and 588 transitions. [2022-12-13 13:58:55,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 87 transitions, 542 flow [2022-12-13 13:58:55,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 87 transitions, 538 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:58:55,808 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 175 flow [2022-12-13 13:58:55,808 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2022-12-13 13:58:55,808 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 2 predicate places. [2022-12-13 13:58:55,808 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 175 flow [2022-12-13 13:58:55,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 139.5) internal successors, (558), 4 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:55,809 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:55,809 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:55,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-12-13 13:58:56,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:56,010 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:56,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:56,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1724924591, now seen corresponding path program 3 times [2022-12-13 13:58:56,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:58:56,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731956530] [2022-12-13 13:58:56,012 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 13:58:56,013 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:56,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:58:56,015 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:58:56,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-13 13:58:56,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-12-13 13:58:56,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:58:56,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 13:58:56,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:58:56,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:56,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:58:56,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:58:56,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731956530] [2022-12-13 13:58:56,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731956530] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:56,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:56,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:58:56,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107625927] [2022-12-13 13:58:56,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:56,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:58:56,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:58:56,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:58:56,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:58:56,175 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 298 [2022-12-13 13:58:56,176 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 175 flow. Second operand has 4 states, 4 states have (on average 139.5) internal successors, (558), 4 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:56,176 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:56,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 298 [2022-12-13 13:58:56,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:56,523 INFO L130 PetriNetUnfolder]: 1592/2674 cut-off events. [2022-12-13 13:58:56,523 INFO L131 PetriNetUnfolder]: For 2741/2741 co-relation queries the response was YES. [2022-12-13 13:58:56,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8097 conditions, 2674 events. 1592/2674 cut-off events. For 2741/2741 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 15564 event pairs, 228 based on Foata normal form. 1/2655 useless extension candidates. Maximal degree in co-relation 8086. Up to 1371 conditions per place. [2022-12-13 13:58:56,531 INFO L137 encePairwiseOnDemand]: 295/298 looper letters, 83 selfloop transitions, 2 changer transitions 0/89 dead transitions. [2022-12-13 13:58:56,531 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 89 transitions, 558 flow [2022-12-13 13:58:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:58:56,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 13:58:56,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 590 transitions. [2022-12-13 13:58:56,533 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4949664429530201 [2022-12-13 13:58:56,533 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 590 transitions. [2022-12-13 13:58:56,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 590 transitions. [2022-12-13 13:58:56,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:56,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 590 transitions. [2022-12-13 13:58:56,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 147.5) internal successors, (590), 4 states have internal predecessors, (590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:56,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 298.0) internal successors, (1490), 5 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:56,535 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 298.0) internal successors, (1490), 5 states have internal predecessors, (1490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:56,535 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 175 flow. Second operand 4 states and 590 transitions. [2022-12-13 13:58:56,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 89 transitions, 558 flow [2022-12-13 13:58:56,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 89 transitions, 556 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:58:56,557 INFO L231 Difference]: Finished difference. Result has 56 places, 42 transitions, 187 flow [2022-12-13 13:58:56,557 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=187, PETRI_PLACES=56, PETRI_TRANSITIONS=42} [2022-12-13 13:58:56,557 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 6 predicate places. [2022-12-13 13:58:56,557 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 42 transitions, 187 flow [2022-12-13 13:58:56,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 139.5) internal successors, (558), 4 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:56,558 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:56,558 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:56,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-12-13 13:58:56,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:56,759 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:56,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:56,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1470323335, now seen corresponding path program 4 times [2022-12-13 13:58:56,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:58:56,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608226657] [2022-12-13 13:58:56,760 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 13:58:56,761 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:56,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:58:56,762 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:58:56,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-13 13:58:56,936 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 13:58:56,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:58:56,940 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 13:58:56,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:58:57,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:58:57,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:58:57,074 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:58:57,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608226657] [2022-12-13 13:58:57,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608226657] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:58:57,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:58:57,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:58:57,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569913412] [2022-12-13 13:58:57,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:58:57,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:58:57,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:58:57,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:58:57,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:58:57,096 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 298 [2022-12-13 13:58:57,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 42 transitions, 187 flow. Second operand has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:57,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:58:57,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 298 [2022-12-13 13:58:57,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:58:57,497 INFO L130 PetriNetUnfolder]: 1459/2607 cut-off events. [2022-12-13 13:58:57,498 INFO L131 PetriNetUnfolder]: For 3301/3301 co-relation queries the response was YES. [2022-12-13 13:58:57,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8398 conditions, 2607 events. 1459/2607 cut-off events. For 3301/3301 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 16431 event pairs, 371 based on Foata normal form. 1/2560 useless extension candidates. Maximal degree in co-relation 8385. Up to 792 conditions per place. [2022-12-13 13:58:57,508 INFO L137 encePairwiseOnDemand]: 292/298 looper letters, 80 selfloop transitions, 6 changer transitions 0/92 dead transitions. [2022-12-13 13:58:57,508 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 92 transitions, 618 flow [2022-12-13 13:58:57,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:58:57,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 13:58:57,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 972 transitions. [2022-12-13 13:58:57,510 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46596356663470756 [2022-12-13 13:58:57,510 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 972 transitions. [2022-12-13 13:58:57,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 972 transitions. [2022-12-13 13:58:57,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:58:57,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 972 transitions. [2022-12-13 13:58:57,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 138.85714285714286) internal successors, (972), 7 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:57,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 298.0) internal successors, (2384), 8 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:57,513 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 298.0) internal successors, (2384), 8 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:57,514 INFO L175 Difference]: Start difference. First operand has 56 places, 42 transitions, 187 flow. Second operand 7 states and 972 transitions. [2022-12-13 13:58:57,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 92 transitions, 618 flow [2022-12-13 13:58:57,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 92 transitions, 614 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 13:58:57,539 INFO L231 Difference]: Finished difference. Result has 63 places, 44 transitions, 210 flow [2022-12-13 13:58:57,539 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=298, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=210, PETRI_PLACES=63, PETRI_TRANSITIONS=44} [2022-12-13 13:58:57,539 INFO L288 CegarLoopForPetriNet]: 50 programPoint places, 13 predicate places. [2022-12-13 13:58:57,540 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 210 flow [2022-12-13 13:58:57,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.5) internal successors, (813), 6 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:58:57,540 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:58:57,540 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:57,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-12-13 13:58:57,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:57,741 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [P3Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 13 more)] === [2022-12-13 13:58:57,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:58:57,742 INFO L85 PathProgramCache]: Analyzing trace with hash -334693259, now seen corresponding path program 5 times [2022-12-13 13:58:57,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:58:57,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296170379] [2022-12-13 13:58:57,742 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 13:58:57,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:57,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:58:57,743 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 13:58:57,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-13 13:58:57,851 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 13:58:57,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-12-13 13:58:57,851 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:58:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:58:57,961 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 13:58:57,961 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:58:57,962 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (15 of 16 remaining) [2022-12-13 13:58:57,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (14 of 16 remaining) [2022-12-13 13:58:57,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 16 remaining) [2022-12-13 13:58:57,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 16 remaining) [2022-12-13 13:58:57,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 16 remaining) [2022-12-13 13:58:57,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 16 remaining) [2022-12-13 13:58:57,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 16 remaining) [2022-12-13 13:58:57,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 16 remaining) [2022-12-13 13:58:57,963 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 16 remaining) [2022-12-13 13:58:57,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 16 remaining) [2022-12-13 13:58:57,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (5 of 16 remaining) [2022-12-13 13:58:57,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2022-12-13 13:58:57,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 16 remaining) [2022-12-13 13:58:57,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 16 remaining) [2022-12-13 13:58:57,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 16 remaining) [2022-12-13 13:58:57,964 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P3Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 16 remaining) [2022-12-13 13:58:57,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-12-13 13:58:58,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 13:58:58,165 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1] [2022-12-13 13:58:58,170 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 13:58:58,170 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:58:58,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:58:58 BasicIcfg [2022-12-13 13:58:58,235 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:58:58,236 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:58:58,236 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:58:58,236 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:58:58,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:58:42" (3/4) ... [2022-12-13 13:58:58,239 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:58:58,239 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:58:58,240 INFO L158 Benchmark]: Toolchain (without parser) took 17156.75ms. Allocated memory was 71.3MB in the beginning and 429.9MB in the end (delta: 358.6MB). Free memory was 45.0MB in the beginning and 346.8MB in the end (delta: -301.7MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. [2022-12-13 13:58:58,240 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 32.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:58:58,240 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.51ms. Allocated memory is still 71.3MB. Free memory was 44.7MB in the beginning and 32.2MB in the end (delta: 12.5MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2022-12-13 13:58:58,241 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.21ms. Allocated memory is still 71.3MB. Free memory was 32.2MB in the beginning and 49.2MB in the end (delta: -17.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 13:58:58,241 INFO L158 Benchmark]: Boogie Preprocessor took 21.22ms. Allocated memory is still 71.3MB. Free memory was 49.2MB in the beginning and 47.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:58:58,242 INFO L158 Benchmark]: RCFGBuilder took 610.42ms. Allocated memory is still 71.3MB. Free memory was 47.1MB in the beginning and 47.4MB in the end (delta: -273.6kB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2022-12-13 13:58:58,242 INFO L158 Benchmark]: TraceAbstraction took 16094.99ms. Allocated memory was 71.3MB in the beginning and 429.9MB in the end (delta: 358.6MB). Free memory was 47.0MB in the beginning and 346.8MB in the end (delta: -299.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-12-13 13:58:58,242 INFO L158 Benchmark]: Witness Printer took 3.34ms. Allocated memory is still 429.9MB. Free memory is still 346.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:58:58,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 32.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.51ms. Allocated memory is still 71.3MB. Free memory was 44.7MB in the beginning and 32.2MB in the end (delta: 12.5MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.21ms. Allocated memory is still 71.3MB. Free memory was 32.2MB in the beginning and 49.2MB in the end (delta: -17.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.22ms. Allocated memory is still 71.3MB. Free memory was 49.2MB in the beginning and 47.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 610.42ms. Allocated memory is still 71.3MB. Free memory was 47.1MB in the beginning and 47.4MB in the end (delta: -273.6kB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * TraceAbstraction took 16094.99ms. Allocated memory was 71.3MB in the beginning and 429.9MB in the end (delta: 358.6MB). Free memory was 47.0MB in the beginning and 346.8MB in the end (delta: -299.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 3.34ms. Allocated memory is still 429.9MB. Free memory is still 346.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.5s, 157 PlacesBefore, 50 PlacesAfterwards, 146 TransitionsBefore, 38 TransitionsAfterwards, 3352 CoEnabledTransitionPairs, 7 FixpointIterations, 57 TrivialSequentialCompositions, 82 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 148 TotalNumberOfCompositions, 8083 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4145, independent: 3947, independent conditional: 0, independent unconditional: 3947, dependent: 198, dependent conditional: 0, dependent unconditional: 198, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1853, independent: 1814, independent conditional: 0, independent unconditional: 1814, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4145, independent: 2133, independent conditional: 0, independent unconditional: 2133, dependent: 159, dependent conditional: 0, dependent unconditional: 159, unknown: 1853, unknown conditional: 0, unknown unconditional: 1853] , Statistics on independence cache: Total cache size (in pairs): 168, Positive cache size: 150, Positive conditional cache size: 0, Positive unconditional cache size: 150, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L716] 0 int __unbuffered_p3_EAX = 0; [L718] 0 int __unbuffered_p3_EBX = 0; [L720] 0 int a = 0; [L722] 0 int b = 0; [L723] 0 _Bool main$tmp_guard0; [L724] 0 _Bool main$tmp_guard1; [L726] 0 int x = 0; [L728] 0 int y = 0; [L730] 0 int z = 0; [L731] 0 _Bool z$flush_delayed; [L732] 0 int z$mem_tmp; [L733] 0 _Bool z$r_buff0_thd0; [L734] 0 _Bool z$r_buff0_thd1; [L735] 0 _Bool z$r_buff0_thd2; [L736] 0 _Bool z$r_buff0_thd3; [L737] 0 _Bool z$r_buff0_thd4; [L738] 0 _Bool z$r_buff1_thd0; [L739] 0 _Bool z$r_buff1_thd1; [L740] 0 _Bool z$r_buff1_thd2; [L741] 0 _Bool z$r_buff1_thd3; [L742] 0 _Bool z$r_buff1_thd4; [L743] 0 _Bool z$read_delayed; [L744] 0 int *z$read_delayed_var; [L745] 0 int z$w_buff0; [L746] 0 _Bool z$w_buff0_used; [L747] 0 int z$w_buff1; [L748] 0 _Bool z$w_buff1_used; [L749] 0 _Bool weak$$choice0; [L750] 0 _Bool weak$$choice2; [L856] 0 pthread_t t1029; [L857] FCALL, FORK 0 pthread_create(&t1029, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1029, ((void *)0), P0, ((void *)0))=0, t1029={11:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L858] 0 pthread_t t1030; [L859] FCALL, FORK 0 pthread_create(&t1030, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1030, ((void *)0), P1, ((void *)0))=1, t1029={11:0}, t1030={15:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L860] 0 pthread_t t1031; [L861] FCALL, FORK 0 pthread_create(&t1031, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1031, ((void *)0), P2, ((void *)0))=2, t1029={11:0}, t1030={15:0}, t1031={7:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L862] 0 pthread_t t1032; [L863] FCALL, FORK 0 pthread_create(&t1032, ((void *)0), P3, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=0, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1032, ((void *)0), P3, ((void *)0))=3, t1029={11:0}, t1030={15:0}, t1031={7:0}, t1032={-2147483637:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L812] 4 z$w_buff1 = z$w_buff0 [L813] 4 z$w_buff0 = 1 [L814] 4 z$w_buff1_used = z$w_buff0_used [L815] 4 z$w_buff0_used = (_Bool)1 [L816] CALL 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 4 !(!expression) [L816] RET 4 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L817] 4 z$r_buff1_thd0 = z$r_buff0_thd0 [L818] 4 z$r_buff1_thd1 = z$r_buff0_thd1 [L819] 4 z$r_buff1_thd2 = z$r_buff0_thd2 [L820] 4 z$r_buff1_thd3 = z$r_buff0_thd3 [L821] 4 z$r_buff1_thd4 = z$r_buff0_thd4 [L822] 4 z$r_buff0_thd4 = (_Bool)1 [L825] 4 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L828] 4 __unbuffered_p3_EAX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L831] 4 __unbuffered_p3_EBX = b VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L754] 1 b = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L757] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L769] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L772] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L784] 3 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L762] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L764] 1 return 0; [L787] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L788] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L789] 3 z$flush_delayed = weak$$choice2 [L790] 3 z$mem_tmp = z [L791] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L792] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L793] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L794] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L795] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L796] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L797] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L798] 3 __unbuffered_p2_EAX = z [L799] 3 z = z$flush_delayed ? z$mem_tmp : z [L800] 3 z$flush_delayed = (_Bool)0 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=2, z=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0] [L777] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L779] 2 return 0; [L805] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L807] 3 return 0; [L834] 4 z = z$w_buff0_used && z$r_buff0_thd4 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd4 ? z$w_buff1 : z) [L835] 4 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$w_buff0_used [L836] 4 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$w_buff1_used [L837] 4 z$r_buff0_thd4 = z$w_buff0_used && z$r_buff0_thd4 ? (_Bool)0 : z$r_buff0_thd4 [L838] 4 z$r_buff1_thd4 = z$w_buff0_used && z$r_buff0_thd4 || z$w_buff1_used && z$r_buff1_thd4 ? (_Bool)0 : z$r_buff1_thd4 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L841] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L843] 4 return 0; [L865] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L867] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L867] RET 0 assume_abort_if_not(main$tmp_guard0) [L869] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L870] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L871] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L872] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L873] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, main$tmp_guard0=1, main$tmp_guard1=0, t1029={11:0}, t1030={15:0}, t1031={7:0}, t1032={-2147483637:0}, weak$$choice0=2, weak$$choice2=0, x=1, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] [L876] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p2_EAX == 0 && __unbuffered_p3_EAX == 1 && __unbuffered_p3_EBX == 0) [L878] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=1, __unbuffered_p3_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, b=1, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=1, y=2, z=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff0_thd4=1, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$r_buff1_thd4=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 854]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 861]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 857]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 863]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 859]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 185 locations, 16 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.9s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 359 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 307 mSDsluCounter, 85 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 65 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1507 IncrementalHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 20 mSDtfsCounter, 1507 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=5, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 560 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1454 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 13:58:58,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_204b7683-eb9f-4b6c-a8e8-41ce16024b88/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample