./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_rmo.i --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_86020887-6d77-46a8-9f29-e5467dce9943/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86020887-6d77-46a8-9f29-e5467dce9943/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_86020887-6d77-46a8-9f29-e5467dce9943/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86020887-6d77-46a8-9f29-e5467dce9943/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_rmo.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86020887-6d77-46a8-9f29-e5467dce9943/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_86020887-6d77-46a8-9f29-e5467dce9943/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 f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4 --- 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 07:04:48,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:04:48,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:04:48,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:04:48,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:04:48,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:04:48,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:04:48,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:04:48,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:04:48,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:04:48,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:04:48,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:04:48,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:04:48,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:04:48,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:04:48,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:04:48,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:04:48,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:04:48,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:04:48,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:04:48,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:04:48,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:04:48,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:04:48,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:04:48,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:04:48,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:04:48,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:04:48,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:04:48,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:04:48,674 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:04:48,674 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:04:48,675 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:04:48,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:04:48,676 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:04:48,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:04:48,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:04:48,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:04:48,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:04:48,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:04:48,679 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:04:48,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:04:48,680 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86020887-6d77-46a8-9f29-e5467dce9943/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 07:04:48,701 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:04:48,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:04:48,707 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:04:48,707 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:04:48,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:04:48,708 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:04:48,708 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:04:48,708 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:04:48,709 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:04:48,709 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:04:48,709 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:04:48,709 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:04:48,709 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:04:48,710 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:04:48,710 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:04:48,710 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:04:48,710 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:04:48,710 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:04:48,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:04:48,711 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 07:04:48,711 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 07:04:48,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:04:48,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 07:04:48,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:04:48,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:04:48,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:04:48,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:04:48,712 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 07:04:48,712 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 07:04:48,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:04:48,713 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:04:48,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:04:48,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:04:48,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:04:48,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:04:48,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:04:48,713 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:04:48,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:04:48,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:04:48,714 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:04:48,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:04:48,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:04:48,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:04:48,714 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_86020887-6d77-46a8-9f29-e5467dce9943/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86020887-6d77-46a8-9f29-e5467dce9943/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4 [2022-12-14 07:04:48,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:04:48,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:04:48,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:04:48,892 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:04:48,893 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:04:48,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86020887-6d77-46a8-9f29-e5467dce9943/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-wmm/thin002_rmo.i [2022-12-14 07:04:51,381 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:04:51,600 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:04:51,600 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86020887-6d77-46a8-9f29-e5467dce9943/sv-benchmarks/c/pthread-wmm/thin002_rmo.i [2022-12-14 07:04:51,613 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86020887-6d77-46a8-9f29-e5467dce9943/bin/utaipan-gh47qXpMRh/data/4396eb2fe/b58f0baa22ba4146b41cef98d2141a13/FLAG577774777 [2022-12-14 07:04:51,985 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86020887-6d77-46a8-9f29-e5467dce9943/bin/utaipan-gh47qXpMRh/data/4396eb2fe/b58f0baa22ba4146b41cef98d2141a13 [2022-12-14 07:04:51,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:04:51,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:04:51,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:04:51,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:04:51,997 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:04:51,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:04:51" (1/1) ... [2022-12-14 07:04:51,999 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1342204e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:51, skipping insertion in model container [2022-12-14 07:04:51,999 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:04:51" (1/1) ... [2022-12-14 07:04:52,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:04:52,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:04:52,169 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_86020887-6d77-46a8-9f29-e5467dce9943/sv-benchmarks/c/pthread-wmm/thin002_rmo.i[988,1001] [2022-12-14 07:04:52,280 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,291 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,292 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,293 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,295 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,296 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,297 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,297 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,297 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,298 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,298 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,298 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,299 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,300 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,301 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,302 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,303 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,306 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,313 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,316 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,317 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,319 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:04:52,330 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:04:52,339 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_86020887-6d77-46a8-9f29-e5467dce9943/sv-benchmarks/c/pthread-wmm/thin002_rmo.i[988,1001] [2022-12-14 07:04:52,363 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,371 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,372 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,373 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,374 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,375 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,376 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,377 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,378 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,379 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,380 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,387 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 07:04:52,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 07:04:52,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:04:52,418 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:04:52,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:52 WrapperNode [2022-12-14 07:04:52,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:04:52,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:04:52,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:04:52,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:04:52,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:52" (1/1) ... [2022-12-14 07:04:52,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:52" (1/1) ... [2022-12-14 07:04:52,455 INFO L138 Inliner]: procedures = 177, calls = 80, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 154 [2022-12-14 07:04:52,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:04:52,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:04:52,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:04:52,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:04:52,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:52" (1/1) ... [2022-12-14 07:04:52,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:52" (1/1) ... [2022-12-14 07:04:52,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:52" (1/1) ... [2022-12-14 07:04:52,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:52" (1/1) ... [2022-12-14 07:04:52,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:52" (1/1) ... [2022-12-14 07:04:52,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:52" (1/1) ... [2022-12-14 07:04:52,474 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:52" (1/1) ... [2022-12-14 07:04:52,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:52" (1/1) ... [2022-12-14 07:04:52,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:04:52,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:04:52,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:04:52,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:04:52,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:52" (1/1) ... [2022-12-14 07:04:52,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:04:52,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86020887-6d77-46a8-9f29-e5467dce9943/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:04:52,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86020887-6d77-46a8-9f29-e5467dce9943/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:04:52,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86020887-6d77-46a8-9f29-e5467dce9943/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:04:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:04:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:04:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 07:04:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:04:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:04:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:04:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-14 07:04:52,527 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-14 07:04:52,528 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-14 07:04:52,528 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-14 07:04:52,528 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-14 07:04:52,528 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-14 07:04:52,528 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-12-14 07:04:52,528 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-12-14 07:04:52,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:04:52,528 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 07:04:52,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:04:52,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:04:52,529 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 07:04:52,634 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:04:52,635 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:04:52,946 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:04:53,106 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:04:53,106 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 07:04:53,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:04:53 BoogieIcfgContainer [2022-12-14 07:04:53,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:04:53,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:04:53,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:04:53,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:04:53,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:04:51" (1/3) ... [2022-12-14 07:04:53,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6aa84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:04:53, skipping insertion in model container [2022-12-14 07:04:53,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:04:52" (2/3) ... [2022-12-14 07:04:53,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6aa84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:04:53, skipping insertion in model container [2022-12-14 07:04:53,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:04:53" (3/3) ... [2022-12-14 07:04:53,115 INFO L112 eAbstractionObserver]: Analyzing ICFG thin002_rmo.i [2022-12-14 07:04:53,122 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 07:04:53,130 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:04:53,130 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 07:04:53,130 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 07:04:53,174 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 07:04:53,198 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 07:04:53,208 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 172 places, 161 transitions, 342 flow [2022-12-14 07:04:53,210 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 172 places, 161 transitions, 342 flow [2022-12-14 07:04:53,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 172 places, 161 transitions, 342 flow [2022-12-14 07:04:53,254 INFO L130 PetriNetUnfolder]: 2/157 cut-off events. [2022-12-14 07:04:53,254 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 07:04:53,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 157 events. 2/157 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 85 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2022-12-14 07:04:53,261 INFO L119 LiptonReduction]: Number of co-enabled transitions 3732 [2022-12-14 07:05:00,172 INFO L134 LiptonReduction]: Checked pairs total: 13484 [2022-12-14 07:05:00,172 INFO L136 LiptonReduction]: Total number of compositions: 140 [2022-12-14 07:05:00,177 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 37 transitions, 94 flow [2022-12-14 07:05:00,368 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6562 states, 6482 states have (on average 4.328910829990743) internal successors, (28060), 6561 states have internal predecessors, (28060), 0 states have call successors, (0), 0 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 07:05:00,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:05:00,386 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;@336db32d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:05:00,386 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-12-14 07:05:00,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 6562 states, 6482 states have (on average 4.328910829990743) internal successors, (28060), 6561 states have internal predecessors, (28060), 0 states have call successors, (0), 0 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 07:05:00,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 07:05:00,408 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:05:00,408 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 07:05:00,409 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 07:05:00,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:05:00,413 INFO L85 PathProgramCache]: Analyzing trace with hash 23006717, now seen corresponding path program 1 times [2022-12-14 07:05:00,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:05:00,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541670573] [2022-12-14 07:05:00,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:05:00,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:05:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:05:00,684 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 07:05:00,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:05:00,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541670573] [2022-12-14 07:05:00,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541670573] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:05:00,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:05:00,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 07:05:00,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755274820] [2022-12-14 07:05:00,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:05:00,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:05:00,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:05:00,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:05:00,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:05:00,732 INFO L87 Difference]: Start difference. First operand has 6562 states, 6482 states have (on average 4.328910829990743) internal successors, (28060), 6561 states have internal predecessors, (28060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:05:00,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:05:00,870 INFO L93 Difference]: Finished difference Result 3438 states and 11843 transitions. [2022-12-14 07:05:00,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:05:00,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 07:05:00,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:05:00,899 INFO L225 Difference]: With dead ends: 3438 [2022-12-14 07:05:00,900 INFO L226 Difference]: Without dead ends: 3438 [2022-12-14 07:05:00,900 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 07:05:00,902 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:05:00,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:05:00,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3438 states. [2022-12-14 07:05:01,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3438 to 3438. [2022-12-14 07:05:01,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3438 states, 3374 states have (on average 3.510077059869591) internal successors, (11843), 3437 states have internal predecessors, (11843), 0 states have call successors, (0), 0 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 07:05:01,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3438 states to 3438 states and 11843 transitions. [2022-12-14 07:05:01,061 INFO L78 Accepts]: Start accepts. Automaton has 3438 states and 11843 transitions. Word has length 4 [2022-12-14 07:05:01,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:05:01,061 INFO L495 AbstractCegarLoop]: Abstraction has 3438 states and 11843 transitions. [2022-12-14 07:05:01,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:05:01,062 INFO L276 IsEmpty]: Start isEmpty. Operand 3438 states and 11843 transitions. [2022-12-14 07:05:01,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 07:05:01,062 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:05:01,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:05:01,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:05:01,063 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 07:05:01,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:05:01,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1303681588, now seen corresponding path program 1 times [2022-12-14 07:05:01,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:05:01,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147573999] [2022-12-14 07:05:01,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:05:01,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:05:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:05:01,158 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 07:05:01,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:05:01,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147573999] [2022-12-14 07:05:01,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147573999] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:05:01,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:05:01,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:05:01,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654263028] [2022-12-14 07:05:01,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:05:01,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:05:01,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:05:01,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:05:01,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:05:01,161 INFO L87 Difference]: Start difference. First operand 3438 states and 11843 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:05:01,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:05:01,258 INFO L93 Difference]: Finished difference Result 2046 states and 6941 transitions. [2022-12-14 07:05:01,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:05:01,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 07:05:01,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:05:01,268 INFO L225 Difference]: With dead ends: 2046 [2022-12-14 07:05:01,268 INFO L226 Difference]: Without dead ends: 2046 [2022-12-14 07:05:01,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:05:01,270 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 32 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:05:01,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 16 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:05:01,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2046 states. [2022-12-14 07:05:01,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2046 to 2046. [2022-12-14 07:05:01,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2046 states, 2032 states have (on average 3.4158464566929134) internal successors, (6941), 2045 states have internal predecessors, (6941), 0 states have call successors, (0), 0 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 07:05:01,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 6941 transitions. [2022-12-14 07:05:01,338 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 6941 transitions. Word has length 9 [2022-12-14 07:05:01,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:05:01,339 INFO L495 AbstractCegarLoop]: Abstraction has 2046 states and 6941 transitions. [2022-12-14 07:05:01,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:05:01,339 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 6941 transitions. [2022-12-14 07:05:01,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 07:05:01,340 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:05:01,340 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:05:01,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:05:01,341 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 07:05:01,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:05:01,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1759521164, now seen corresponding path program 1 times [2022-12-14 07:05:01,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:05:01,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612155799] [2022-12-14 07:05:01,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:05:01,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:05:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:05:01,410 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 07:05:01,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:05:01,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612155799] [2022-12-14 07:05:01,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612155799] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:05:01,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:05:01,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 07:05:01,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452047860] [2022-12-14 07:05:01,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:05:01,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 07:05:01,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:05:01,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 07:05:01,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 07:05:01,412 INFO L87 Difference]: Start difference. First operand 2046 states and 6941 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 07:05:01,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:05:01,493 INFO L93 Difference]: Finished difference Result 919 states and 2652 transitions. [2022-12-14 07:05:01,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 07:05:01,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 07:05:01,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:05:01,496 INFO L225 Difference]: With dead ends: 919 [2022-12-14 07:05:01,496 INFO L226 Difference]: Without dead ends: 919 [2022-12-14 07:05:01,497 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 07:05:01,498 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 33 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:05:01,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 12 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:05:01,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-12-14 07:05:01,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2022-12-14 07:05:01,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 909 states have (on average 2.9174917491749173) internal successors, (2652), 918 states have internal predecessors, (2652), 0 states have call successors, (0), 0 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 07:05:01,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 2652 transitions. [2022-12-14 07:05:01,518 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 2652 transitions. Word has length 10 [2022-12-14 07:05:01,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:05:01,518 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 2652 transitions. [2022-12-14 07:05:01,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 07:05:01,518 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 2652 transitions. [2022-12-14 07:05:01,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 07:05:01,521 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:05:01,521 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:05:01,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:05:01,521 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 07:05:01,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:05:01,522 INFO L85 PathProgramCache]: Analyzing trace with hash 748881408, now seen corresponding path program 1 times [2022-12-14 07:05:01,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:05:01,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433149960] [2022-12-14 07:05:01,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:05:01,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:05:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:05:01,592 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 07:05:01,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:05:01,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433149960] [2022-12-14 07:05:01,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433149960] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:05:01,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:05:01,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:05:01,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604105404] [2022-12-14 07:05:01,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:05:01,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 07:05:01,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:05:01,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 07:05:01,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 07:05:01,594 INFO L87 Difference]: Start difference. First operand 919 states and 2652 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:05:01,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:05:01,688 INFO L93 Difference]: Finished difference Result 544 states and 1578 transitions. [2022-12-14 07:05:01,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 07:05:01,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-12-14 07:05:01,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:05:01,690 INFO L225 Difference]: With dead ends: 544 [2022-12-14 07:05:01,690 INFO L226 Difference]: Without dead ends: 544 [2022-12-14 07:05:01,691 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 07:05:01,691 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 38 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:05:01,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 16 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:05:01,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-12-14 07:05:01,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 544. [2022-12-14 07:05:01,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 540 states have (on average 2.922222222222222) internal successors, (1578), 543 states have internal predecessors, (1578), 0 states have call successors, (0), 0 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 07:05:01,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 1578 transitions. [2022-12-14 07:05:01,701 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 1578 transitions. Word has length 15 [2022-12-14 07:05:01,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:05:01,702 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 1578 transitions. [2022-12-14 07:05:01,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 07:05:01,702 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 1578 transitions. [2022-12-14 07:05:01,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 07:05:01,703 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:05:01,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:05:01,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 07:05:01,704 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-12-14 07:05:01,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:05:01,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1431970985, now seen corresponding path program 1 times [2022-12-14 07:05:01,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:05:01,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572234249] [2022-12-14 07:05:01,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:05:01,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:05:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:05:01,794 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 07:05:01,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:05:01,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572234249] [2022-12-14 07:05:01,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572234249] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:05:01,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:05:01,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 07:05:01,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067145497] [2022-12-14 07:05:01,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:05:01,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 07:05:01,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:05:01,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 07:05:01,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:05:01,796 INFO L87 Difference]: Start difference. First operand 544 states and 1578 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 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 07:05:01,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:05:01,880 INFO L93 Difference]: Finished difference Result 489 states and 1484 transitions. [2022-12-14 07:05:01,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 07:05:01,881 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2022-12-14 07:05:01,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:05:01,881 INFO L225 Difference]: With dead ends: 489 [2022-12-14 07:05:01,881 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 07:05:01,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-14 07:05:01,882 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 62 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 07:05:01,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 16 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 07:05:01,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 07:05:01,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 07:05:01,883 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 07:05:01,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 07:05:01,883 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2022-12-14 07:05:01,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:05:01,883 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 07:05:01,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 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 07:05:01,883 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 07:05:01,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 07:05:01,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-12-14 07:05:01,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-12-14 07:05:01,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-12-14 07:05:01,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-12-14 07:05:01,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-12-14 07:05:01,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-12-14 07:05:01,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-12-14 07:05:01,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-12-14 07:05:01,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-12-14 07:05:01,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-12-14 07:05:01,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-12-14 07:05:01,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-12-14 07:05:01,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-12-14 07:05:01,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-12-14 07:05:01,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-12-14 07:05:01,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-12-14 07:05:01,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-12-14 07:05:01,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-12-14 07:05:01,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-12-14 07:05:01,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-12-14 07:05:01,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 07:05:01,891 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 07:05:01,895 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 07:05:01,895 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 07:05:01,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 07:05:01 BasicIcfg [2022-12-14 07:05:01,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 07:05:01,898 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 07:05:01,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 07:05:01,898 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 07:05:01,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:04:53" (3/4) ... [2022-12-14 07:05:01,900 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 07:05:01,904 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-14 07:05:01,904 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-14 07:05:01,904 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-14 07:05:01,904 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-12-14 07:05:01,908 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2022-12-14 07:05:01,909 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-14 07:05:01,909 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 07:05:01,909 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 07:05:01,937 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86020887-6d77-46a8-9f29-e5467dce9943/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 07:05:01,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 07:05:01,937 INFO L158 Benchmark]: Toolchain (without parser) took 9946.91ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 98.1MB in the beginning and 69.7MB in the end (delta: 28.4MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2022-12-14 07:05:01,938 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 136.3MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 07:05:01,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.71ms. Allocated memory is still 136.3MB. Free memory was 98.1MB in the beginning and 70.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 07:05:01,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.67ms. Allocated memory is still 136.3MB. Free memory was 70.8MB in the beginning and 68.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:05:01,938 INFO L158 Benchmark]: Boogie Preprocessor took 22.36ms. Allocated memory is still 136.3MB. Free memory was 68.6MB in the beginning and 66.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 07:05:01,938 INFO L158 Benchmark]: RCFGBuilder took 630.15ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 66.2MB in the beginning and 115.1MB in the end (delta: -48.9MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2022-12-14 07:05:01,939 INFO L158 Benchmark]: TraceAbstraction took 8786.89ms. Allocated memory is still 169.9MB. Free memory was 114.0MB in the beginning and 72.8MB in the end (delta: 41.2MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2022-12-14 07:05:01,939 INFO L158 Benchmark]: Witness Printer took 39.55ms. Allocated memory is still 169.9MB. Free memory was 72.8MB in the beginning and 69.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 07:05:01,940 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 136.3MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 426.71ms. Allocated memory is still 136.3MB. Free memory was 98.1MB in the beginning and 70.8MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.67ms. Allocated memory is still 136.3MB. Free memory was 70.8MB in the beginning and 68.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.36ms. Allocated memory is still 136.3MB. Free memory was 68.6MB in the beginning and 66.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 630.15ms. Allocated memory was 136.3MB in the beginning and 169.9MB in the end (delta: 33.6MB). Free memory was 66.2MB in the beginning and 115.1MB in the end (delta: -48.9MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8786.89ms. Allocated memory is still 169.9MB. Free memory was 114.0MB in the beginning and 72.8MB in the end (delta: 41.2MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. * Witness Printer took 39.55ms. Allocated memory is still 169.9MB. Free memory was 72.8MB in the beginning and 69.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.0s, 172 PlacesBefore, 49 PlacesAfterwards, 161 TransitionsBefore, 37 TransitionsAfterwards, 3732 CoEnabledTransitionPairs, 8 FixpointIterations, 67 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 1 ChoiceCompositions, 140 TotalNumberOfCompositions, 13484 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6710, independent: 6330, independent conditional: 0, independent unconditional: 6330, dependent: 380, dependent conditional: 0, dependent unconditional: 380, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2671, independent: 2606, independent conditional: 0, independent unconditional: 2606, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2671, independent: 2543, independent conditional: 0, independent unconditional: 2543, dependent: 128, dependent conditional: 0, dependent unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 128, independent: 63, independent conditional: 0, independent unconditional: 63, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 432, independent: 79, independent conditional: 0, independent unconditional: 79, dependent: 353, dependent conditional: 0, dependent unconditional: 353, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6710, independent: 3724, independent conditional: 0, independent unconditional: 3724, dependent: 315, dependent conditional: 0, dependent unconditional: 315, unknown: 2671, unknown conditional: 0, unknown unconditional: 2671] , Statistics on independence cache: Total cache size (in pairs): 364, Positive cache size: 336, Positive conditional cache size: 0, Positive unconditional cache size: 336, Negative cache size: 28, Negative conditional cache size: 0, Negative unconditional cache size: 28, 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: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 795]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 825]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 825]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 845]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 845]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 201 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 8.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 179 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 324 IncrementalHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 24 mSDtfsCounter, 324 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6562occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 07:05:01,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86020887-6d77-46a8-9f29-e5467dce9943/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