./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe015_power.oepc.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_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe015_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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_a34279f4-587b-4c39-a22f-189577a3e3cf/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 1568f4b0615eb98ed6bee584aeda19485d9df0ed08c84a8233a5817e939c5388 --- 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 21:06:17,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:06:17,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:06:17,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:06:17,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:06:17,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:06:17,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:06:17,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:06:17,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:06:17,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:06:17,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:06:17,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:06:17,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:06:17,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:06:17,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:06:17,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:06:17,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:06:17,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:06:17,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:06:17,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:06:17,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:06:17,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:06:17,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:06:17,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:06:17,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:06:17,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:06:17,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:06:17,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:06:17,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:06:17,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:06:17,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:06:17,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:06:17,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:06:17,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:06:17,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:06:17,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:06:17,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:06:17,789 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:06:17,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:06:17,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:06:17,790 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:06:17,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 21:06:17,805 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:06:17,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:06:17,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:06:17,805 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:06:17,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:06:17,806 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:06:17,806 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:06:17,806 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:06:17,806 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:06:17,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:06:17,807 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:06:17,807 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:06:17,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:06:17,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:06:17,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:06:17,807 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 21:06:17,808 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 21:06:17,808 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 21:06:17,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:06:17,808 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 21:06:17,808 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:06:17,808 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:06:17,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:06:17,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:06:17,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:06:17,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:06:17,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:06:17,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:06:17,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:06:17,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:06:17,810 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:06:17,810 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:06:17,810 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:06:17,810 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:06:17,810 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_a34279f4-587b-4c39-a22f-189577a3e3cf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1568f4b0615eb98ed6bee584aeda19485d9df0ed08c84a8233a5817e939c5388 [2022-12-13 21:06:17,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:06:17,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:06:17,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:06:17,982 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:06:17,982 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:06:17,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/safe015_power.oepc.i [2022-12-13 21:06:20,566 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:06:20,782 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:06:20,783 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/sv-benchmarks/c/pthread-wmm/safe015_power.oepc.i [2022-12-13 21:06:20,795 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/data/f85bead0e/87e433ab0bc14a9d915477aea109125b/FLAG1ecbec496 [2022-12-13 21:06:21,147 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/data/f85bead0e/87e433ab0bc14a9d915477aea109125b [2022-12-13 21:06:21,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:06:21,153 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:06:21,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:06:21,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:06:21,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:06:21,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:06:21" (1/1) ... [2022-12-13 21:06:21,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5130cf01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:21, skipping insertion in model container [2022-12-13 21:06:21,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:06:21" (1/1) ... [2022-12-13 21:06:21,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:06:21,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:06:21,306 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_a34279f4-587b-4c39-a22f-189577a3e3cf/sv-benchmarks/c/pthread-wmm/safe015_power.oepc.i[995,1008] [2022-12-13 21:06:21,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,420 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,421 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,423 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,424 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,426 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,427 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,428 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,445 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,446 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,447 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,448 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,454 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:06:21,463 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:06:21,471 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_a34279f4-587b-4c39-a22f-189577a3e3cf/sv-benchmarks/c/pthread-wmm/safe015_power.oepc.i[995,1008] [2022-12-13 21:06:21,488 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,488 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,488 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,488 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,488 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,493 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,494 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,494 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,495 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,496 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,498 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,499 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,500 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,507 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,509 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,512 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,513 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,514 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:06:21,519 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:06:21,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:06:21,542 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:06:21,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:21 WrapperNode [2022-12-13 21:06:21,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:06:21,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:06:21,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:06:21,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:06:21,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:21" (1/1) ... [2022-12-13 21:06:21,560 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:21" (1/1) ... [2022-12-13 21:06:21,579 INFO L138 Inliner]: procedures = 176, calls = 86, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 225 [2022-12-13 21:06:21,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:06:21,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:06:21,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:06:21,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:06:21,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:21" (1/1) ... [2022-12-13 21:06:21,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:21" (1/1) ... [2022-12-13 21:06:21,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:21" (1/1) ... [2022-12-13 21:06:21,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:21" (1/1) ... [2022-12-13 21:06:21,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:21" (1/1) ... [2022-12-13 21:06:21,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:21" (1/1) ... [2022-12-13 21:06:21,602 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:21" (1/1) ... [2022-12-13 21:06:21,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:21" (1/1) ... [2022-12-13 21:06:21,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:06:21,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:06:21,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:06:21,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:06:21,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:21" (1/1) ... [2022-12-13 21:06:21,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:06:21,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:06:21,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:06:21,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:06:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 21:06:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 21:06:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 21:06:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:06:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:06:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:06:21,666 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 21:06:21,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 21:06:21,667 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 21:06:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 21:06:21,667 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 21:06:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 21:06:21,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:06:21,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 21:06:21,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:06:21,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:06:21,668 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 21:06:21,777 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:06:21,778 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:06:22,254 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:06:22,929 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:06:22,930 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:06:22,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:06:22 BoogieIcfgContainer [2022-12-13 21:06:22,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:06:22,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:06:22,935 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:06:22,938 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:06:22,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:06:21" (1/3) ... [2022-12-13 21:06:22,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c3e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:06:22, skipping insertion in model container [2022-12-13 21:06:22,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:21" (2/3) ... [2022-12-13 21:06:22,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c3e07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:06:22, skipping insertion in model container [2022-12-13 21:06:22,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:06:22" (3/3) ... [2022-12-13 21:06:22,941 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_power.oepc.i [2022-12-13 21:06:22,961 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:06:22,961 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2022-12-13 21:06:22,961 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 21:06:23,078 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 21:06:23,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 205 places, 197 transitions, 409 flow [2022-12-13 21:06:23,212 INFO L130 PetriNetUnfolder]: 2/194 cut-off events. [2022-12-13 21:06:23,212 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:06:23,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 194 events. 2/194 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 355 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 134. Up to 2 conditions per place. [2022-12-13 21:06:23,219 INFO L82 GeneralOperation]: Start removeDead. Operand has 205 places, 197 transitions, 409 flow [2022-12-13 21:06:23,225 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 202 places, 194 transitions, 397 flow [2022-12-13 21:06:23,228 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 21:06:23,238 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 202 places, 194 transitions, 397 flow [2022-12-13 21:06:23,241 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 202 places, 194 transitions, 397 flow [2022-12-13 21:06:23,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 194 transitions, 397 flow [2022-12-13 21:06:23,294 INFO L130 PetriNetUnfolder]: 2/194 cut-off events. [2022-12-13 21:06:23,294 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:06:23,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 194 events. 2/194 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 355 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 134. Up to 2 conditions per place. [2022-12-13 21:06:23,298 INFO L119 LiptonReduction]: Number of co-enabled transitions 9288 [2022-12-13 21:06:44,829 INFO L134 LiptonReduction]: Checked pairs total: 65178 [2022-12-13 21:06:44,829 INFO L136 LiptonReduction]: Total number of compositions: 149 [2022-12-13 21:06:44,842 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:06:44,848 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;@3a8ed5a5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:06:44,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2022-12-13 21:06:44,850 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 21:06:44,850 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:06:44,850 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:06:44,851 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 21:06:44,851 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-13 21:06:44,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:44,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1415, now seen corresponding path program 1 times [2022-12-13 21:06:44,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:44,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262877306] [2022-12-13 21:06:44,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:44,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:44,943 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 21:06:44,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:44,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262877306] [2022-12-13 21:06:44,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262877306] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:44,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:44,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 21:06:44,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910961498] [2022-12-13 21:06:44,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:44,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 21:06:44,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:44,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 21:06:44,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:06:44,969 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 346 [2022-12-13 21:06:44,970 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 91 transitions, 191 flow. Second operand has 2 states, 2 states have (on average 127.5) internal successors, (255), 2 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:44,970 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:06:44,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 346 [2022-12-13 21:06:44,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:06:50,959 INFO L130 PetriNetUnfolder]: 29349/41512 cut-off events. [2022-12-13 21:06:50,959 INFO L131 PetriNetUnfolder]: For 37/37 co-relation queries the response was YES. [2022-12-13 21:06:50,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82449 conditions, 41512 events. 29349/41512 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 3187. Compared 289963 event pairs, 29349 based on Foata normal form. 660/17744 useless extension candidates. Maximal degree in co-relation 82438. Up to 40787 conditions per place. [2022-12-13 21:06:51,125 INFO L137 encePairwiseOnDemand]: 305/346 looper letters, 48 selfloop transitions, 0 changer transitions 0/50 dead transitions. [2022-12-13 21:06:51,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 50 transitions, 205 flow [2022-12-13 21:06:51,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:06:51,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 21:06:51,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 343 transitions. [2022-12-13 21:06:51,135 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4956647398843931 [2022-12-13 21:06:51,136 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 343 transitions. [2022-12-13 21:06:51,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 343 transitions. [2022-12-13 21:06:51,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:06:51,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 343 transitions. [2022-12-13 21:06:51,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 171.5) internal successors, (343), 2 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:51,144 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 346.0) internal successors, (1038), 3 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:51,144 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 346.0) internal successors, (1038), 3 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:51,145 INFO L175 Difference]: Start difference. First operand has 100 places, 91 transitions, 191 flow. Second operand 2 states and 343 transitions. [2022-12-13 21:06:51,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 50 transitions, 205 flow [2022-12-13 21:06:51,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 50 transitions, 202 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 21:06:51,151 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 106 flow [2022-12-13 21:06:51,152 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=106, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2022-12-13 21:06:51,155 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, -42 predicate places. [2022-12-13 21:06:51,155 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 106 flow [2022-12-13 21:06:51,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 127.5) internal successors, (255), 2 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:51,155 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:06:51,155 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 21:06:51,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:06:51,156 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-13 21:06:51,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:51,156 INFO L85 PathProgramCache]: Analyzing trace with hash 43352691, now seen corresponding path program 1 times [2022-12-13 21:06:51,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:51,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066598962] [2022-12-13 21:06:51,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:51,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:51,295 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 21:06:51,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:51,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066598962] [2022-12-13 21:06:51,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066598962] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:51,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:51,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 21:06:51,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141241721] [2022-12-13 21:06:51,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:51,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:06:51,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:51,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:06:51,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:06:51,328 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 346 [2022-12-13 21:06:51,328 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:51,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:06:51,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 346 [2022-12-13 21:06:51,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:06:55,186 INFO L130 PetriNetUnfolder]: 18775/27305 cut-off events. [2022-12-13 21:06:55,186 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:06:55,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54361 conditions, 27305 events. 18775/27305 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1625. Compared 184273 event pairs, 12475 based on Foata normal form. 0/14565 useless extension candidates. Maximal degree in co-relation 54358. Up to 17448 conditions per place. [2022-12-13 21:06:55,268 INFO L137 encePairwiseOnDemand]: 328/346 looper letters, 58 selfloop transitions, 9 changer transitions 0/68 dead transitions. [2022-12-13 21:06:55,269 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 68 transitions, 276 flow [2022-12-13 21:06:55,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:06:55,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:06:55,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2022-12-13 21:06:55,271 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42870905587668595 [2022-12-13 21:06:55,271 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 445 transitions. [2022-12-13 21:06:55,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 445 transitions. [2022-12-13 21:06:55,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:06:55,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 445 transitions. [2022-12-13 21:06:55,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:55,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:55,274 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:55,274 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 106 flow. Second operand 3 states and 445 transitions. [2022-12-13 21:06:55,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 68 transitions, 276 flow [2022-12-13 21:06:55,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 68 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 21:06:55,276 INFO L231 Difference]: Finished difference. Result has 59 places, 54 transitions, 176 flow [2022-12-13 21:06:55,276 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=176, PETRI_PLACES=59, PETRI_TRANSITIONS=54} [2022-12-13 21:06:55,276 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, -41 predicate places. [2022-12-13 21:06:55,276 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 54 transitions, 176 flow [2022-12-13 21:06:55,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:55,277 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:06:55,277 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 21:06:55,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:06:55,277 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-13 21:06:55,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:55,278 INFO L85 PathProgramCache]: Analyzing trace with hash 43352692, now seen corresponding path program 1 times [2022-12-13 21:06:55,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:55,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850403790] [2022-12-13 21:06:55,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:55,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:55,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:06:55,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:55,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850403790] [2022-12-13 21:06:55,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850403790] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:55,400 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:55,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 21:06:55,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772896537] [2022-12-13 21:06:55,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:55,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:06:55,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:55,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:06:55,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:06:55,425 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 346 [2022-12-13 21:06:55,426 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 54 transitions, 176 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:55,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:06:55,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 346 [2022-12-13 21:06:55,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:06:56,877 INFO L130 PetriNetUnfolder]: 6241/9626 cut-off events. [2022-12-13 21:06:56,878 INFO L131 PetriNetUnfolder]: For 2590/2590 co-relation queries the response was YES. [2022-12-13 21:06:56,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24925 conditions, 9626 events. 6241/9626 cut-off events. For 2590/2590 co-relation queries the response was YES. Maximal size of possible extension queue 650. Compared 61014 event pairs, 5133 based on Foata normal form. 1965/9489 useless extension candidates. Maximal degree in co-relation 24920. Up to 8965 conditions per place. [2022-12-13 21:06:56,907 INFO L137 encePairwiseOnDemand]: 336/346 looper letters, 41 selfloop transitions, 1 changer transitions 0/45 dead transitions. [2022-12-13 21:06:56,908 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 45 transitions, 242 flow [2022-12-13 21:06:56,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:06:56,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:06:56,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 423 transitions. [2022-12-13 21:06:56,910 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.407514450867052 [2022-12-13 21:06:56,910 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 423 transitions. [2022-12-13 21:06:56,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 423 transitions. [2022-12-13 21:06:56,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:06:56,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 423 transitions. [2022-12-13 21:06:56,911 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 141.0) internal successors, (423), 3 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:56,912 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:56,913 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:56,913 INFO L175 Difference]: Start difference. First operand has 59 places, 54 transitions, 176 flow. Second operand 3 states and 423 transitions. [2022-12-13 21:06:56,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 45 transitions, 242 flow [2022-12-13 21:06:56,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 45 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 21:06:56,927 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 142 flow [2022-12-13 21:06:56,928 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2022-12-13 21:06:56,928 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, -50 predicate places. [2022-12-13 21:06:56,928 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 142 flow [2022-12-13 21:06:56,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:56,929 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:06:56,929 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 21:06:56,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 21:06:56,929 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-13 21:06:56,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:56,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1285070038, now seen corresponding path program 1 times [2022-12-13 21:06:56,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:56,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430494228] [2022-12-13 21:06:56,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:56,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:57,013 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 21:06:57,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:57,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430494228] [2022-12-13 21:06:57,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430494228] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:57,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:57,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 21:06:57,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34294860] [2022-12-13 21:06:57,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:57,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:06:57,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:57,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:06:57,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:06:57,016 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 346 [2022-12-13 21:06:57,016 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:57,017 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:06:57,017 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 346 [2022-12-13 21:06:57,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:06:58,343 INFO L130 PetriNetUnfolder]: 5342/8171 cut-off events. [2022-12-13 21:06:58,343 INFO L131 PetriNetUnfolder]: For 1218/1234 co-relation queries the response was YES. [2022-12-13 21:06:58,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20304 conditions, 8171 events. 5342/8171 cut-off events. For 1218/1234 co-relation queries the response was YES. Maximal size of possible extension queue 558. Compared 51741 event pairs, 1407 based on Foata normal form. 0/5879 useless extension candidates. Maximal degree in co-relation 20299. Up to 7046 conditions per place. [2022-12-13 21:06:58,370 INFO L137 encePairwiseOnDemand]: 343/346 looper letters, 67 selfloop transitions, 2 changer transitions 0/72 dead transitions. [2022-12-13 21:06:58,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 72 transitions, 366 flow [2022-12-13 21:06:58,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:06:58,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:06:58,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2022-12-13 21:06:58,372 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4210019267822736 [2022-12-13 21:06:58,372 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2022-12-13 21:06:58,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2022-12-13 21:06:58,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:06:58,372 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2022-12-13 21:06:58,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:58,374 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:58,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 346.0) internal successors, (1384), 4 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:58,374 INFO L175 Difference]: Start difference. First operand has 50 places, 45 transitions, 142 flow. Second operand 3 states and 437 transitions. [2022-12-13 21:06:58,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 72 transitions, 366 flow [2022-12-13 21:06:58,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 72 transitions, 365 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 21:06:58,376 INFO L231 Difference]: Finished difference. Result has 50 places, 44 transitions, 143 flow [2022-12-13 21:06:58,376 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=346, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=50, PETRI_TRANSITIONS=44} [2022-12-13 21:06:58,377 INFO L288 CegarLoopForPetriNet]: 100 programPoint places, -50 predicate places. [2022-12-13 21:06:58,377 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 44 transitions, 143 flow [2022-12-13 21:06:58,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:06:58,377 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:06:58,377 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:06:58,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 21:06:58,377 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-13 21:06:58,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:58,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1182464289, now seen corresponding path program 1 times [2022-12-13 21:06:58,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:58,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13143375] [2022-12-13 21:06:58,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:58,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:06:58,390 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:06:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:06:58,414 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:06:58,414 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:06:58,415 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (104 of 105 remaining) [2022-12-13 21:06:58,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (103 of 105 remaining) [2022-12-13 21:06:58,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (102 of 105 remaining) [2022-12-13 21:06:58,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (101 of 105 remaining) [2022-12-13 21:06:58,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (100 of 105 remaining) [2022-12-13 21:06:58,416 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (99 of 105 remaining) [2022-12-13 21:06:58,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (98 of 105 remaining) [2022-12-13 21:06:58,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (97 of 105 remaining) [2022-12-13 21:06:58,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (96 of 105 remaining) [2022-12-13 21:06:58,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (95 of 105 remaining) [2022-12-13 21:06:58,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (94 of 105 remaining) [2022-12-13 21:06:58,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (93 of 105 remaining) [2022-12-13 21:06:58,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (92 of 105 remaining) [2022-12-13 21:06:58,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (91 of 105 remaining) [2022-12-13 21:06:58,417 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (90 of 105 remaining) [2022-12-13 21:06:58,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (89 of 105 remaining) [2022-12-13 21:06:58,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (88 of 105 remaining) [2022-12-13 21:06:58,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (87 of 105 remaining) [2022-12-13 21:06:58,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (86 of 105 remaining) [2022-12-13 21:06:58,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 105 remaining) [2022-12-13 21:06:58,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (84 of 105 remaining) [2022-12-13 21:06:58,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (83 of 105 remaining) [2022-12-13 21:06:58,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (82 of 105 remaining) [2022-12-13 21:06:58,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (81 of 105 remaining) [2022-12-13 21:06:58,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 105 remaining) [2022-12-13 21:06:58,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 105 remaining) [2022-12-13 21:06:58,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 105 remaining) [2022-12-13 21:06:58,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 105 remaining) [2022-12-13 21:06:58,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 105 remaining) [2022-12-13 21:06:58,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 105 remaining) [2022-12-13 21:06:58,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 105 remaining) [2022-12-13 21:06:58,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 105 remaining) [2022-12-13 21:06:58,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 105 remaining) [2022-12-13 21:06:58,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 105 remaining) [2022-12-13 21:06:58,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 105 remaining) [2022-12-13 21:06:58,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 105 remaining) [2022-12-13 21:06:58,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 105 remaining) [2022-12-13 21:06:58,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 105 remaining) [2022-12-13 21:06:58,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 105 remaining) [2022-12-13 21:06:58,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 105 remaining) [2022-12-13 21:06:58,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 105 remaining) [2022-12-13 21:06:58,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 105 remaining) [2022-12-13 21:06:58,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 105 remaining) [2022-12-13 21:06:58,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 105 remaining) [2022-12-13 21:06:58,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 105 remaining) [2022-12-13 21:06:58,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 105 remaining) [2022-12-13 21:06:58,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 105 remaining) [2022-12-13 21:06:58,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 105 remaining) [2022-12-13 21:06:58,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 105 remaining) [2022-12-13 21:06:58,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 105 remaining) [2022-12-13 21:06:58,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 105 remaining) [2022-12-13 21:06:58,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 105 remaining) [2022-12-13 21:06:58,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 105 remaining) [2022-12-13 21:06:58,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 105 remaining) [2022-12-13 21:06:58,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 105 remaining) [2022-12-13 21:06:58,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 105 remaining) [2022-12-13 21:06:58,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 105 remaining) [2022-12-13 21:06:58,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 105 remaining) [2022-12-13 21:06:58,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 105 remaining) [2022-12-13 21:06:58,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 105 remaining) [2022-12-13 21:06:58,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 105 remaining) [2022-12-13 21:06:58,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 105 remaining) [2022-12-13 21:06:58,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 105 remaining) [2022-12-13 21:06:58,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (41 of 105 remaining) [2022-12-13 21:06:58,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK (40 of 105 remaining) [2022-12-13 21:06:58,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 105 remaining) [2022-12-13 21:06:58,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 105 remaining) [2022-12-13 21:06:58,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 105 remaining) [2022-12-13 21:06:58,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 105 remaining) [2022-12-13 21:06:58,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 105 remaining) [2022-12-13 21:06:58,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 105 remaining) [2022-12-13 21:06:58,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 105 remaining) [2022-12-13 21:06:58,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 105 remaining) [2022-12-13 21:06:58,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 105 remaining) [2022-12-13 21:06:58,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 105 remaining) [2022-12-13 21:06:58,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 105 remaining) [2022-12-13 21:06:58,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 105 remaining) [2022-12-13 21:06:58,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 105 remaining) [2022-12-13 21:06:58,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 105 remaining) [2022-12-13 21:06:58,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 105 remaining) [2022-12-13 21:06:58,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (24 of 105 remaining) [2022-12-13 21:06:58,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 105 remaining) [2022-12-13 21:06:58,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 105 remaining) [2022-12-13 21:06:58,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 105 remaining) [2022-12-13 21:06:58,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 105 remaining) [2022-12-13 21:06:58,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 105 remaining) [2022-12-13 21:06:58,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 105 remaining) [2022-12-13 21:06:58,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 105 remaining) [2022-12-13 21:06:58,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 105 remaining) [2022-12-13 21:06:58,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 105 remaining) [2022-12-13 21:06:58,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 105 remaining) [2022-12-13 21:06:58,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 105 remaining) [2022-12-13 21:06:58,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 105 remaining) [2022-12-13 21:06:58,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 105 remaining) [2022-12-13 21:06:58,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 105 remaining) [2022-12-13 21:06:58,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 105 remaining) [2022-12-13 21:06:58,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 105 remaining) [2022-12-13 21:06:58,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 105 remaining) [2022-12-13 21:06:58,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 105 remaining) [2022-12-13 21:06:58,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 105 remaining) [2022-12-13 21:06:58,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 105 remaining) [2022-12-13 21:06:58,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 105 remaining) [2022-12-13 21:06:58,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 105 remaining) [2022-12-13 21:06:58,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 105 remaining) [2022-12-13 21:06:58,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 105 remaining) [2022-12-13 21:06:58,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 21:06:58,427 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-13 21:06:58,432 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 21:06:58,432 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:06:58,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:06:58 BasicIcfg [2022-12-13 21:06:58,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:06:58,456 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:06:58,456 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:06:58,456 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:06:58,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:06:22" (3/4) ... [2022-12-13 21:06:58,458 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:06:58,458 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:06:58,459 INFO L158 Benchmark]: Toolchain (without parser) took 37305.68ms. Allocated memory was 180.4MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 118.1MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 745.5MB. Max. memory is 16.1GB. [2022-12-13 21:06:58,459 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 104.9MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:06:58,459 INFO L158 Benchmark]: CACSL2BoogieTranslator took 387.37ms. Allocated memory is still 180.4MB. Free memory was 117.9MB in the beginning and 134.9MB in the end (delta: -17.1MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-12-13 21:06:58,459 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.39ms. Allocated memory is still 180.4MB. Free memory was 134.9MB in the beginning and 131.7MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:06:58,460 INFO L158 Benchmark]: Boogie Preprocessor took 27.02ms. Allocated memory is still 180.4MB. Free memory was 131.7MB in the beginning and 129.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:06:58,460 INFO L158 Benchmark]: RCFGBuilder took 1325.11ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 129.2MB in the beginning and 164.2MB in the end (delta: -35.0MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2022-12-13 21:06:58,460 INFO L158 Benchmark]: TraceAbstraction took 35520.86ms. Allocated memory was 218.1MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 164.2MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 750.0MB. Max. memory is 16.1GB. [2022-12-13 21:06:58,460 INFO L158 Benchmark]: Witness Printer took 2.37ms. Allocated memory is still 2.2GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:06:58,462 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 104.9MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 387.37ms. Allocated memory is still 180.4MB. Free memory was 117.9MB in the beginning and 134.9MB in the end (delta: -17.1MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.39ms. Allocated memory is still 180.4MB. Free memory was 134.9MB in the beginning and 131.7MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.02ms. Allocated memory is still 180.4MB. Free memory was 131.7MB in the beginning and 129.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1325.11ms. Allocated memory was 180.4MB in the beginning and 218.1MB in the end (delta: 37.7MB). Free memory was 129.2MB in the beginning and 164.2MB in the end (delta: -35.0MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. * TraceAbstraction took 35520.86ms. Allocated memory was 218.1MB in the beginning and 2.2GB in the end (delta: 1.9GB). Free memory was 164.2MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 750.0MB. Max. memory is 16.1GB. * Witness Printer took 2.37ms. Allocated memory is still 2.2GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.6s, 202 PlacesBefore, 100 PlacesAfterwards, 194 TransitionsBefore, 91 TransitionsAfterwards, 9288 CoEnabledTransitionPairs, 8 FixpointIterations, 66 TrivialSequentialCompositions, 78 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 149 TotalNumberOfCompositions, 65178 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15904, independent: 14919, independent conditional: 0, independent unconditional: 14919, dependent: 985, dependent conditional: 0, dependent unconditional: 985, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3475, independent: 3342, independent conditional: 0, independent unconditional: 3342, dependent: 133, dependent conditional: 0, dependent unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15904, independent: 11577, independent conditional: 0, independent unconditional: 11577, dependent: 852, dependent conditional: 0, dependent unconditional: 852, unknown: 3475, unknown conditional: 0, unknown unconditional: 3475] , Statistics on independence cache: Total cache size (in pairs): 539, Positive cache size: 461, Positive conditional cache size: 0, Positive unconditional cache size: 461, Negative cache size: 78, Negative conditional cache size: 0, Negative unconditional cache size: 78, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L715] 0 _Bool __unbuffered_p2_EAX$flush_delayed; [L716] 0 int __unbuffered_p2_EAX$mem_tmp; [L717] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd0; [L718] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd1; [L719] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd2; [L720] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd3; [L721] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd0; [L722] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd1; [L723] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd2; [L724] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd3; [L725] 0 _Bool __unbuffered_p2_EAX$read_delayed; [L726] 0 int *__unbuffered_p2_EAX$read_delayed_var; [L727] 0 int __unbuffered_p2_EAX$w_buff0; [L728] 0 _Bool __unbuffered_p2_EAX$w_buff0_used; [L729] 0 int __unbuffered_p2_EAX$w_buff1; [L730] 0 _Bool __unbuffered_p2_EAX$w_buff1_used; [L731] 0 _Bool main$tmp_guard0; [L732] 0 _Bool main$tmp_guard1; [L734] 0 int x = 0; [L735] 0 _Bool x$flush_delayed; [L736] 0 int x$mem_tmp; [L737] 0 _Bool x$r_buff0_thd0; [L738] 0 _Bool x$r_buff0_thd1; [L739] 0 _Bool x$r_buff0_thd2; [L740] 0 _Bool x$r_buff0_thd3; [L741] 0 _Bool x$r_buff1_thd0; [L742] 0 _Bool x$r_buff1_thd1; [L743] 0 _Bool x$r_buff1_thd2; [L744] 0 _Bool x$r_buff1_thd3; [L745] 0 _Bool x$read_delayed; [L746] 0 int *x$read_delayed_var; [L747] 0 int x$w_buff0; [L748] 0 _Bool x$w_buff0_used; [L749] 0 int x$w_buff1; [L750] 0 _Bool x$w_buff1_used; [L752] 0 int y = 0; [L753] 0 _Bool weak$$choice0; [L754] 0 _Bool weak$$choice1; [L755] 0 _Bool weak$$choice2; [L871] 0 pthread_t t2121; [L872] FCALL, FORK 0 pthread_create(&t2121, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2121, ((void *)0), P0, ((void *)0))=-1, t2121={6:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x={3:0}, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L873] 0 pthread_t t2122; [L874] FCALL, FORK 0 pthread_create(&t2122, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2122, ((void *)0), P1, ((void *)0))=0, t2121={6:0}, t2122={5:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x={3:0}, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L789] 2 x$w_buff1 = x$w_buff0 [L790] 2 x$w_buff0 = 1 [L791] 2 x$w_buff1_used = x$w_buff0_used [L792] 2 x$w_buff0_used = (_Bool)1 [L793] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L793] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L794] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L795] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L796] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L797] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L798] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x={3:0}, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L801] 2 x$w_buff1 = x$w_buff0 [L802] 2 x$w_buff0 = 2 [L803] 2 x$w_buff1_used = x$w_buff0_used [L804] 2 x$w_buff0_used = (_Bool)1 [L805] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND TRUE 2 !expression [L19] 2 reach_error() VAL [\old(expression)=0, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, arg={0:0}, expression=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x={3:0}, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=1, x$w_buff1_used=1, y=0] - 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: -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: 19]: 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: -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: -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: -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: -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: -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: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 876]: 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: 874]: 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: 872]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 260 locations, 105 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: 35.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 21.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 169 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 295 IncrementalHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 0 mSDtfsCounter, 295 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 57 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 21:06:58,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe015_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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_a34279f4-587b-4c39-a22f-189577a3e3cf/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 1568f4b0615eb98ed6bee584aeda19485d9df0ed08c84a8233a5817e939c5388 --- 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 21:07:00,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:07:00,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:07:00,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:07:00,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:07:00,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:07:00,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:07:00,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:07:00,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:07:00,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:07:00,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:07:00,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:07:00,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:07:00,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:07:00,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:07:00,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:07:00,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:07:00,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:07:00,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:07:00,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:07:00,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:07:00,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:07:00,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:07:00,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:07:00,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:07:00,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:07:00,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:07:00,170 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:07:00,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:07:00,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:07:00,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:07:00,172 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:07:00,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:07:00,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:07:00,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:07:00,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:07:00,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:07:00,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:07:00,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:07:00,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:07:00,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:07:00,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-12-13 21:07:00,204 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:07:00,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:07:00,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:07:00,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:07:00,206 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:07:00,206 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:07:00,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:07:00,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:07:00,207 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:07:00,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:07:00,207 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:07:00,208 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:07:00,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:07:00,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:07:00,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:07:00,208 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 21:07:00,209 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 21:07:00,209 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 21:07:00,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:07:00,209 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 21:07:00,209 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 21:07:00,210 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 21:07:00,210 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:07:00,210 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:07:00,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:07:00,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:07:00,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:07:00,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:07:00,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:07:00,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:07:00,211 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 21:07:00,212 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 21:07:00,212 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:07:00,212 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:07:00,212 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:07:00,212 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 21:07:00,212 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:07:00,213 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_a34279f4-587b-4c39-a22f-189577a3e3cf/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_a34279f4-587b-4c39-a22f-189577a3e3cf/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 -> 1568f4b0615eb98ed6bee584aeda19485d9df0ed08c84a8233a5817e939c5388 [2022-12-13 21:07:00,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:07:00,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:07:00,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:07:00,461 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:07:00,462 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:07:00,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-wmm/safe015_power.oepc.i [2022-12-13 21:07:03,008 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:07:03,231 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:07:03,231 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/sv-benchmarks/c/pthread-wmm/safe015_power.oepc.i [2022-12-13 21:07:03,243 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/data/e6184f6b7/17509d0cbba04f2e88a957c30a51a630/FLAGbd1286898 [2022-12-13 21:07:03,562 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/data/e6184f6b7/17509d0cbba04f2e88a957c30a51a630 [2022-12-13 21:07:03,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:07:03,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:07:03,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:07:03,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:07:03,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:07:03,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:07:03" (1/1) ... [2022-12-13 21:07:03,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68474d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:03, skipping insertion in model container [2022-12-13 21:07:03,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:07:03" (1/1) ... [2022-12-13 21:07:03,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:07:03,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:07:03,710 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_a34279f4-587b-4c39-a22f-189577a3e3cf/sv-benchmarks/c/pthread-wmm/safe015_power.oepc.i[995,1008] [2022-12-13 21:07:03,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,812 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,813 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,814 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,817 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,817 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,819 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,819 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,819 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,820 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,828 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,829 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,830 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,831 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,836 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,837 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,838 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,844 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:07:03,855 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:07:03,864 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_a34279f4-587b-4c39-a22f-189577a3e3cf/sv-benchmarks/c/pthread-wmm/safe015_power.oepc.i[995,1008] [2022-12-13 21:07:03,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,886 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,887 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,901 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,903 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,905 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,906 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,915 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,916 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,918 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,926 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,927 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,929 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 21:07:03,934 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 21:07:03,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:07:03,969 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:07:03,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:03 WrapperNode [2022-12-13 21:07:03,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:07:03,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:07:03,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:07:03,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:07:03,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:03" (1/1) ... [2022-12-13 21:07:03,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:03" (1/1) ... [2022-12-13 21:07:04,023 INFO L138 Inliner]: procedures = 180, calls = 86, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 226 [2022-12-13 21:07:04,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:07:04,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:07:04,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:07:04,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:07:04,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:03" (1/1) ... [2022-12-13 21:07:04,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:03" (1/1) ... [2022-12-13 21:07:04,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:03" (1/1) ... [2022-12-13 21:07:04,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:03" (1/1) ... [2022-12-13 21:07:04,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:03" (1/1) ... [2022-12-13 21:07:04,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:03" (1/1) ... [2022-12-13 21:07:04,056 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:03" (1/1) ... [2022-12-13 21:07:04,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:03" (1/1) ... [2022-12-13 21:07:04,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:07:04,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:07:04,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:07:04,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:07:04,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:03" (1/1) ... [2022-12-13 21:07:04,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:07:04,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:07:04,092 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:07:04,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:07:04,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 21:07:04,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 21:07:04,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:07:04,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:07:04,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:07:04,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 21:07:04,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 21:07:04,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-13 21:07:04,124 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-13 21:07:04,124 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-13 21:07:04,124 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-13 21:07:04,124 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-13 21:07:04,124 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-13 21:07:04,124 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-13 21:07:04,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 21:07:04,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:07:04,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:07:04,126 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 21:07:04,247 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:07:04,249 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:07:04,873 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:07:05,519 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:07:05,520 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:07:05,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:07:05 BoogieIcfgContainer [2022-12-13 21:07:05,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:07:05,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:07:05,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:07:05,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:07:05,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:07:03" (1/3) ... [2022-12-13 21:07:05,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b10bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:07:05, skipping insertion in model container [2022-12-13 21:07:05,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:03" (2/3) ... [2022-12-13 21:07:05,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b10bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:07:05, skipping insertion in model container [2022-12-13 21:07:05,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:07:05" (3/3) ... [2022-12-13 21:07:05,528 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_power.oepc.i [2022-12-13 21:07:05,543 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:07:05,543 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2022-12-13 21:07:05,543 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 21:07:05,697 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 21:07:05,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 198 transitions, 411 flow [2022-12-13 21:07:05,786 INFO L130 PetriNetUnfolder]: 2/195 cut-off events. [2022-12-13 21:07:05,786 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:07:05,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 195 events. 2/195 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 360 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 134. Up to 2 conditions per place. [2022-12-13 21:07:05,790 INFO L82 GeneralOperation]: Start removeDead. Operand has 206 places, 198 transitions, 411 flow [2022-12-13 21:07:05,795 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 203 places, 195 transitions, 399 flow [2022-12-13 21:07:05,798 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 21:07:05,805 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 203 places, 195 transitions, 399 flow [2022-12-13 21:07:05,807 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 203 places, 195 transitions, 399 flow [2022-12-13 21:07:05,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 203 places, 195 transitions, 399 flow [2022-12-13 21:07:05,865 INFO L130 PetriNetUnfolder]: 2/195 cut-off events. [2022-12-13 21:07:05,865 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:07:05,866 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 195 events. 2/195 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 359 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 134. Up to 2 conditions per place. [2022-12-13 21:07:05,870 INFO L119 LiptonReduction]: Number of co-enabled transitions 9288 [2022-12-13 21:07:50,955 INFO L134 LiptonReduction]: Checked pairs total: 58224 [2022-12-13 21:07:50,955 INFO L136 LiptonReduction]: Total number of compositions: 149 [2022-12-13 21:07:50,966 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:07:50,970 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;@1262e7c0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:07:50,970 INFO L358 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2022-12-13 21:07:50,971 INFO L130 PetriNetUnfolder]: 0/1 cut-off events. [2022-12-13 21:07:50,972 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:07:50,972 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:07:50,972 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 21:07:50,972 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-13 21:07:50,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:50,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1417, now seen corresponding path program 1 times [2022-12-13 21:07:50,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:07:50,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375230834] [2022-12-13 21:07:50,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:50,985 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 21:07:50,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:07:50,986 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:07:50,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:07:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:51,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 21:07:51,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:07:51,068 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 21:07:51,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:07:51,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:07:51,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375230834] [2022-12-13 21:07:51,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375230834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:07:51,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:07:51,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 21:07:51,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268486617] [2022-12-13 21:07:51,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:07:51,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 21:07:51,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:07:51,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 21:07:51,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 21:07:51,092 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 347 [2022-12-13 21:07:51,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 89 transitions, 187 flow. Second operand has 2 states, 2 states have (on average 128.5) internal successors, (257), 2 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:07:51,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:07:51,094 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 347 [2022-12-13 21:07:51,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:07:56,847 INFO L130 PetriNetUnfolder]: 27605/39096 cut-off events. [2022-12-13 21:07:56,848 INFO L131 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2022-12-13 21:07:56,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77629 conditions, 39096 events. 27605/39096 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 3003. Compared 271675 event pairs, 27605 based on Foata normal form. 0/16322 useless extension candidates. Maximal degree in co-relation 77618. Up to 38383 conditions per place. [2022-12-13 21:07:57,067 INFO L137 encePairwiseOnDemand]: 307/347 looper letters, 47 selfloop transitions, 0 changer transitions 0/49 dead transitions. [2022-12-13 21:07:57,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 49 transitions, 201 flow [2022-12-13 21:07:57,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 21:07:57,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 21:07:57,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 343 transitions. [2022-12-13 21:07:57,078 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4942363112391931 [2022-12-13 21:07:57,078 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 343 transitions. [2022-12-13 21:07:57,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 343 transitions. [2022-12-13 21:07:57,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:07:57,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 343 transitions. [2022-12-13 21:07:57,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 171.5) internal successors, (343), 2 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:07:57,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 347.0) internal successors, (1041), 3 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:07:57,088 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 347.0) internal successors, (1041), 3 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:07:57,089 INFO L175 Difference]: Start difference. First operand has 99 places, 89 transitions, 187 flow. Second operand 2 states and 343 transitions. [2022-12-13 21:07:57,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 49 transitions, 201 flow [2022-12-13 21:07:57,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 49 transitions, 198 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 21:07:57,094 INFO L231 Difference]: Finished difference. Result has 57 places, 49 transitions, 104 flow [2022-12-13 21:07:57,096 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=104, PETRI_PLACES=57, PETRI_TRANSITIONS=49} [2022-12-13 21:07:57,098 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -42 predicate places. [2022-12-13 21:07:57,098 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 104 flow [2022-12-13 21:07:57,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 128.5) internal successors, (257), 2 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:07:57,099 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:07:57,099 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 21:07:57,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:07:57,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:07:57,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-13 21:07:57,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:57,302 INFO L85 PathProgramCache]: Analyzing trace with hash 43411655, now seen corresponding path program 1 times [2022-12-13 21:07:57,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:07:57,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837610307] [2022-12-13 21:07:57,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:57,304 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 21:07:57,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:07:57,305 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:07:57,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:07:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:57,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 21:07:57,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:07:57,593 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-12-13 21:07:57,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-12-13 21:07:57,622 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 21:07:57,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:07:57,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:07:57,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837610307] [2022-12-13 21:07:57,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837610307] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:07:57,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:07:57,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 21:07:57,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641771454] [2022-12-13 21:07:57,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:07:57,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:07:57,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:07:57,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:07:57,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:07:57,680 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 347 [2022-12-13 21:07:57,680 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:07:57,681 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:07:57,681 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 347 [2022-12-13 21:07:57,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:08:00,535 INFO L130 PetriNetUnfolder]: 14577/20598 cut-off events. [2022-12-13 21:08:00,535 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 21:08:00,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41221 conditions, 20598 events. 14577/20598 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 1226. Compared 127848 event pairs, 9313 based on Foata normal form. 0/10544 useless extension candidates. Maximal degree in co-relation 41218. Up to 11247 conditions per place. [2022-12-13 21:08:00,609 INFO L137 encePairwiseOnDemand]: 336/347 looper letters, 61 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2022-12-13 21:08:00,609 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 64 transitions, 260 flow [2022-12-13 21:08:00,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:08:00,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:08:00,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2022-12-13 21:08:00,612 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.42939481268011526 [2022-12-13 21:08:00,612 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 447 transitions. [2022-12-13 21:08:00,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 447 transitions. [2022-12-13 21:08:00,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:08:00,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 447 transitions. [2022-12-13 21:08:00,613 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 21:08:00,615 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:00,615 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:00,616 INFO L175 Difference]: Start difference. First operand has 57 places, 49 transitions, 104 flow. Second operand 3 states and 447 transitions. [2022-12-13 21:08:00,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 64 transitions, 260 flow [2022-12-13 21:08:00,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 64 transitions, 260 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 21:08:00,617 INFO L231 Difference]: Finished difference. Result has 57 places, 46 transitions, 116 flow [2022-12-13 21:08:00,617 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=57, PETRI_TRANSITIONS=46} [2022-12-13 21:08:00,617 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -42 predicate places. [2022-12-13 21:08:00,618 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 116 flow [2022-12-13 21:08:00,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.33333333333333) internal successors, (379), 3 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:00,618 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:08:00,618 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 21:08:00,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:08:00,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:08:00,820 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-13 21:08:00,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:00,822 INFO L85 PathProgramCache]: Analyzing trace with hash 43411656, now seen corresponding path program 1 times [2022-12-13 21:08:00,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:00,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233869887] [2022-12-13 21:08:00,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:00,825 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 21:08:00,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:00,827 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:08:00,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:08:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:00,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 21:08:00,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:00,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-13 21:08:00,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-13 21:08:00,957 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 21:08:00,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:08:00,957 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:00,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233869887] [2022-12-13 21:08:00,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233869887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:00,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:00,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 21:08:00,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108943417] [2022-12-13 21:08:00,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:00,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:08:00,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:00,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:08:00,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:08:01,008 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 347 [2022-12-13 21:08:01,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:01,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:08:01,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 347 [2022-12-13 21:08:01,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:08:02,122 INFO L130 PetriNetUnfolder]: 4084/6042 cut-off events. [2022-12-13 21:08:02,122 INFO L131 PetriNetUnfolder]: For 239/239 co-relation queries the response was YES. [2022-12-13 21:08:02,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13052 conditions, 6042 events. 4084/6042 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 389. Compared 34064 event pairs, 4084 based on Foata normal form. 0/4605 useless extension candidates. Maximal degree in co-relation 13047. Up to 5910 conditions per place. [2022-12-13 21:08:02,145 INFO L137 encePairwiseOnDemand]: 337/347 looper letters, 34 selfloop transitions, 1 changer transitions 0/37 dead transitions. [2022-12-13 21:08:02,145 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 37 transitions, 168 flow [2022-12-13 21:08:02,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:08:02,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:08:02,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 428 transitions. [2022-12-13 21:08:02,147 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4111431316042267 [2022-12-13 21:08:02,147 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 428 transitions. [2022-12-13 21:08:02,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 428 transitions. [2022-12-13 21:08:02,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:08:02,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 428 transitions. [2022-12-13 21:08:02,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:02,151 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:02,151 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:02,151 INFO L175 Difference]: Start difference. First operand has 57 places, 46 transitions, 116 flow. Second operand 3 states and 428 transitions. [2022-12-13 21:08:02,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 37 transitions, 168 flow [2022-12-13 21:08:02,155 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 37 transitions, 164 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 21:08:02,155 INFO L231 Difference]: Finished difference. Result has 48 places, 37 transitions, 96 flow [2022-12-13 21:08:02,156 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=48, PETRI_TRANSITIONS=37} [2022-12-13 21:08:02,156 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -51 predicate places. [2022-12-13 21:08:02,156 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 37 transitions, 96 flow [2022-12-13 21:08:02,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:02,157 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:08:02,157 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 21:08:02,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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)] Forceful destruction successful, exit code 0 [2022-12-13 21:08:02,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:08:02,359 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-13 21:08:02,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:02,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1230135273, now seen corresponding path program 1 times [2022-12-13 21:08:02,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:02,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073501090] [2022-12-13 21:08:02,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:02,364 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 21:08:02,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:02,368 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:08:02,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:08:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:02,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 21:08:02,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:02,517 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 21:08:02,518 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:08:02,518 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:02,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073501090] [2022-12-13 21:08:02,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1073501090] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:02,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:02,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 21:08:02,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961891800] [2022-12-13 21:08:02,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:02,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:08:02,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:02,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:08:02,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:08:02,522 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 347 [2022-12-13 21:08:02,523 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 37 transitions, 96 flow. Second operand has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:02,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 21:08:02,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 347 [2022-12-13 21:08:02,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 21:08:03,881 INFO L130 PetriNetUnfolder]: 3539/5156 cut-off events. [2022-12-13 21:08:03,882 INFO L131 PetriNetUnfolder]: For 280/280 co-relation queries the response was YES. [2022-12-13 21:08:03,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11190 conditions, 5156 events. 3539/5156 cut-off events. For 280/280 co-relation queries the response was YES. Maximal size of possible extension queue 348. Compared 29784 event pairs, 326 based on Foata normal form. 0/4122 useless extension candidates. Maximal degree in co-relation 11185. Up to 4569 conditions per place. [2022-12-13 21:08:03,902 INFO L137 encePairwiseOnDemand]: 344/347 looper letters, 54 selfloop transitions, 2 changer transitions 0/58 dead transitions. [2022-12-13 21:08:03,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 58 transitions, 261 flow [2022-12-13 21:08:03,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:08:03,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 21:08:03,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 438 transitions. [2022-12-13 21:08:03,904 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4207492795389049 [2022-12-13 21:08:03,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 438 transitions. [2022-12-13 21:08:03,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 438 transitions. [2022-12-13 21:08:03,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 21:08:03,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 438 transitions. [2022-12-13 21:08:03,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:03,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:03,907 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 347.0) internal successors, (1388), 4 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:03,908 INFO L175 Difference]: Start difference. First operand has 48 places, 37 transitions, 96 flow. Second operand 3 states and 438 transitions. [2022-12-13 21:08:03,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 58 transitions, 261 flow [2022-12-13 21:08:03,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 58 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 21:08:03,909 INFO L231 Difference]: Finished difference. Result has 48 places, 36 transitions, 97 flow [2022-12-13 21:08:03,909 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=347, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=48, PETRI_TRANSITIONS=36} [2022-12-13 21:08:03,910 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -51 predicate places. [2022-12-13 21:08:03,910 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 36 transitions, 97 flow [2022-12-13 21:08:03,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:08:03,910 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 21:08:03,910 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:08:03,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:08:04,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:08:04,111 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P1Err1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-12-13 21:08:04,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:04,112 INFO L85 PathProgramCache]: Analyzing trace with hash 520513428, now seen corresponding path program 1 times [2022-12-13 21:08:04,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:04,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [564062056] [2022-12-13 21:08:04,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:04,114 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 21:08:04,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:04,115 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:08:04,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:08:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:08:04,221 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:08:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:08:04,306 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 21:08:04,307 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:08:04,307 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (104 of 105 remaining) [2022-12-13 21:08:04,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (103 of 105 remaining) [2022-12-13 21:08:04,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (102 of 105 remaining) [2022-12-13 21:08:04,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (101 of 105 remaining) [2022-12-13 21:08:04,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (100 of 105 remaining) [2022-12-13 21:08:04,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (99 of 105 remaining) [2022-12-13 21:08:04,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (98 of 105 remaining) [2022-12-13 21:08:04,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (97 of 105 remaining) [2022-12-13 21:08:04,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (96 of 105 remaining) [2022-12-13 21:08:04,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (95 of 105 remaining) [2022-12-13 21:08:04,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (94 of 105 remaining) [2022-12-13 21:08:04,310 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (93 of 105 remaining) [2022-12-13 21:08:04,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (92 of 105 remaining) [2022-12-13 21:08:04,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (91 of 105 remaining) [2022-12-13 21:08:04,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONMEMORY_LEAK (90 of 105 remaining) [2022-12-13 21:08:04,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (89 of 105 remaining) [2022-12-13 21:08:04,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (88 of 105 remaining) [2022-12-13 21:08:04,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (87 of 105 remaining) [2022-12-13 21:08:04,311 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (86 of 105 remaining) [2022-12-13 21:08:04,312 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 105 remaining) [2022-12-13 21:08:04,312 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (84 of 105 remaining) [2022-12-13 21:08:04,312 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (83 of 105 remaining) [2022-12-13 21:08:04,312 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (82 of 105 remaining) [2022-12-13 21:08:04,312 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (81 of 105 remaining) [2022-12-13 21:08:04,312 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 105 remaining) [2022-12-13 21:08:04,312 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 105 remaining) [2022-12-13 21:08:04,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 105 remaining) [2022-12-13 21:08:04,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 105 remaining) [2022-12-13 21:08:04,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 105 remaining) [2022-12-13 21:08:04,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 105 remaining) [2022-12-13 21:08:04,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 105 remaining) [2022-12-13 21:08:04,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 105 remaining) [2022-12-13 21:08:04,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 105 remaining) [2022-12-13 21:08:04,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 105 remaining) [2022-12-13 21:08:04,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 105 remaining) [2022-12-13 21:08:04,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 105 remaining) [2022-12-13 21:08:04,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 105 remaining) [2022-12-13 21:08:04,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 105 remaining) [2022-12-13 21:08:04,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 105 remaining) [2022-12-13 21:08:04,314 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 105 remaining) [2022-12-13 21:08:04,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 105 remaining) [2022-12-13 21:08:04,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 105 remaining) [2022-12-13 21:08:04,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 105 remaining) [2022-12-13 21:08:04,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 105 remaining) [2022-12-13 21:08:04,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 105 remaining) [2022-12-13 21:08:04,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 105 remaining) [2022-12-13 21:08:04,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 105 remaining) [2022-12-13 21:08:04,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 105 remaining) [2022-12-13 21:08:04,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 105 remaining) [2022-12-13 21:08:04,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 105 remaining) [2022-12-13 21:08:04,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 105 remaining) [2022-12-13 21:08:04,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 105 remaining) [2022-12-13 21:08:04,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 105 remaining) [2022-12-13 21:08:04,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 105 remaining) [2022-12-13 21:08:04,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 105 remaining) [2022-12-13 21:08:04,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 105 remaining) [2022-12-13 21:08:04,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 105 remaining) [2022-12-13 21:08:04,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 105 remaining) [2022-12-13 21:08:04,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 105 remaining) [2022-12-13 21:08:04,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 105 remaining) [2022-12-13 21:08:04,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 105 remaining) [2022-12-13 21:08:04,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 105 remaining) [2022-12-13 21:08:04,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 105 remaining) [2022-12-13 21:08:04,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (41 of 105 remaining) [2022-12-13 21:08:04,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK (40 of 105 remaining) [2022-12-13 21:08:04,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 105 remaining) [2022-12-13 21:08:04,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 105 remaining) [2022-12-13 21:08:04,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 105 remaining) [2022-12-13 21:08:04,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 105 remaining) [2022-12-13 21:08:04,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 105 remaining) [2022-12-13 21:08:04,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 105 remaining) [2022-12-13 21:08:04,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 105 remaining) [2022-12-13 21:08:04,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 105 remaining) [2022-12-13 21:08:04,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 105 remaining) [2022-12-13 21:08:04,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 105 remaining) [2022-12-13 21:08:04,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 105 remaining) [2022-12-13 21:08:04,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 105 remaining) [2022-12-13 21:08:04,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 105 remaining) [2022-12-13 21:08:04,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 105 remaining) [2022-12-13 21:08:04,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 105 remaining) [2022-12-13 21:08:04,320 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONMEMORY_LEAK (24 of 105 remaining) [2022-12-13 21:08:04,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 105 remaining) [2022-12-13 21:08:04,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 105 remaining) [2022-12-13 21:08:04,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 105 remaining) [2022-12-13 21:08:04,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 105 remaining) [2022-12-13 21:08:04,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 105 remaining) [2022-12-13 21:08:04,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 105 remaining) [2022-12-13 21:08:04,321 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 105 remaining) [2022-12-13 21:08:04,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 105 remaining) [2022-12-13 21:08:04,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 105 remaining) [2022-12-13 21:08:04,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 105 remaining) [2022-12-13 21:08:04,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 105 remaining) [2022-12-13 21:08:04,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 105 remaining) [2022-12-13 21:08:04,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 105 remaining) [2022-12-13 21:08:04,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 105 remaining) [2022-12-13 21:08:04,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 105 remaining) [2022-12-13 21:08:04,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 105 remaining) [2022-12-13 21:08:04,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 105 remaining) [2022-12-13 21:08:04,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 105 remaining) [2022-12-13 21:08:04,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 105 remaining) [2022-12-13 21:08:04,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 105 remaining) [2022-12-13 21:08:04,323 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 105 remaining) [2022-12-13 21:08:04,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 105 remaining) [2022-12-13 21:08:04,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 105 remaining) [2022-12-13 21:08:04,324 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 105 remaining) [2022-12-13 21:08:04,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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)] Forceful destruction successful, exit code 0 [2022-12-13 21:08:04,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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 21:08:04,526 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-13 21:08:04,544 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 21:08:04,544 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:08:04,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:08:04 BasicIcfg [2022-12-13 21:08:04,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:08:04,591 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:08:04,592 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:08:04,592 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:08:04,592 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:07:05" (3/4) ... [2022-12-13 21:08:04,594 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:08:04,594 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:08:04,595 INFO L158 Benchmark]: Toolchain (without parser) took 61029.42ms. Allocated memory was 83.9MB in the beginning and 3.0GB in the end (delta: 2.9GB). Free memory was 60.8MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-12-13 21:08:04,595 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 62.9MB. Free memory was 41.3MB in the beginning and 41.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:08:04,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.63ms. Allocated memory is still 83.9MB. Free memory was 60.5MB in the beginning and 54.3MB in the end (delta: 6.2MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2022-12-13 21:08:04,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.07ms. Allocated memory is still 83.9MB. Free memory was 54.3MB in the beginning and 51.0MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:08:04,596 INFO L158 Benchmark]: Boogie Preprocessor took 40.23ms. Allocated memory is still 83.9MB. Free memory was 51.0MB in the beginning and 48.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 21:08:04,596 INFO L158 Benchmark]: RCFGBuilder took 1457.89ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 48.0MB in the beginning and 39.6MB in the end (delta: 8.5MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2022-12-13 21:08:04,596 INFO L158 Benchmark]: TraceAbstraction took 59067.32ms. Allocated memory was 100.7MB in the beginning and 3.0GB in the end (delta: 2.9GB). Free memory was 39.6MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-12-13 21:08:04,597 INFO L158 Benchmark]: Witness Printer took 2.63ms. Allocated memory is still 3.0GB. Free memory is still 1.7GB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:08:04,598 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 62.9MB. Free memory was 41.3MB in the beginning and 41.2MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 403.63ms. Allocated memory is still 83.9MB. Free memory was 60.5MB in the beginning and 54.3MB in the end (delta: 6.2MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.07ms. Allocated memory is still 83.9MB. Free memory was 54.3MB in the beginning and 51.0MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.23ms. Allocated memory is still 83.9MB. Free memory was 51.0MB in the beginning and 48.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1457.89ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 48.0MB in the beginning and 39.6MB in the end (delta: 8.5MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * TraceAbstraction took 59067.32ms. Allocated memory was 100.7MB in the beginning and 3.0GB in the end (delta: 2.9GB). Free memory was 39.6MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 2.63ms. Allocated memory is still 3.0GB. Free memory is still 1.7GB. 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: 45.1s, 203 PlacesBefore, 99 PlacesAfterwards, 195 TransitionsBefore, 89 TransitionsAfterwards, 9288 CoEnabledTransitionPairs, 7 FixpointIterations, 67 TrivialSequentialCompositions, 77 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 149 TotalNumberOfCompositions, 58224 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13573, independent: 12710, independent conditional: 0, independent unconditional: 12710, dependent: 863, dependent conditional: 0, dependent unconditional: 863, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3266, independent: 3145, independent conditional: 0, independent unconditional: 3145, dependent: 121, dependent conditional: 0, dependent unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13573, independent: 9565, independent conditional: 0, independent unconditional: 9565, dependent: 742, dependent conditional: 0, dependent unconditional: 742, unknown: 3266, unknown conditional: 0, unknown unconditional: 3266] , Statistics on independence cache: Total cache size (in pairs): 530, Positive cache size: 453, Positive conditional cache size: 0, Positive unconditional cache size: 453, Negative cache size: 77, Negative conditional cache size: 0, Negative unconditional cache size: 77, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L714] 0 int __unbuffered_p2_EAX = 0; [L715] 0 _Bool __unbuffered_p2_EAX$flush_delayed; [L716] 0 int __unbuffered_p2_EAX$mem_tmp; [L717] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd0; [L718] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd1; [L719] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd2; [L720] 0 _Bool __unbuffered_p2_EAX$r_buff0_thd3; [L721] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd0; [L722] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd1; [L723] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd2; [L724] 0 _Bool __unbuffered_p2_EAX$r_buff1_thd3; [L725] 0 _Bool __unbuffered_p2_EAX$read_delayed; [L726] 0 int *__unbuffered_p2_EAX$read_delayed_var; [L727] 0 int __unbuffered_p2_EAX$w_buff0; [L728] 0 _Bool __unbuffered_p2_EAX$w_buff0_used; [L729] 0 int __unbuffered_p2_EAX$w_buff1; [L730] 0 _Bool __unbuffered_p2_EAX$w_buff1_used; [L731] 0 _Bool main$tmp_guard0; [L732] 0 _Bool main$tmp_guard1; [L734] 0 int x = 0; [L735] 0 _Bool x$flush_delayed; [L736] 0 int x$mem_tmp; [L737] 0 _Bool x$r_buff0_thd0; [L738] 0 _Bool x$r_buff0_thd1; [L739] 0 _Bool x$r_buff0_thd2; [L740] 0 _Bool x$r_buff0_thd3; [L741] 0 _Bool x$r_buff1_thd0; [L742] 0 _Bool x$r_buff1_thd1; [L743] 0 _Bool x$r_buff1_thd2; [L744] 0 _Bool x$r_buff1_thd3; [L745] 0 _Bool x$read_delayed; [L746] 0 int *x$read_delayed_var; [L747] 0 int x$w_buff0; [L748] 0 _Bool x$w_buff0_used; [L749] 0 int x$w_buff1; [L750] 0 _Bool x$w_buff1_used; [L752] 0 int y = 0; [L753] 0 _Bool weak$$choice0; [L754] 0 _Bool weak$$choice1; [L755] 0 _Bool weak$$choice2; [L871] 0 pthread_t t2121; [L872] FCALL, FORK 0 pthread_create(&t2121, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2121, ((void *)0), P0, ((void *)0))=-1, t2121={7:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x={3:0}, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L873] 0 pthread_t t2122; [L874] FCALL, FORK 0 pthread_create(&t2122, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2122, ((void *)0), P1, ((void *)0))=0, t2121={7:0}, t2122={15:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x={3:0}, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L789] 2 x$w_buff1 = x$w_buff0 [L790] 2 x$w_buff0 = 1 [L791] 2 x$w_buff1_used = x$w_buff0_used [L792] 2 x$w_buff0_used = (_Bool)1 [L793] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L793] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L794] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L795] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L796] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L797] 2 x$r_buff1_thd3 = x$r_buff0_thd3 [L798] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x={3:0}, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L801] 2 x$w_buff1 = x$w_buff0 [L802] 2 x$w_buff0 = 2 [L803] 2 x$w_buff1_used = x$w_buff0_used [L804] 2 x$w_buff0_used = (_Bool)1 [L805] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L19] COND TRUE 2 !expression [L19] 2 reach_error() VAL [\old(expression)=0, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EAX$flush_delayed=0, __unbuffered_p2_EAX$mem_tmp=0, __unbuffered_p2_EAX$r_buff0_thd0=0, __unbuffered_p2_EAX$r_buff0_thd1=0, __unbuffered_p2_EAX$r_buff0_thd2=0, __unbuffered_p2_EAX$r_buff0_thd3=0, __unbuffered_p2_EAX$r_buff1_thd0=0, __unbuffered_p2_EAX$r_buff1_thd1=0, __unbuffered_p2_EAX$r_buff1_thd2=0, __unbuffered_p2_EAX$r_buff1_thd3=0, __unbuffered_p2_EAX$read_delayed=0, __unbuffered_p2_EAX$read_delayed_var={0:0}, __unbuffered_p2_EAX$w_buff0=0, __unbuffered_p2_EAX$w_buff0_used=0, __unbuffered_p2_EAX$w_buff1=0, __unbuffered_p2_EAX$w_buff1_used=0, arg={0:0}, expression=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x={3:0}, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff0_thd3=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$r_buff1_thd3=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=1, x$w_buff1_used=1, y=0] - 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: -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: 19]: 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: -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: -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: -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: -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: -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: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 869]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 876]: 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: 874]: 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: 872]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 261 locations, 105 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: 58.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 45.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 170 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 283 IncrementalHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 3 mSDtfsCounter, 283 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=187occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 84 SizeOfPredicates, 2 NumberOfNonLiveVariables, 283 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 21:08:04,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a34279f4-587b-4c39-a22f-189577a3e3cf/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