./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_780b4e4c-6a37-4a3f-a791-92c5a302ed05/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780b4e4c-6a37-4a3f-a791-92c5a302ed05/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_780b4e4c-6a37-4a3f-a791-92c5a302ed05/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780b4e4c-6a37-4a3f-a791-92c5a302ed05/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780b4e4c-6a37-4a3f-a791-92c5a302ed05/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_780b4e4c-6a37-4a3f-a791-92c5a302ed05/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 c947ca303cec71cbb6edeb9f866ed53067014e89778e5c242eb251405d7ab484 --- 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 09:24:20,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:24:20,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:24:20,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:24:20,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:24:20,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:24:20,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:24:20,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:24:20,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:24:20,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:24:20,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:24:20,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:24:20,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:24:20,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:24:20,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:24:20,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:24:20,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:24:20,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:24:20,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:24:20,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:24:20,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:24:20,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:24:20,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:24:20,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:24:20,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:24:20,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:24:20,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:24:20,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:24:20,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:24:20,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:24:20,832 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:24:20,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:24:20,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:24:20,834 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:24:20,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:24:20,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:24:20,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:24:20,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:24:20,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:24:20,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:24:20,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:24:20,838 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780b4e4c-6a37-4a3f-a791-92c5a302ed05/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 09:24:20,857 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:24:20,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:24:20,857 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:24:20,857 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:24:20,858 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:24:20,858 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:24:20,858 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:24:20,858 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:24:20,858 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:24:20,858 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:24:20,858 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:24:20,859 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:24:20,859 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:24:20,859 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:24:20,859 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:24:20,859 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:24:20,859 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:24:20,859 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:24:20,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:24:20,860 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:24:20,860 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:24:20,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:24:20,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:24:20,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:24:20,860 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:24:20,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:24:20,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:24:20,861 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 09:24:20,861 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:24:20,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:24:20,861 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:24:20,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:24:20,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:24:20,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:24:20,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:24:20,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:24:20,862 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:24:20,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:24:20,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:24:20,862 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:24:20,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:24:20,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:24:20,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:24:20,863 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_780b4e4c-6a37-4a3f-a791-92c5a302ed05/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780b4e4c-6a37-4a3f-a791-92c5a302ed05/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c947ca303cec71cbb6edeb9f866ed53067014e89778e5c242eb251405d7ab484 [2022-12-14 09:24:21,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:24:21,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:24:21,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:24:21,045 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:24:21,046 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:24:21,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780b4e4c-6a37-4a3f-a791-92c5a302ed05/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2022-12-14 09:24:23,600 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:24:23,763 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:24:23,763 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780b4e4c-6a37-4a3f-a791-92c5a302ed05/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c [2022-12-14 09:24:23,768 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780b4e4c-6a37-4a3f-a791-92c5a302ed05/bin/utaipan-gh47qXpMRh/data/62169e0bd/94d458d1e2e04eae8377e96dc28784d0/FLAG4ae34aa28 [2022-12-14 09:24:24,205 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780b4e4c-6a37-4a3f-a791-92c5a302ed05/bin/utaipan-gh47qXpMRh/data/62169e0bd/94d458d1e2e04eae8377e96dc28784d0 [2022-12-14 09:24:24,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:24:24,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:24:24,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:24:24,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:24:24,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:24:24,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:24:24" (1/1) ... [2022-12-14 09:24:24,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf8bfa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:24, skipping insertion in model container [2022-12-14 09:24:24,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:24:24" (1/1) ... [2022-12-14 09:24:24,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:24:24,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:24:24,361 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,364 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,365 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,366 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,367 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,368 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,369 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,370 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,386 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_780b4e4c-6a37-4a3f-a791-92c5a302ed05/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c[3089,3102] [2022-12-14 09:24:24,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:24:24,396 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:24:24,408 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,408 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,409 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,410 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,411 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,412 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,413 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,414 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,415 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,416 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 09:24:24,417 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 09:24:24,424 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_780b4e4c-6a37-4a3f-a791-92c5a302ed05/sv-benchmarks/c/weaver/parallel-ticket-3.wvr.c[3089,3102] [2022-12-14 09:24:24,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:24:24,441 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:24:24,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:24 WrapperNode [2022-12-14 09:24:24,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:24:24,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:24:24,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:24:24,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:24:24,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:24" (1/1) ... [2022-12-14 09:24:24,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:24" (1/1) ... [2022-12-14 09:24:24,477 INFO L138 Inliner]: procedures = 22, calls = 55, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 170 [2022-12-14 09:24:24,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:24:24,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:24:24,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:24:24,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:24:24,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:24" (1/1) ... [2022-12-14 09:24:24,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:24" (1/1) ... [2022-12-14 09:24:24,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:24" (1/1) ... [2022-12-14 09:24:24,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:24" (1/1) ... [2022-12-14 09:24:24,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:24" (1/1) ... [2022-12-14 09:24:24,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:24" (1/1) ... [2022-12-14 09:24:24,495 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:24" (1/1) ... [2022-12-14 09:24:24,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:24" (1/1) ... [2022-12-14 09:24:24,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:24:24,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:24:24,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:24:24,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:24:24,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:24" (1/1) ... [2022-12-14 09:24:24,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:24:24,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780b4e4c-6a37-4a3f-a791-92c5a302ed05/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:24:24,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780b4e4c-6a37-4a3f-a791-92c5a302ed05/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:24:24,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780b4e4c-6a37-4a3f-a791-92c5a302ed05/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:24:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:24:24,566 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-14 09:24:24,567 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-14 09:24:24,567 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-14 09:24:24,567 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-14 09:24:24,567 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-14 09:24:24,567 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-14 09:24:24,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:24:24,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:24:24,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:24:24,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 09:24:24,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 09:24:24,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:24:24,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:24:24,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:24:24,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:24:24,570 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 09:24:24,657 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:24:24,659 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:24:24,880 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:24:24,963 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:24:24,963 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 09:24:24,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:24:24 BoogieIcfgContainer [2022-12-14 09:24:24,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:24:24,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:24:24,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:24:24,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:24:24,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:24:24" (1/3) ... [2022-12-14 09:24:24,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6797b7d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:24:24, skipping insertion in model container [2022-12-14 09:24:24,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:24:24" (2/3) ... [2022-12-14 09:24:24,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6797b7d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:24:24, skipping insertion in model container [2022-12-14 09:24:24,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:24:24" (3/3) ... [2022-12-14 09:24:24,974 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2022-12-14 09:24:24,989 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 09:24:24,999 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:24:24,999 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-12-14 09:24:24,999 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 09:24:25,050 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-14 09:24:25,074 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 09:24:25,084 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 138 places, 130 transitions, 284 flow [2022-12-14 09:24:25,086 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 138 places, 130 transitions, 284 flow [2022-12-14 09:24:25,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 130 transitions, 284 flow [2022-12-14 09:24:25,126 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2022-12-14 09:24:25,126 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-14 09:24:25,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 127 events. 2/127 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-12-14 09:24:25,130 INFO L119 LiptonReduction]: Number of co-enabled transitions 1390 [2022-12-14 09:24:28,557 INFO L134 LiptonReduction]: Checked pairs total: 5967 [2022-12-14 09:24:28,557 INFO L136 LiptonReduction]: Total number of compositions: 116 [2022-12-14 09:24:28,563 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 38 transitions, 100 flow [2022-12-14 09:24:28,616 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1454 states, 1330 states have (on average 3.319548872180451) internal successors, (4415), 1453 states have internal predecessors, (4415), 0 states have call successors, (0), 0 states 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 09:24:28,629 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:24:28,633 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;@489ab021, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:24:28,633 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-12-14 09:24:28,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 1454 states, 1330 states have (on average 3.319548872180451) internal successors, (4415), 1453 states have internal predecessors, (4415), 0 states have call successors, (0), 0 states 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 09:24:28,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 09:24:28,641 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:24:28,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 09:24:28,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-12-14 09:24:28,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:24:28,645 INFO L85 PathProgramCache]: Analyzing trace with hash 564091, now seen corresponding path program 1 times [2022-12-14 09:24:28,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:24:28,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527918049] [2022-12-14 09:24:28,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:24:28,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:24:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:24:28,872 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 09:24:28,872 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:24:28,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527918049] [2022-12-14 09:24:28,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527918049] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:24:28,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:24:28,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:24:28,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123458189] [2022-12-14 09:24:28,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:24:28,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:24:28,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:24:28,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:24:28,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:24:28,912 INFO L87 Difference]: Start difference. First operand has 1454 states, 1330 states have (on average 3.319548872180451) internal successors, (4415), 1453 states have internal predecessors, (4415), 0 states have call successors, (0), 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 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states 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 09:24:29,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:24:29,001 INFO L93 Difference]: Finished difference Result 1382 states and 4177 transitions. [2022-12-14 09:24:29,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:24:29,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-12-14 09:24:29,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:24:29,020 INFO L225 Difference]: With dead ends: 1382 [2022-12-14 09:24:29,020 INFO L226 Difference]: Without dead ends: 1382 [2022-12-14 09:24:29,020 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 09:24:29,023 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:24:29,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:24:29,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2022-12-14 09:24:29,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 1382. [2022-12-14 09:24:29,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 1266 states have (on average 3.2993680884676144) internal successors, (4177), 1381 states have internal predecessors, (4177), 0 states have call successors, (0), 0 states 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 09:24:29,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 4177 transitions. [2022-12-14 09:24:29,114 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 4177 transitions. Word has length 3 [2022-12-14 09:24:29,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:24:29,114 INFO L495 AbstractCegarLoop]: Abstraction has 1382 states and 4177 transitions. [2022-12-14 09:24:29,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states 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 09:24:29,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 4177 transitions. [2022-12-14 09:24:29,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:24:29,115 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:24:29,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:24:29,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:24:29,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-12-14 09:24:29,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:24:29,116 INFO L85 PathProgramCache]: Analyzing trace with hash 542107791, now seen corresponding path program 1 times [2022-12-14 09:24:29,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:24:29,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600038949] [2022-12-14 09:24:29,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:24:29,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:24:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:24:29,228 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 09:24:29,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:24:29,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600038949] [2022-12-14 09:24:29,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600038949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:24:29,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:24:29,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:24:29,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982833796] [2022-12-14 09:24:29,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:24:29,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:24:29,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:24:29,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:24:29,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:24:29,232 INFO L87 Difference]: Start difference. First operand 1382 states and 4177 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states 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 09:24:29,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:24:29,303 INFO L93 Difference]: Finished difference Result 842 states and 2319 transitions. [2022-12-14 09:24:29,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:24:29,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-12-14 09:24:29,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:24:29,307 INFO L225 Difference]: With dead ends: 842 [2022-12-14 09:24:29,307 INFO L226 Difference]: Without dead ends: 840 [2022-12-14 09:24:29,307 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 09:24:29,308 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 16 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:24:29,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:24:29,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2022-12-14 09:24:29,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 840. [2022-12-14 09:24:29,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 762 states have (on average 3.0341207349081363) internal successors, (2312), 839 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states 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 09:24:29,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 2312 transitions. [2022-12-14 09:24:29,325 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 2312 transitions. Word has length 5 [2022-12-14 09:24:29,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:24:29,325 INFO L495 AbstractCegarLoop]: Abstraction has 840 states and 2312 transitions. [2022-12-14 09:24:29,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states 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 09:24:29,326 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 2312 transitions. [2022-12-14 09:24:29,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 09:24:29,326 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:24:29,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 09:24:29,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:24:29,326 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-12-14 09:24:29,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:24:29,327 INFO L85 PathProgramCache]: Analyzing trace with hash -374470039, now seen corresponding path program 1 times [2022-12-14 09:24:29,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:24:29,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451072688] [2022-12-14 09:24:29,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:24:29,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:24:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:24:29,357 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 09:24:29,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:24:29,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451072688] [2022-12-14 09:24:29,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451072688] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:24:29,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:24:29,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:24:29,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312741132] [2022-12-14 09:24:29,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:24:29,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:24:29,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:24:29,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:24:29,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:24:29,359 INFO L87 Difference]: Start difference. First operand 840 states and 2312 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states 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 09:24:29,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:24:29,405 INFO L93 Difference]: Finished difference Result 604 states and 1613 transitions. [2022-12-14 09:24:29,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:24:29,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-12-14 09:24:29,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:24:29,411 INFO L225 Difference]: With dead ends: 604 [2022-12-14 09:24:29,411 INFO L226 Difference]: Without dead ends: 604 [2022-12-14 09:24:29,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 09:24:29,412 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 24 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:24:29,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:24:29,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2022-12-14 09:24:29,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2022-12-14 09:24:29,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 562 states have (on average 2.8701067615658364) internal successors, (1613), 603 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states 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 09:24:29,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 1613 transitions. [2022-12-14 09:24:29,425 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 1613 transitions. Word has length 6 [2022-12-14 09:24:29,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:24:29,426 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 1613 transitions. [2022-12-14 09:24:29,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states 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 09:24:29,426 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 1613 transitions. [2022-12-14 09:24:29,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 09:24:29,427 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:24:29,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 09:24:29,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:24:29,427 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-12-14 09:24:29,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:24:29,427 INFO L85 PathProgramCache]: Analyzing trace with hash -374470038, now seen corresponding path program 1 times [2022-12-14 09:24:29,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:24:29,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181731335] [2022-12-14 09:24:29,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:24:29,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:24:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:24:29,520 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 09:24:29,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:24:29,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181731335] [2022-12-14 09:24:29,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181731335] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:24:29,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:24:29,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:24:29,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937011892] [2022-12-14 09:24:29,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:24:29,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:24:29,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:24:29,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:24:29,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:24:29,522 INFO L87 Difference]: Start difference. First operand 604 states and 1613 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states 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 09:24:29,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:24:29,584 INFO L93 Difference]: Finished difference Result 524 states and 1365 transitions. [2022-12-14 09:24:29,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:24:29,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-12-14 09:24:29,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:24:29,587 INFO L225 Difference]: With dead ends: 524 [2022-12-14 09:24:29,587 INFO L226 Difference]: Without dead ends: 524 [2022-12-14 09:24:29,587 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 09:24:29,588 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 20 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:24:29,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 3 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:24:29,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-12-14 09:24:29,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 524. [2022-12-14 09:24:29,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 488 states have (on average 2.7971311475409837) internal successors, (1365), 523 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states 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 09:24:29,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 1365 transitions. [2022-12-14 09:24:29,600 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 1365 transitions. Word has length 6 [2022-12-14 09:24:29,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:24:29,600 INFO L495 AbstractCegarLoop]: Abstraction has 524 states and 1365 transitions. [2022-12-14 09:24:29,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states 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 09:24:29,601 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 1365 transitions. [2022-12-14 09:24:29,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 09:24:29,601 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:24:29,601 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:24:29,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:24:29,602 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-12-14 09:24:29,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:24:29,602 INFO L85 PathProgramCache]: Analyzing trace with hash 833245205, now seen corresponding path program 1 times [2022-12-14 09:24:29,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:24:29,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557082218] [2022-12-14 09:24:29,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:24:29,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:24:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:24:29,632 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 09:24:29,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:24:29,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557082218] [2022-12-14 09:24:29,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557082218] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:24:29,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:24:29,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:24:29,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26266961] [2022-12-14 09:24:29,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:24:29,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:24:29,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:24:29,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:24:29,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:24:29,634 INFO L87 Difference]: Start difference. First operand 524 states and 1365 transitions. Second operand has 3 states, 2 states have (on average 4.5) 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 09:24:29,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:24:29,672 INFO L93 Difference]: Finished difference Result 416 states and 1095 transitions. [2022-12-14 09:24:29,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:24:29,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) 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 09:24:29,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:24:29,675 INFO L225 Difference]: With dead ends: 416 [2022-12-14 09:24:29,675 INFO L226 Difference]: Without dead ends: 416 [2022-12-14 09:24:29,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 09:24:29,677 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 20 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:24:29,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:24:29,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-12-14 09:24:29,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2022-12-14 09:24:29,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 398 states have (on average 2.751256281407035) internal successors, (1095), 415 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states 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 09:24:29,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 1095 transitions. [2022-12-14 09:24:29,690 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 1095 transitions. Word has length 9 [2022-12-14 09:24:29,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:24:29,690 INFO L495 AbstractCegarLoop]: Abstraction has 416 states and 1095 transitions. [2022-12-14 09:24:29,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) 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 09:24:29,691 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 1095 transitions. [2022-12-14 09:24:29,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 09:24:29,692 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:24:29,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:24:29,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:24:29,692 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-12-14 09:24:29,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:24:29,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1806302969, now seen corresponding path program 1 times [2022-12-14 09:24:29,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:24:29,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610557704] [2022-12-14 09:24:29,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:24:29,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:24:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:24:29,778 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 09:24:29,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:24:29,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610557704] [2022-12-14 09:24:29,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610557704] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:24:29,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:24:29,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:24:29,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063574105] [2022-12-14 09:24:29,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:24:29,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:24:29,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:24:29,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:24:29,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:24:29,780 INFO L87 Difference]: Start difference. First operand 416 states and 1095 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 09:24:29,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:24:29,850 INFO L93 Difference]: Finished difference Result 320 states and 826 transitions. [2022-12-14 09:24:29,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:24:29,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 09:24:29,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:24:29,852 INFO L225 Difference]: With dead ends: 320 [2022-12-14 09:24:29,852 INFO L226 Difference]: Without dead ends: 320 [2022-12-14 09:24:29,852 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 09:24:29,853 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 35 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:24:29,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 4 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:24:29,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2022-12-14 09:24:29,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2022-12-14 09:24:29,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 314 states have (on average 2.6305732484076434) internal successors, (826), 319 states have internal predecessors, (826), 0 states have call successors, (0), 0 states 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 09:24:29,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 826 transitions. [2022-12-14 09:24:29,859 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 826 transitions. Word has length 9 [2022-12-14 09:24:29,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:24:29,859 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 826 transitions. [2022-12-14 09:24:29,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 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 09:24:29,860 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 826 transitions. [2022-12-14 09:24:29,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 09:24:29,860 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:24:29,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:24:29,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:24:29,861 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-12-14 09:24:29,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:24:29,861 INFO L85 PathProgramCache]: Analyzing trace with hash 60798014, now seen corresponding path program 1 times [2022-12-14 09:24:29,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:24:29,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596625577] [2022-12-14 09:24:29,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:24:29,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:24:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:24:29,959 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 09:24:29,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:24:29,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596625577] [2022-12-14 09:24:29,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596625577] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:24:29,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:24:29,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:24:29,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992476212] [2022-12-14 09:24:29,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:24:29,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:24:29,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:24:29,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:24:29,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:24:29,961 INFO L87 Difference]: Start difference. First operand 320 states and 826 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 09:24:30,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:24:30,087 INFO L93 Difference]: Finished difference Result 578 states and 1409 transitions. [2022-12-14 09:24:30,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:24:30,088 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-12-14 09:24:30,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:24:30,092 INFO L225 Difference]: With dead ends: 578 [2022-12-14 09:24:30,092 INFO L226 Difference]: Without dead ends: 530 [2022-12-14 09:24:30,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-12-14 09:24:30,093 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 87 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:24:30,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 6 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:24:30,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2022-12-14 09:24:30,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 434. [2022-12-14 09:24:30,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 422 states have (on average 2.514218009478673) internal successors, (1061), 433 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states 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 09:24:30,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 1061 transitions. [2022-12-14 09:24:30,102 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 1061 transitions. Word has length 10 [2022-12-14 09:24:30,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:24:30,102 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 1061 transitions. [2022-12-14 09:24:30,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 09:24:30,102 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 1061 transitions. [2022-12-14 09:24:30,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 09:24:30,103 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:24:30,103 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:24:30,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:24:30,104 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-12-14 09:24:30,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:24:30,104 INFO L85 PathProgramCache]: Analyzing trace with hash 748493607, now seen corresponding path program 1 times [2022-12-14 09:24:30,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:24:30,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123816637] [2022-12-14 09:24:30,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:24:30,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:24:30,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:24:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:24:30,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:24:30,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123816637] [2022-12-14 09:24:30,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123816637] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:24:30,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:24:30,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:24:30,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587832228] [2022-12-14 09:24:30,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:24:30,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:24:30,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:24:30,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:24:30,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:24:30,190 INFO L87 Difference]: Start difference. First operand 434 states and 1061 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 09:24:30,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:24:30,311 INFO L93 Difference]: Finished difference Result 392 states and 1035 transitions. [2022-12-14 09:24:30,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:24:30,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2022-12-14 09:24:30,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:24:30,315 INFO L225 Difference]: With dead ends: 392 [2022-12-14 09:24:30,315 INFO L226 Difference]: Without dead ends: 354 [2022-12-14 09:24:30,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-14 09:24:30,316 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 63 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:24:30,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 6 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:24:30,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-12-14 09:24:30,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 258. [2022-12-14 09:24:30,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 255 states have (on average 2.545098039215686) internal successors, (649), 257 states have internal predecessors, (649), 0 states have call successors, (0), 0 states 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 09:24:30,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 649 transitions. [2022-12-14 09:24:30,322 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 649 transitions. Word has length 10 [2022-12-14 09:24:30,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:24:30,322 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 649 transitions. [2022-12-14 09:24:30,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states 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 09:24:30,322 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 649 transitions. [2022-12-14 09:24:30,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 09:24:30,323 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:24:30,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:24:30,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:24:30,324 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-12-14 09:24:30,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:24:30,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1049312878, now seen corresponding path program 1 times [2022-12-14 09:24:30,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:24:30,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652285270] [2022-12-14 09:24:30,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:24:30,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:24:30,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:24:30,444 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 09:24:30,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:24:30,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652285270] [2022-12-14 09:24:30,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652285270] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:24:30,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:24:30,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:24:30,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422846763] [2022-12-14 09:24:30,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:24:30,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:24:30,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:24:30,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:24:30,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:24:30,446 INFO L87 Difference]: Start difference. First operand 258 states and 649 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states 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 09:24:30,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:24:30,628 INFO L93 Difference]: Finished difference Result 450 states and 1081 transitions. [2022-12-14 09:24:30,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:24:30,629 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-12-14 09:24:30,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:24:30,631 INFO L225 Difference]: With dead ends: 450 [2022-12-14 09:24:30,631 INFO L226 Difference]: Without dead ends: 332 [2022-12-14 09:24:30,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-12-14 09:24:30,632 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 129 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:24:30,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 8 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:24:30,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-12-14 09:24:30,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 218. [2022-12-14 09:24:30,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 215 states have (on average 2.5209302325581397) internal successors, (542), 217 states have internal predecessors, (542), 0 states have call successors, (0), 0 states 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 09:24:30,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 542 transitions. [2022-12-14 09:24:30,639 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 542 transitions. Word has length 14 [2022-12-14 09:24:30,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:24:30,639 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 542 transitions. [2022-12-14 09:24:30,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states 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 09:24:30,640 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 542 transitions. [2022-12-14 09:24:30,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 09:24:30,640 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:24:30,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:24:30,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:24:30,640 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-12-14 09:24:30,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:24:30,641 INFO L85 PathProgramCache]: Analyzing trace with hash 466117232, now seen corresponding path program 1 times [2022-12-14 09:24:30,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:24:30,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235413464] [2022-12-14 09:24:30,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:24:30,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:24:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:24:30,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:24:30,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:24:30,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235413464] [2022-12-14 09:24:30,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235413464] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:24:30,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:24:30,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:24:30,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575530086] [2022-12-14 09:24:30,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:24:30,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:24:30,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:24:30,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:24:30,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:24:30,754 INFO L87 Difference]: Start difference. First operand 218 states and 542 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states 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 09:24:30,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:24:30,886 INFO L93 Difference]: Finished difference Result 320 states and 807 transitions. [2022-12-14 09:24:30,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:24:30,886 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-12-14 09:24:30,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:24:30,888 INFO L225 Difference]: With dead ends: 320 [2022-12-14 09:24:30,888 INFO L226 Difference]: Without dead ends: 242 [2022-12-14 09:24:30,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-12-14 09:24:30,889 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 110 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:24:30,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 9 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:24:30,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-12-14 09:24:30,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 198. [2022-12-14 09:24:30,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 195 states have (on average 2.3384615384615386) internal successors, (456), 197 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 09:24:30,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 456 transitions. [2022-12-14 09:24:30,895 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 456 transitions. Word has length 14 [2022-12-14 09:24:30,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:24:30,896 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 456 transitions. [2022-12-14 09:24:30,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states 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 09:24:30,896 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 456 transitions. [2022-12-14 09:24:30,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 09:24:30,896 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:24:30,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:24:30,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 09:24:30,897 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-12-14 09:24:30,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:24:30,897 INFO L85 PathProgramCache]: Analyzing trace with hash 40211642, now seen corresponding path program 2 times [2022-12-14 09:24:30,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:24:30,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329110393] [2022-12-14 09:24:30,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:24:30,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:24:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:24:31,027 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 09:24:31,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:24:31,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329110393] [2022-12-14 09:24:31,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329110393] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:24:31,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:24:31,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 09:24:31,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252421903] [2022-12-14 09:24:31,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:24:31,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 09:24:31,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:24:31,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 09:24:31,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:24:31,029 INFO L87 Difference]: Start difference. First operand 198 states and 456 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states 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 09:24:31,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:24:31,181 INFO L93 Difference]: Finished difference Result 230 states and 572 transitions. [2022-12-14 09:24:31,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 09:24:31,182 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-12-14 09:24:31,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:24:31,182 INFO L225 Difference]: With dead ends: 230 [2022-12-14 09:24:31,182 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 09:24:31,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-12-14 09:24:31,183 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 129 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:24:31,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 9 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:24:31,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 09:24:31,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 09:24:31,184 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 09:24:31,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 09:24:31,184 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-12-14 09:24:31,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:24:31,184 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 09:24:31,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states 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 09:24:31,184 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 09:24:31,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 09:24:31,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 27 remaining) [2022-12-14 09:24:31,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 27 remaining) [2022-12-14 09:24:31,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 27 remaining) [2022-12-14 09:24:31,187 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 27 remaining) [2022-12-14 09:24:31,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 27 remaining) [2022-12-14 09:24:31,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 27 remaining) [2022-12-14 09:24:31,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 27 remaining) [2022-12-14 09:24:31,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 27 remaining) [2022-12-14 09:24:31,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 27 remaining) [2022-12-14 09:24:31,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 27 remaining) [2022-12-14 09:24:31,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 27 remaining) [2022-12-14 09:24:31,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 27 remaining) [2022-12-14 09:24:31,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 27 remaining) [2022-12-14 09:24:31,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 27 remaining) [2022-12-14 09:24:31,188 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 27 remaining) [2022-12-14 09:24:31,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 27 remaining) [2022-12-14 09:24:31,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 27 remaining) [2022-12-14 09:24:31,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 27 remaining) [2022-12-14 09:24:31,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 27 remaining) [2022-12-14 09:24:31,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 27 remaining) [2022-12-14 09:24:31,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 27 remaining) [2022-12-14 09:24:31,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 27 remaining) [2022-12-14 09:24:31,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 27 remaining) [2022-12-14 09:24:31,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 27 remaining) [2022-12-14 09:24:31,189 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 27 remaining) [2022-12-14 09:24:31,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 27 remaining) [2022-12-14 09:24:31,190 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 27 remaining) [2022-12-14 09:24:31,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 09:24:31,191 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:24:31,195 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 09:24:31,195 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:24:31,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:24:31 BasicIcfg [2022-12-14 09:24:31,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:24:31,197 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:24:31,197 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:24:31,197 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:24:31,198 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:24:24" (3/4) ... [2022-12-14 09:24:31,200 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 09:24:31,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-14 09:24:31,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-14 09:24:31,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-12-14 09:24:31,207 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-14 09:24:31,207 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 09:24:31,207 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 09:24:31,207 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 09:24:31,230 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780b4e4c-6a37-4a3f-a791-92c5a302ed05/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 09:24:31,230 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:24:31,231 INFO L158 Benchmark]: Toolchain (without parser) took 7019.86ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 109.4MB in the beginning and 117.0MB in the end (delta: -7.6MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2022-12-14 09:24:31,231 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:24:31,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.84ms. Allocated memory is still 142.6MB. Free memory was 109.0MB in the beginning and 95.3MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 09:24:31,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.11ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 93.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:24:31,232 INFO L158 Benchmark]: Boogie Preprocessor took 20.42ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 92.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:24:31,232 INFO L158 Benchmark]: RCFGBuilder took 467.19ms. Allocated memory is still 142.6MB. Free memory was 92.1MB in the beginning and 67.7MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-14 09:24:31,233 INFO L158 Benchmark]: TraceAbstraction took 6228.81ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 66.9MB in the beginning and 119.1MB in the end (delta: -52.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:24:31,233 INFO L158 Benchmark]: Witness Printer took 33.32ms. Allocated memory is still 172.0MB. Free memory was 119.1MB in the beginning and 117.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:24:31,235 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.84ms. Allocated memory is still 142.6MB. Free memory was 109.0MB in the beginning and 95.3MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.11ms. Allocated memory is still 142.6MB. Free memory was 95.3MB in the beginning and 93.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.42ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 92.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 467.19ms. Allocated memory is still 142.6MB. Free memory was 92.1MB in the beginning and 67.7MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 6228.81ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 66.9MB in the beginning and 119.1MB in the end (delta: -52.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 33.32ms. Allocated memory is still 172.0MB. Free memory was 119.1MB in the beginning and 117.0MB in the end (delta: 2.1MB). 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: 3.5s, 138 PlacesBefore, 48 PlacesAfterwards, 130 TransitionsBefore, 38 TransitionsAfterwards, 1390 CoEnabledTransitionPairs, 7 FixpointIterations, 73 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 116 TotalNumberOfCompositions, 5967 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2340, independent: 2137, independent conditional: 0, independent unconditional: 2137, dependent: 203, dependent conditional: 0, dependent unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 968, independent: 917, independent conditional: 0, independent unconditional: 917, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 968, independent: 878, independent conditional: 0, independent unconditional: 878, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 90, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 182, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 109, dependent conditional: 0, dependent unconditional: 109, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2340, independent: 1220, independent conditional: 0, independent unconditional: 1220, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 968, unknown conditional: 0, unknown unconditional: 968] , Statistics on independence cache: Total cache size (in pairs): 208, Positive cache size: 184, Positive conditional cache size: 0, Positive unconditional cache size: 184, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, 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: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: 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 7 procedures, 166 locations, 27 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 638 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 638 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1160 IncrementalHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 154 mSolverCounterUnsat, 13 mSDtfsCounter, 1160 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1454occurred in iteration=0, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 350 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 347 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 09:24:31,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_780b4e4c-6a37-4a3f-a791-92c5a302ed05/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