./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix003.oepc.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_ccb835a4-626b-494a-b0a5-84b05a766cd4/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb835a4-626b-494a-b0a5-84b05a766cd4/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_ccb835a4-626b-494a-b0a5-84b05a766cd4/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb835a4-626b-494a-b0a5-84b05a766cd4/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix003.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb835a4-626b-494a-b0a5-84b05a766cd4/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_ccb835a4-626b-494a-b0a5-84b05a766cd4/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 929f303f9fec34ceeaa6ac57212036dd2a2b082a21c34f6b9e4e20069df7c744 --- 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 14:09:14,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:09:14,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:09:14,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:09:14,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:09:14,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:09:14,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:09:14,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:09:14,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:09:14,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:09:14,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:09:14,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:09:14,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:09:14,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:09:14,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:09:14,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:09:14,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:09:14,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:09:14,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:09:14,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:09:14,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:09:14,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:09:14,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:09:14,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:09:14,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:09:14,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:09:14,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:09:14,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:09:14,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:09:14,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:09:14,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:09:14,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:09:14,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:09:14,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:09:14,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:09:14,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:09:14,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:09:14,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:09:14,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:09:14,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:09:14,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:09:14,182 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb835a4-626b-494a-b0a5-84b05a766cd4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 14:09:14,197 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:09:14,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:09:14,197 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:09:14,197 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:09:14,198 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:09:14,198 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:09:14,198 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:09:14,198 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:09:14,198 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:09:14,198 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:09:14,198 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:09:14,198 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:09:14,199 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:09:14,199 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:09:14,199 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:09:14,199 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:09:14,199 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:09:14,199 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:09:14,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:09:14,200 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:09:14,200 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:09:14,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:09:14,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:09:14,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:09:14,201 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:09:14,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:09:14,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:09:14,201 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 14:09:14,201 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:09:14,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:09:14,202 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:09:14,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:09:14,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:09:14,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:09:14,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:09:14,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:09:14,202 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:09:14,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:09:14,203 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:09:14,203 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:09:14,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:09:14,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:09:14,203 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:09:14,203 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_ccb835a4-626b-494a-b0a5-84b05a766cd4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb835a4-626b-494a-b0a5-84b05a766cd4/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 929f303f9fec34ceeaa6ac57212036dd2a2b082a21c34f6b9e4e20069df7c744 [2022-12-14 14:09:14,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:09:14,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:09:14,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:09:14,418 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:09:14,418 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:09:14,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb835a4-626b-494a-b0a5-84b05a766cd4/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/pthread-wmm/mix003.oepc.i [2022-12-14 14:09:16,927 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:09:17,115 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:09:17,116 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb835a4-626b-494a-b0a5-84b05a766cd4/sv-benchmarks/c/pthread-wmm/mix003.oepc.i [2022-12-14 14:09:17,125 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb835a4-626b-494a-b0a5-84b05a766cd4/bin/utaipan-gh47qXpMRh/data/dc6a43ca5/d18dcc722c484e52a5d8518e3036bfa0/FLAG1cc62796c [2022-12-14 14:09:17,498 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb835a4-626b-494a-b0a5-84b05a766cd4/bin/utaipan-gh47qXpMRh/data/dc6a43ca5/d18dcc722c484e52a5d8518e3036bfa0 [2022-12-14 14:09:17,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:09:17,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:09:17,504 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:09:17,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:09:17,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:09:17,510 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:09:17" (1/1) ... [2022-12-14 14:09:17,511 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537e0a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:17, skipping insertion in model container [2022-12-14 14:09:17,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:09:17" (1/1) ... [2022-12-14 14:09:17,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:09:17,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:09:17,652 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_ccb835a4-626b-494a-b0a5-84b05a766cd4/sv-benchmarks/c/pthread-wmm/mix003.oepc.i[945,958] [2022-12-14 14:09:17,739 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,741 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,742 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,744 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,752 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,752 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,752 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,768 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,769 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:09:17,778 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:09:17,786 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_ccb835a4-626b-494a-b0a5-84b05a766cd4/sv-benchmarks/c/pthread-wmm/mix003.oepc.i[945,958] [2022-12-14 14:09:17,803 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,804 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,805 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,806 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,807 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,808 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,810 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,810 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,810 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,811 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,816 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,818 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,818 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,818 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,821 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,821 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,821 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-14 14:09:17,823 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-14 14:09:17,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:09:17,844 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:09:17,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:17 WrapperNode [2022-12-14 14:09:17,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:09:17,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:09:17,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:09:17,845 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:09:17,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:17" (1/1) ... [2022-12-14 14:09:17,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:17" (1/1) ... [2022-12-14 14:09:17,876 INFO L138 Inliner]: procedures = 176, calls = 58, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 133 [2022-12-14 14:09:17,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:09:17,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:09:17,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:09:17,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:09:17,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:17" (1/1) ... [2022-12-14 14:09:17,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:17" (1/1) ... [2022-12-14 14:09:17,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:17" (1/1) ... [2022-12-14 14:09:17,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:17" (1/1) ... [2022-12-14 14:09:17,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:17" (1/1) ... [2022-12-14 14:09:17,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:17" (1/1) ... [2022-12-14 14:09:17,896 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:17" (1/1) ... [2022-12-14 14:09:17,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:17" (1/1) ... [2022-12-14 14:09:17,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:09:17,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:09:17,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:09:17,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:09:17,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:17" (1/1) ... [2022-12-14 14:09:17,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:09:17,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb835a4-626b-494a-b0a5-84b05a766cd4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:09:17,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb835a4-626b-494a-b0a5-84b05a766cd4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:09:17,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb835a4-626b-494a-b0a5-84b05a766cd4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:09:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:09:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-14 14:09:17,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:09:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:09:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:09:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-12-14 14:09:17,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-12-14 14:09:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-12-14 14:09:17,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-12-14 14:09:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-12-14 14:09:17,959 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-12-14 14:09:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:09:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-14 14:09:17,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:09:17,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:09:17,961 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 14:09:18,071 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:09:18,072 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:09:18,330 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:09:18,404 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:09:18,404 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:09:18,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:09:18 BoogieIcfgContainer [2022-12-14 14:09:18,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:09:18,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:09:18,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:09:18,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:09:18,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:09:17" (1/3) ... [2022-12-14 14:09:18,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8895b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:09:18, skipping insertion in model container [2022-12-14 14:09:18,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:17" (2/3) ... [2022-12-14 14:09:18,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8895b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:09:18, skipping insertion in model container [2022-12-14 14:09:18,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:09:18" (3/3) ... [2022-12-14 14:09:18,412 INFO L112 eAbstractionObserver]: Analyzing ICFG mix003.oepc.i [2022-12-14 14:09:18,419 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-14 14:09:18,426 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:09:18,427 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 14:09:18,427 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 14:09:18,466 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 14:09:18,488 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 14:09:18,498 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 132 places, 124 transitions, 263 flow [2022-12-14 14:09:18,500 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 132 places, 124 transitions, 263 flow [2022-12-14 14:09:18,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 132 places, 124 transitions, 263 flow [2022-12-14 14:09:18,535 INFO L130 PetriNetUnfolder]: 2/121 cut-off events. [2022-12-14 14:09:18,535 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 14:09:18,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131 conditions, 121 events. 2/121 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 75 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-12-14 14:09:18,541 INFO L119 LiptonReduction]: Number of co-enabled transitions 2808 [2022-12-14 14:09:21,803 INFO L134 LiptonReduction]: Checked pairs total: 10256 [2022-12-14 14:09:21,804 INFO L136 LiptonReduction]: Total number of compositions: 105 [2022-12-14 14:09:21,809 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 33 transitions, 81 flow [2022-12-14 14:09:21,875 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1916 states, 1890 states have (on average 3.588359788359788) internal successors, (6782), 1915 states have internal predecessors, (6782), 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 14:09:21,888 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:09:21,893 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;@aa3942f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:09:21,893 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-12-14 14:09:21,898 INFO L276 IsEmpty]: Start isEmpty. Operand has 1916 states, 1890 states have (on average 3.588359788359788) internal successors, (6782), 1915 states have internal predecessors, (6782), 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 14:09:21,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 14:09:21,902 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:09:21,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 14:09:21,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 14:09:21,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:09:21,906 INFO L85 PathProgramCache]: Analyzing trace with hash 512064519, now seen corresponding path program 1 times [2022-12-14 14:09:21,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:09:21,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577994728] [2022-12-14 14:09:21,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:09:21,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:09:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:09:22,159 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 14:09:22,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:09:22,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577994728] [2022-12-14 14:09:22,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577994728] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:09:22,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:09:22,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:09:22,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845448885] [2022-12-14 14:09:22,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:09:22,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:09:22,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:09:22,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:09:22,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:09:22,188 INFO L87 Difference]: Start difference. First operand has 1916 states, 1890 states have (on average 3.588359788359788) internal successors, (6782), 1915 states have internal predecessors, (6782), 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 2.5) 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 14:09:22,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:09:22,306 INFO L93 Difference]: Finished difference Result 1092 states and 3285 transitions. [2022-12-14 14:09:22,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:09:22,308 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 14:09:22,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:09:22,327 INFO L225 Difference]: With dead ends: 1092 [2022-12-14 14:09:22,327 INFO L226 Difference]: Without dead ends: 1092 [2022-12-14 14:09:22,328 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 14:09:22,330 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 16 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:09:22,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 8 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:09:22,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2022-12-14 14:09:22,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1092. [2022-12-14 14:09:22,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1092 states, 1074 states have (on average 3.058659217877095) internal successors, (3285), 1091 states have internal predecessors, (3285), 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 14:09:22,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 3285 transitions. [2022-12-14 14:09:22,419 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 3285 transitions. Word has length 5 [2022-12-14 14:09:22,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:09:22,420 INFO L495 AbstractCegarLoop]: Abstraction has 1092 states and 3285 transitions. [2022-12-14 14:09:22,420 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 14:09:22,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 3285 transitions. [2022-12-14 14:09:22,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 14:09:22,422 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:09:22,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:09:22,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:09:22,423 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 14:09:22,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:09:22,423 INFO L85 PathProgramCache]: Analyzing trace with hash -2036344821, now seen corresponding path program 1 times [2022-12-14 14:09:22,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:09:22,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628385746] [2022-12-14 14:09:22,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:09:22,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:09:22,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:09:22,558 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 14:09:22,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:09:22,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628385746] [2022-12-14 14:09:22,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628385746] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:09:22,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:09:22,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:09:22,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093928354] [2022-12-14 14:09:22,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:09:22,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:09:22,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:09:22,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:09:22,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:09:22,561 INFO L87 Difference]: Start difference. First operand 1092 states and 3285 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14:09:22,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:09:22,646 INFO L93 Difference]: Finished difference Result 928 states and 2849 transitions. [2022-12-14 14:09:22,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:09:22,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-12-14 14:09:22,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:09:22,652 INFO L225 Difference]: With dead ends: 928 [2022-12-14 14:09:22,652 INFO L226 Difference]: Without dead ends: 928 [2022-12-14 14:09:22,653 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 14:09:22,654 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 31 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:09:22,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 16 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:09:22,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2022-12-14 14:09:22,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 928. [2022-12-14 14:09:22,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 928 states, 922 states have (on average 3.09002169197397) internal successors, (2849), 927 states have internal predecessors, (2849), 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 14:09:22,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 2849 transitions. [2022-12-14 14:09:22,686 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 2849 transitions. Word has length 12 [2022-12-14 14:09:22,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:09:22,686 INFO L495 AbstractCegarLoop]: Abstraction has 928 states and 2849 transitions. [2022-12-14 14:09:22,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14:09:22,687 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 2849 transitions. [2022-12-14 14:09:22,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 14:09:22,689 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:09:22,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:09:22,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:09:22,689 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 14:09:22,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:09:22,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1297819383, now seen corresponding path program 1 times [2022-12-14 14:09:22,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:09:22,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066472110] [2022-12-14 14:09:22,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:09:22,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:09:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:09:22,782 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 14:09:22,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:09:22,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066472110] [2022-12-14 14:09:22,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066472110] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:09:22,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:09:22,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:09:22,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923705994] [2022-12-14 14:09:22,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:09:22,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:09:22,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:09:22,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:09:22,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:09:22,783 INFO L87 Difference]: Start difference. First operand 928 states and 2849 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 14:09:22,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:09:22,879 INFO L93 Difference]: Finished difference Result 800 states and 2500 transitions. [2022-12-14 14:09:22,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:09:22,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-12-14 14:09:22,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:09:22,884 INFO L225 Difference]: With dead ends: 800 [2022-12-14 14:09:22,884 INFO L226 Difference]: Without dead ends: 800 [2022-12-14 14:09:22,885 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 14:09:22,886 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 36 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:09:22,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 12 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:09:22,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2022-12-14 14:09:22,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 800. [2022-12-14 14:09:22,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 797 states have (on average 3.136762860727729) internal successors, (2500), 799 states have internal predecessors, (2500), 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 14:09:22,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 2500 transitions. [2022-12-14 14:09:22,913 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 2500 transitions. Word has length 13 [2022-12-14 14:09:22,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:09:22,913 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 2500 transitions. [2022-12-14 14:09:22,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 14:09:22,913 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 2500 transitions. [2022-12-14 14:09:22,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 14:09:22,917 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:09:22,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:09:22,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:09:22,917 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2022-12-14 14:09:22,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:09:22,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1233758472, now seen corresponding path program 1 times [2022-12-14 14:09:22,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:09:22,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632512366] [2022-12-14 14:09:22,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:09:22,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:09:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:09:23,017 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 14:09:23,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:09:23,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632512366] [2022-12-14 14:09:23,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632512366] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:09:23,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:09:23,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:09:23,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471951355] [2022-12-14 14:09:23,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:09:23,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:09:23,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:09:23,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:09:23,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:09:23,020 INFO L87 Difference]: Start difference. First operand 800 states and 2500 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:09:23,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:09:23,102 INFO L93 Difference]: Finished difference Result 788 states and 2479 transitions. [2022-12-14 14:09:23,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:09:23,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-14 14:09:23,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:09:23,102 INFO L225 Difference]: With dead ends: 788 [2022-12-14 14:09:23,102 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:09:23,103 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 14:09:23,103 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 52 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:09:23,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 12 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:09:23,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:09:23,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:09:23,104 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 14:09:23,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:09:23,104 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2022-12-14 14:09:23,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:09:23,104 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:09:23,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:09:23,104 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:09:23,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:09:23,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2022-12-14 14:09:23,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2022-12-14 14:09:23,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2022-12-14 14:09:23,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2022-12-14 14:09:23,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2022-12-14 14:09:23,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2022-12-14 14:09:23,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2022-12-14 14:09:23,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2022-12-14 14:09:23,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2022-12-14 14:09:23,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2022-12-14 14:09:23,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2022-12-14 14:09:23,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2022-12-14 14:09:23,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2022-12-14 14:09:23,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2022-12-14 14:09:23,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2022-12-14 14:09:23,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:09:23,110 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-14 14:09:23,113 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 14:09:23,113 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:09:23,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:09:23 BasicIcfg [2022-12-14 14:09:23,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:09:23,115 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:09:23,115 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:09:23,115 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:09:23,116 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:09:18" (3/4) ... [2022-12-14 14:09:23,118 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:09:23,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-12-14 14:09:23,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-12-14 14:09:23,121 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-12-14 14:09:23,124 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-14 14:09:23,125 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 14:09:23,125 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 14:09:23,125 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:09:23,147 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb835a4-626b-494a-b0a5-84b05a766cd4/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:09:23,147 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:09:23,148 INFO L158 Benchmark]: Toolchain (without parser) took 5645.04ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 99.3MB in the beginning and 55.3MB in the end (delta: 44.0MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. [2022-12-14 14:09:23,148 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:09:23,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.17ms. Allocated memory is still 134.2MB. Free memory was 98.8MB in the beginning and 72.1MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-14 14:09:23,149 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.50ms. Allocated memory is still 134.2MB. Free memory was 72.1MB in the beginning and 70.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:09:23,149 INFO L158 Benchmark]: Boogie Preprocessor took 22.59ms. Allocated memory is still 134.2MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:09:23,149 INFO L158 Benchmark]: RCFGBuilder took 506.36ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 67.9MB in the beginning and 114.2MB in the end (delta: -46.3MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2022-12-14 14:09:23,150 INFO L158 Benchmark]: TraceAbstraction took 4707.13ms. Allocated memory is still 163.6MB. Free memory was 113.8MB in the beginning and 58.5MB in the end (delta: 55.3MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. [2022-12-14 14:09:23,150 INFO L158 Benchmark]: Witness Printer took 31.98ms. Allocated memory is still 163.6MB. Free memory was 58.5MB in the beginning and 55.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:09:23,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 134.2MB. Free memory is still 106.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.17ms. Allocated memory is still 134.2MB. Free memory was 98.8MB in the beginning and 72.1MB in the end (delta: 26.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.50ms. Allocated memory is still 134.2MB. Free memory was 72.1MB in the beginning and 70.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.59ms. Allocated memory is still 134.2MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 506.36ms. Allocated memory was 134.2MB in the beginning and 163.6MB in the end (delta: 29.4MB). Free memory was 67.9MB in the beginning and 114.2MB in the end (delta: -46.3MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4707.13ms. Allocated memory is still 163.6MB. Free memory was 113.8MB in the beginning and 58.5MB in the end (delta: 55.3MB). Peak memory consumption was 55.3MB. Max. memory is 16.1GB. * Witness Printer took 31.98ms. Allocated memory is still 163.6MB. Free memory was 58.5MB in the beginning and 55.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 132 PlacesBefore, 42 PlacesAfterwards, 124 TransitionsBefore, 33 TransitionsAfterwards, 2808 CoEnabledTransitionPairs, 7 FixpointIterations, 44 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 13 ConcurrentYvCompositions, 1 ChoiceCompositions, 105 TotalNumberOfCompositions, 10256 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4336, independent: 4042, independent conditional: 0, independent unconditional: 4042, dependent: 294, dependent conditional: 0, dependent unconditional: 294, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1957, independent: 1898, independent conditional: 0, independent unconditional: 1898, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1957, independent: 1852, independent conditional: 0, independent unconditional: 1852, dependent: 105, dependent conditional: 0, dependent unconditional: 105, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 105, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 306, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 255, dependent conditional: 0, dependent unconditional: 255, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4336, independent: 2144, independent conditional: 0, independent unconditional: 2144, dependent: 235, dependent conditional: 0, dependent unconditional: 235, unknown: 1957, unknown conditional: 0, unknown unconditional: 1957] , Statistics on independence cache: Total cache size (in pairs): 261, Positive cache size: 235, Positive conditional cache size: 0, Positive unconditional cache size: 235, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, 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: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 794]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 830]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 830]: 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, 158 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 135 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 135 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 234 IncrementalHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 20 mSDtfsCounter, 234 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1916occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 14:09:23,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccb835a4-626b-494a-b0a5-84b05a766cd4/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