./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a45428c1422efa85fd947d764edf0847add56b17c38e18f54072b18b642fedaf --- 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 [2022-12-14 05:31:57,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:31:57,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:31:57,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:31:57,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:31:57,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:31:57,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:31:57,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:31:57,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:31:57,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:31:57,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:31:57,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:31:57,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:31:57,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:31:57,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:31:57,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:31:57,747 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:31:57,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:31:57,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:31:57,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:31:57,753 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:31:57,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:31:57,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:31:57,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:31:57,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:31:57,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:31:57,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:31:57,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:31:57,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:31:57,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:31:57,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:31:57,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:31:57,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:31:57,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:31:57,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:31:57,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:31:57,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:31:57,774 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:31:57,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:31:57,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:31:57,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:31:57,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 05:31:57,800 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:31:57,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:31:57,801 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:31:57,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:31:57,801 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:31:57,802 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:31:57,802 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:31:57,802 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:31:57,802 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:31:57,802 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:31:57,802 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:31:57,803 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:31:57,803 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:31:57,803 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:31:57,803 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:31:57,803 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:31:57,804 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:31:57,804 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:31:57,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:31:57,805 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:31:57,805 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:31:57,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:31:57,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:31:57,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:31:57,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:31:57,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:31:57,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:31:57,806 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 05:31:57,806 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:31:57,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:31:57,806 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:31:57,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:31:57,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:31:57,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:31:57,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:31:57,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:31:57,807 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:31:57,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:31:57,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:31:57,808 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:31:57,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:31:57,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:31:57,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:31:57,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a45428c1422efa85fd947d764edf0847add56b17c38e18f54072b18b642fedaf [2022-12-14 05:31:58,006 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:31:58,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:31:58,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:31:58,025 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:31:58,025 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:31:58,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-wmm/safe016_power.oepc.i [2022-12-14 05:32:00,678 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:32:00,904 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:32:00,904 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/sv-benchmarks/c/pthread-wmm/safe016_power.oepc.i [2022-12-14 05:32:00,925 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh/data/9bce5f23d/13760acc738f4cdaadfa3781e461e118/FLAG720db0c6e [2022-12-14 05:32:00,939 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh/data/9bce5f23d/13760acc738f4cdaadfa3781e461e118 [2022-12-14 05:32:00,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:32:00,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:32:00,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:32:00,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:32:00,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:32:00,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:32:00" (1/1) ... [2022-12-14 05:32:00,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2153320c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:00, skipping insertion in model container [2022-12-14 05:32:00,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:32:00" (1/1) ... [2022-12-14 05:32:00,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:32:01,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:32:01,188 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_c175db5d-5cd4-4218-9715-e9bf0ae56bed/sv-benchmarks/c/pthread-wmm/safe016_power.oepc.i[995,1008] [2022-12-14 05:32:01,290 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,304 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,305 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,307 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,308 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,309 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,310 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,312 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,318 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,320 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,326 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:32:01,337 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:32:01,348 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_c175db5d-5cd4-4218-9715-e9bf0ae56bed/sv-benchmarks/c/pthread-wmm/safe016_power.oepc.i[995,1008] [2022-12-14 05:32:01,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,381 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,388 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 05:32:01,400 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 05:32:01,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:32:01,424 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:32:01,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:01 WrapperNode [2022-12-14 05:32:01,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:32:01,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:32:01,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:32:01,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:32:01,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:01" (1/1) ... [2022-12-14 05:32:01,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:01" (1/1) ... [2022-12-14 05:32:01,459 INFO L138 Inliner]: procedures = 177, calls = 87, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 185 [2022-12-14 05:32:01,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:32:01,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:32:01,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:32:01,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:32:01,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:01" (1/1) ... [2022-12-14 05:32:01,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:01" (1/1) ... [2022-12-14 05:32:01,470 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:01" (1/1) ... [2022-12-14 05:32:01,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:01" (1/1) ... [2022-12-14 05:32:01,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:01" (1/1) ... [2022-12-14 05:32:01,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:01" (1/1) ... [2022-12-14 05:32:01,479 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:01" (1/1) ... [2022-12-14 05:32:01,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:01" (1/1) ... [2022-12-14 05:32:01,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:32:01,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:32:01,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:32:01,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:32:01,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:01" (1/1) ... [2022-12-14 05:32:01,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:32:01,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:32:01,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:32:01,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:32:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 05:32:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 05:32:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 05:32:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:32:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:32:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:32:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-14 05:32:01,535 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-14 05:32:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-14 05:32:01,535 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-14 05:32:01,535 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-14 05:32:01,535 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-14 05:32:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-14 05:32:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-14 05:32:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:32:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 05:32:01,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:32:01,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:32:01,537 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 05:32:01,661 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:32:01,663 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:32:02,056 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:32:02,309 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:32:02,310 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 05:32:02,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:32:02 BoogieIcfgContainer [2022-12-14 05:32:02,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:32:02,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:32:02,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:32:02,317 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:32:02,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:32:00" (1/3) ... [2022-12-14 05:32:02,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612317c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:32:02, skipping insertion in model container [2022-12-14 05:32:02,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:32:01" (2/3) ... [2022-12-14 05:32:02,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@612317c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:32:02, skipping insertion in model container [2022-12-14 05:32:02,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:32:02" (3/3) ... [2022-12-14 05:32:02,320 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_power.oepc.i [2022-12-14 05:32:02,329 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 05:32:02,339 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:32:02,339 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 05:32:02,339 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 05:32:02,404 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 05:32:02,436 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 05:32:02,450 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 167 places, 156 transitions, 332 flow [2022-12-14 05:32:02,453 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 167 places, 156 transitions, 332 flow [2022-12-14 05:32:02,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 156 transitions, 332 flow [2022-12-14 05:32:02,518 INFO L130 PetriNetUnfolder]: 2/152 cut-off events. [2022-12-14 05:32:02,518 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 05:32:02,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 152 events. 2/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/142 useless extension candidates. Maximal degree in co-relation 93. Up to 2 conditions per place. [2022-12-14 05:32:02,527 INFO L119 LiptonReduction]: Number of co-enabled transitions 3600 [2022-12-14 05:32:17,373 INFO L134 LiptonReduction]: Checked pairs total: 10511 [2022-12-14 05:32:17,374 INFO L136 LiptonReduction]: Total number of compositions: 136 [2022-12-14 05:32:17,379 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 36 transitions, 92 flow [2022-12-14 05:32:17,566 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5530 states, 5450 states have (on average 4.297247706422018) internal successors, (23420), 5529 states have internal predecessors, (23420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:17,580 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:32:17,586 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@64ee92d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:32:17,586 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-12-14 05:32:17,600 INFO L276 IsEmpty]: Start isEmpty. Operand has 5530 states, 5450 states have (on average 4.297247706422018) internal successors, (23420), 5529 states have internal predecessors, (23420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:17,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 05:32:17,604 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:32:17,604 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 05:32:17,605 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 05:32:17,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:32:17,609 INFO L85 PathProgramCache]: Analyzing trace with hash 28985186, now seen corresponding path program 1 times [2022-12-14 05:32:17,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:32:17,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427564800] [2022-12-14 05:32:17,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:32:17,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:32:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:32:17,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:32:17,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:32:17,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427564800] [2022-12-14 05:32:17,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427564800] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:32:17,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:32:17,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 05:32:17,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276055866] [2022-12-14 05:32:17,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:32:17,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:32:17,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:32:17,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:32:17,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:32:17,928 INFO L87 Difference]: Start difference. First operand has 5530 states, 5450 states have (on average 4.297247706422018) internal successors, (23420), 5529 states have internal predecessors, (23420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:18,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:32:18,107 INFO L93 Difference]: Finished difference Result 3194 states and 11269 transitions. [2022-12-14 05:32:18,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:32:18,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 05:32:18,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:32:18,167 INFO L225 Difference]: With dead ends: 3194 [2022-12-14 05:32:18,167 INFO L226 Difference]: Without dead ends: 3194 [2022-12-14 05:32:18,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:32:18,171 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 16 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:32:18,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:32:18,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2022-12-14 05:32:18,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 3194. [2022-12-14 05:32:18,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3194 states, 3130 states have (on average 3.6003194888178913) internal successors, (11269), 3193 states have internal predecessors, (11269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:18,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3194 states to 3194 states and 11269 transitions. [2022-12-14 05:32:18,344 INFO L78 Accepts]: Start accepts. Automaton has 3194 states and 11269 transitions. Word has length 4 [2022-12-14 05:32:18,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:32:18,345 INFO L495 AbstractCegarLoop]: Abstraction has 3194 states and 11269 transitions. [2022-12-14 05:32:18,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:18,345 INFO L276 IsEmpty]: Start isEmpty. Operand 3194 states and 11269 transitions. [2022-12-14 05:32:18,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 05:32:18,346 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:32:18,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:32:18,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:32:18,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 05:32:18,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:32:18,347 INFO L85 PathProgramCache]: Analyzing trace with hash 2132624667, now seen corresponding path program 1 times [2022-12-14 05:32:18,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:32:18,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899604642] [2022-12-14 05:32:18,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:32:18,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:32:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:32:18,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:32:18,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:32:18,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899604642] [2022-12-14 05:32:18,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899604642] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:32:18,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:32:18,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:32:18,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563622108] [2022-12-14 05:32:18,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:32:18,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:32:18,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:32:18,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:32:18,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:32:18,469 INFO L87 Difference]: Start difference. First operand 3194 states and 11269 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:18,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:32:18,631 INFO L93 Difference]: Finished difference Result 1930 states and 6835 transitions. [2022-12-14 05:32:18,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:32:18,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 05:32:18,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:32:18,640 INFO L225 Difference]: With dead ends: 1930 [2022-12-14 05:32:18,640 INFO L226 Difference]: Without dead ends: 1930 [2022-12-14 05:32:18,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:32:18,642 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 34 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:32:18,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 8 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:32:18,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2022-12-14 05:32:18,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1930. [2022-12-14 05:32:18,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1930 states, 1916 states have (on average 3.567327766179541) internal successors, (6835), 1929 states have internal predecessors, (6835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:18,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 6835 transitions. [2022-12-14 05:32:18,688 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 6835 transitions. Word has length 8 [2022-12-14 05:32:18,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:32:18,689 INFO L495 AbstractCegarLoop]: Abstraction has 1930 states and 6835 transitions. [2022-12-14 05:32:18,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:18,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 6835 transitions. [2022-12-14 05:32:18,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 05:32:18,690 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:32:18,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:32:18,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:32:18,690 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 05:32:18,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:32:18,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1686853510, now seen corresponding path program 1 times [2022-12-14 05:32:18,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:32:18,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951800391] [2022-12-14 05:32:18,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:32:18,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:32:18,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:32:18,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:32:18,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:32:18,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951800391] [2022-12-14 05:32:18,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951800391] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:32:18,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:32:18,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:32:18,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103901572] [2022-12-14 05:32:18,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:32:18,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:32:18,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:32:18,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:32:18,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:32:18,771 INFO L87 Difference]: Start difference. First operand 1930 states and 6835 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:18,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:32:18,915 INFO L93 Difference]: Finished difference Result 1300 states and 4511 transitions. [2022-12-14 05:32:18,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:32:18,916 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 05:32:18,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:32:18,924 INFO L225 Difference]: With dead ends: 1300 [2022-12-14 05:32:18,924 INFO L226 Difference]: Without dead ends: 1300 [2022-12-14 05:32:18,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:32:18,925 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 41 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:32:18,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 6 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:32:18,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2022-12-14 05:32:18,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 1300. [2022-12-14 05:32:18,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 1290 states have (on average 3.4968992248062016) internal successors, (4511), 1299 states have internal predecessors, (4511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:18,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 4511 transitions. [2022-12-14 05:32:18,966 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 4511 transitions. Word has length 9 [2022-12-14 05:32:18,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:32:18,966 INFO L495 AbstractCegarLoop]: Abstraction has 1300 states and 4511 transitions. [2022-12-14 05:32:18,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:18,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 4511 transitions. [2022-12-14 05:32:18,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 05:32:18,970 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:32:18,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:32:18,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:32:18,971 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 05:32:18,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:32:18,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1287580399, now seen corresponding path program 1 times [2022-12-14 05:32:18,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:32:18,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958247783] [2022-12-14 05:32:18,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:32:18,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:32:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:32:19,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:32:19,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:32:19,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958247783] [2022-12-14 05:32:19,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958247783] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:32:19,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:32:19,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:32:19,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256575986] [2022-12-14 05:32:19,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:32:19,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:32:19,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:32:19,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:32:19,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:32:19,067 INFO L87 Difference]: Start difference. First operand 1300 states and 4511 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:19,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:32:19,229 INFO L93 Difference]: Finished difference Result 1126 states and 4037 transitions. [2022-12-14 05:32:19,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:32:19,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-12-14 05:32:19,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:32:19,235 INFO L225 Difference]: With dead ends: 1126 [2022-12-14 05:32:19,236 INFO L226 Difference]: Without dead ends: 1126 [2022-12-14 05:32:19,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:32:19,237 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 55 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:32:19,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 8 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:32:19,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2022-12-14 05:32:19,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1126. [2022-12-14 05:32:19,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 1122 states have (on average 3.5980392156862746) internal successors, (4037), 1125 states have internal predecessors, (4037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:19,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 4037 transitions. [2022-12-14 05:32:19,269 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 4037 transitions. Word has length 15 [2022-12-14 05:32:19,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:32:19,269 INFO L495 AbstractCegarLoop]: Abstraction has 1126 states and 4037 transitions. [2022-12-14 05:32:19,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:19,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 4037 transitions. [2022-12-14 05:32:19,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 05:32:19,273 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:32:19,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:32:19,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 05:32:19,273 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 05:32:19,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:32:19,274 INFO L85 PathProgramCache]: Analyzing trace with hash -985362976, now seen corresponding path program 1 times [2022-12-14 05:32:19,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:32:19,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094879379] [2022-12-14 05:32:19,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:32:19,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:32:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:32:19,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:32:19,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:32:19,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094879379] [2022-12-14 05:32:19,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094879379] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:32:19,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:32:19,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:32:19,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934023740] [2022-12-14 05:32:19,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:32:19,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 05:32:19,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:32:19,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 05:32:19,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:32:19,382 INFO L87 Difference]: Start difference. First operand 1126 states and 4037 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:19,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:32:19,515 INFO L93 Difference]: Finished difference Result 1110 states and 4009 transitions. [2022-12-14 05:32:19,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:32:19,515 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-14 05:32:19,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:32:19,515 INFO L225 Difference]: With dead ends: 1110 [2022-12-14 05:32:19,515 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 05:32:19,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:32:19,516 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 54 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:32:19,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 8 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:32:19,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 05:32:19,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 05:32:19,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:19,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 05:32:19,518 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2022-12-14 05:32:19,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:32:19,518 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 05:32:19,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:32:19,518 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 05:32:19,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 05:32:19,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-12-14 05:32:19,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-12-14 05:32:19,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-12-14 05:32:19,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-12-14 05:32:19,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-12-14 05:32:19,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-12-14 05:32:19,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-12-14 05:32:19,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-12-14 05:32:19,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-12-14 05:32:19,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-12-14 05:32:19,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-12-14 05:32:19,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-12-14 05:32:19,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-12-14 05:32:19,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-12-14 05:32:19,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-12-14 05:32:19,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-12-14 05:32:19,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-12-14 05:32:19,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-12-14 05:32:19,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-12-14 05:32:19,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-12-14 05:32:19,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:32:19,526 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 05:32:19,530 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 05:32:19,530 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 05:32:19,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:32:19 BasicIcfg [2022-12-14 05:32:19,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 05:32:19,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 05:32:19,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 05:32:19,533 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 05:32:19,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:32:02" (3/4) ... [2022-12-14 05:32:19,536 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 05:32:19,540 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-14 05:32:19,540 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-14 05:32:19,541 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-14 05:32:19,541 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-12-14 05:32:19,545 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 64 nodes and edges [2022-12-14 05:32:19,546 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-12-14 05:32:19,546 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 05:32:19,546 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 05:32:19,586 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 05:32:19,586 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 05:32:19,587 INFO L158 Benchmark]: Toolchain (without parser) took 18644.24ms. Allocated memory was 142.6MB in the beginning and 174.1MB in the end (delta: 31.5MB). Free memory was 80.1MB in the beginning and 93.9MB in the end (delta: -13.8MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-12-14 05:32:19,587 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 94.4MB. Free memory is still 55.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:32:19,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.96ms. Allocated memory is still 142.6MB. Free memory was 80.0MB in the beginning and 94.4MB in the end (delta: -14.4MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-12-14 05:32:19,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.15ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 91.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:32:19,588 INFO L158 Benchmark]: Boogie Preprocessor took 23.46ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 89.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:32:19,588 INFO L158 Benchmark]: RCFGBuilder took 828.23ms. Allocated memory is still 142.6MB. Free memory was 88.9MB in the beginning and 73.2MB in the end (delta: 15.7MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2022-12-14 05:32:19,588 INFO L158 Benchmark]: TraceAbstraction took 17218.03ms. Allocated memory was 142.6MB in the beginning and 174.1MB in the end (delta: 31.5MB). Free memory was 72.5MB in the beginning and 98.0MB in the end (delta: -25.6MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-12-14 05:32:19,589 INFO L158 Benchmark]: Witness Printer took 53.40ms. Allocated memory is still 174.1MB. Free memory was 98.0MB in the beginning and 93.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 05:32:19,590 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 94.4MB. Free memory is still 55.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 480.96ms. Allocated memory is still 142.6MB. Free memory was 80.0MB in the beginning and 94.4MB in the end (delta: -14.4MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.15ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 91.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.46ms. Allocated memory is still 142.6MB. Free memory was 91.5MB in the beginning and 89.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 828.23ms. Allocated memory is still 142.6MB. Free memory was 88.9MB in the beginning and 73.2MB in the end (delta: 15.7MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. * TraceAbstraction took 17218.03ms. Allocated memory was 142.6MB in the beginning and 174.1MB in the end (delta: 31.5MB). Free memory was 72.5MB in the beginning and 98.0MB in the end (delta: -25.6MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Witness Printer took 53.40ms. Allocated memory is still 174.1MB. Free memory was 98.0MB in the beginning and 93.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.9s, 167 PlacesBefore, 48 PlacesAfterwards, 156 TransitionsBefore, 36 TransitionsAfterwards, 3600 CoEnabledTransitionPairs, 7 FixpointIterations, 63 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 1 ChoiceCompositions, 136 TotalNumberOfCompositions, 10511 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4341, independent: 4045, independent conditional: 0, independent unconditional: 4045, dependent: 296, dependent conditional: 0, dependent unconditional: 296, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2376, independent: 2311, independent conditional: 0, independent unconditional: 2311, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2376, independent: 2235, independent conditional: 0, independent unconditional: 2235, dependent: 141, dependent conditional: 0, dependent unconditional: 141, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 141, independent: 76, independent conditional: 0, independent unconditional: 76, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1060, independent: 215, independent conditional: 0, independent unconditional: 215, dependent: 845, dependent conditional: 0, dependent unconditional: 845, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4341, independent: 1734, independent conditional: 0, independent unconditional: 1734, dependent: 231, dependent conditional: 0, dependent unconditional: 231, unknown: 2376, unknown conditional: 0, unknown unconditional: 2376] , Statistics on independence cache: Total cache size (in pairs): 218, Positive cache size: 188, Positive conditional cache size: 0, Positive unconditional cache size: 188, Negative cache size: 30, Negative conditional cache size: 0, Negative unconditional cache size: 30, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 788]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 788]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 800]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 800]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 820]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 837]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 837]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 195 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 17.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 200 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 200 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 361 IncrementalHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 12 mSDtfsCounter, 361 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5530occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 05:32:19,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c175db5d-5cd4-4218-9715-e9bf0ae56bed/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE