./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1c506089032d4cdff4e7555a7f0fed6846d5bd185846ae9cd372b1dcc3fd0c8a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:08:56,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:08:56,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:08:56,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:08:56,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:08:56,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:08:56,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:08:56,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:08:56,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:08:56,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:08:56,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:08:56,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:08:56,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:08:56,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:08:56,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:08:56,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:08:56,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:08:56,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:08:56,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:08:56,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:08:56,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:08:56,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:08:56,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:08:56,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:08:56,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:08:56,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:08:56,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:08:56,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:08:56,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:08:56,613 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:08:56,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:08:56,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:08:56,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:08:56,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:08:56,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:08:56,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:08:56,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:08:56,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:08:56,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:08:56,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:08:56,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:08:56,626 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:08:56,677 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:08:56,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:08:56,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:08:56,680 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:08:56,680 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:08:56,680 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:08:56,680 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:08:56,681 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:08:56,688 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:08:56,688 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:08:56,689 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:08:56,690 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:08:56,690 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:08:56,690 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:08:56,691 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:08:56,691 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:08:56,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:08:56,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:08:56,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:08:56,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:08:56,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:08:56,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:08:56,693 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:08:56,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:08:56,694 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:08:56,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:08:56,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:08:56,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:08:56,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:08:56,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:08:56,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:08:56,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:08:56,698 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:08:56,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:08:56,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:08:56,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:08:56,699 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:08:56,699 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c506089032d4cdff4e7555a7f0fed6846d5bd185846ae9cd372b1dcc3fd0c8a [2021-11-12 23:08:57,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:08:57,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:08:57,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:08:57,090 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:08:57,091 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:08:57,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2021-11-12 23:08:57,171 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/data/93a94362e/a310f25500e247ef91872257b7958d92/FLAG77ad6ff04 [2021-11-12 23:08:58,143 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:08:58,147 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2021-11-12 23:08:58,219 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/data/93a94362e/a310f25500e247ef91872257b7958d92/FLAG77ad6ff04 [2021-11-12 23:08:58,612 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/data/93a94362e/a310f25500e247ef91872257b7958d92 [2021-11-12 23:08:58,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:08:58,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:08:58,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:08:58,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:08:58,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:08:58,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:08:58" (1/1) ... [2021-11-12 23:08:58,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aa20981 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:08:58, skipping insertion in model container [2021-11-12 23:08:58,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:08:58" (1/1) ... [2021-11-12 23:08:58,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:08:58,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:08:59,012 WARN L228 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_0572575d-6030-4185-8a32-193726c36947/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4498,4511] [2021-11-12 23:08:59,019 WARN L228 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_0572575d-6030-4185-8a32-193726c36947/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4558,4571] [2021-11-12 23:08:59,043 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:08:59,049 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:09:00,143 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:09:00,263 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:00,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:00,266 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:00,268 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:00,270 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:00,291 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:00,292 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:00,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:00,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:00,299 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:00,300 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:00,301 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:00,305 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:00,768 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:09:00,769 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:09:00,770 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:09:00,771 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:09:00,772 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:09:00,773 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:09:00,773 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:09:00,774 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:09:00,774 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:09:00,775 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:09:00,933 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:00,940 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:01,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:09:01,117 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:09:01,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2adc2180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:01, skipping insertion in model container [2021-11-12 23:09:01,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:09:01,118 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:09:01,120 INFO L158 Benchmark]: Toolchain (without parser) took 2503.09ms. Allocated memory was 88.1MB in the beginning and 121.6MB in the end (delta: 33.6MB). Free memory was 63.1MB in the beginning and 87.2MB in the end (delta: -24.1MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2021-11-12 23:09:01,121 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 88.1MB. Free memory was 68.0MB in the beginning and 68.0MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:09:01,123 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2500.28ms. Allocated memory was 88.1MB in the beginning and 121.6MB in the end (delta: 33.6MB). Free memory was 62.8MB in the beginning and 87.2MB in the end (delta: -24.4MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. [2021-11-12 23:09:01,125 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 88.1MB. Free memory was 68.0MB in the beginning and 68.0MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2500.28ms. Allocated memory was 88.1MB in the beginning and 121.6MB in the end (delta: 33.6MB). Free memory was 62.8MB in the beginning and 87.2MB in the end (delta: -24.4MB). Peak memory consumption was 42.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2886]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1c506089032d4cdff4e7555a7f0fed6846d5bd185846ae9cd372b1dcc3fd0c8a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:09:03,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:09:03,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:09:03,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:09:03,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:09:03,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:09:03,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:09:03,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:09:03,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:09:03,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:09:03,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:09:03,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:09:03,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:09:03,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:09:03,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:09:03,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:09:03,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:09:03,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:09:03,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:09:03,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:09:03,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:09:03,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:09:03,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:09:03,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:09:03,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:09:03,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:09:03,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:09:03,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:09:03,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:09:03,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:09:03,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:09:03,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:09:03,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:09:03,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:09:03,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:09:03,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:09:03,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:09:03,561 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:09:03,561 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:09:03,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:09:03,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:09:03,569 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:09:03,617 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:09:03,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:09:03,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:09:03,618 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:09:03,619 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:09:03,619 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:09:03,619 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:09:03,619 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:09:03,619 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:09:03,620 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:09:03,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:09:03,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:09:03,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:09:03,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:09:03,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:09:03,623 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:09:03,623 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:09:03,624 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:09:03,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:09:03,624 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:09:03,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:09:03,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:09:03,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:09:03,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:09:03,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:09:03,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:09:03,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:09:03,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:09:03,626 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:09:03,626 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:09:03,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:09:03,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:09:03,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:09:03,627 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c506089032d4cdff4e7555a7f0fed6846d5bd185846ae9cd372b1dcc3fd0c8a [2021-11-12 23:09:04,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:09:04,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:09:04,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:09:04,054 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:09:04,055 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:09:04,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2021-11-12 23:09:04,147 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/data/a910cf055/b76aed0d15e94a66846bce7961be05e5/FLAG980a0124b [2021-11-12 23:09:05,089 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:09:05,090 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i [2021-11-12 23:09:05,144 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/data/a910cf055/b76aed0d15e94a66846bce7961be05e5/FLAG980a0124b [2021-11-12 23:09:05,167 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/data/a910cf055/b76aed0d15e94a66846bce7961be05e5 [2021-11-12 23:09:05,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:09:05,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:09:05,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:09:05,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:09:05,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:09:05,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:09:05" (1/1) ... [2021-11-12 23:09:05,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@690d6587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:05, skipping insertion in model container [2021-11-12 23:09:05,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:09:05" (1/1) ... [2021-11-12 23:09:05,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:09:05,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:09:05,604 WARN L228 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_0572575d-6030-4185-8a32-193726c36947/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4498,4511] [2021-11-12 23:09:05,610 WARN L228 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_0572575d-6030-4185-8a32-193726c36947/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4558,4571] [2021-11-12 23:09:05,628 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:09:05,633 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:09:06,423 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:09:06,516 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:06,517 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:06,517 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:06,518 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:06,519 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:06,534 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:06,535 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:06,537 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:06,538 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:06,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:06,541 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:06,542 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:06,542 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:06,977 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:09:06,979 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:09:06,980 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:09:06,981 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:09:06,982 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:09:06,983 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:09:06,984 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:09:06,984 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:09:06,985 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:09:06,986 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:09:07,186 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,203 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:09:07,346 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:09:07,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:09:07,411 WARN L228 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_0572575d-6030-4185-8a32-193726c36947/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4498,4511] [2021-11-12 23:09:07,414 WARN L228 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_0572575d-6030-4185-8a32-193726c36947/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4558,4571] [2021-11-12 23:09:07,422 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:09:07,423 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:09:07,474 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:09:07,497 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,498 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,498 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,498 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,499 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,506 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,507 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,508 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,508 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,509 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,510 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,510 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,511 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,548 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:09:07,549 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:09:07,550 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:09:07,551 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:09:07,551 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:09:07,552 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:09:07,552 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:09:07,553 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:09:07,553 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:09:07,554 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:09:07,618 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,624 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:09:07,680 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:09:07,695 WARN L228 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_0572575d-6030-4185-8a32-193726c36947/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4498,4511] [2021-11-12 23:09:07,695 WARN L228 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_0572575d-6030-4185-8a32-193726c36947/sv-benchmarks/c/aws-c-common/aws_array_list_push_back_harness.i[4558,4571] [2021-11-12 23:09:07,697 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:09:07,698 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:09:07,727 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:09:07,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,741 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,741 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,747 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,748 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,748 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,751 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,751 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,814 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:09:07,815 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:09:07,816 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:09:07,817 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:09:07,818 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:09:07,818 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:09:07,819 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:09:07,820 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:09:07,820 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:09:07,821 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:09:07,871 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,881 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:09:07,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:09:08,280 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:09:08,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:08 WrapperNode [2021-11-12 23:09:08,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:09:08,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:09:08,282 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:09:08,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:09:08,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:08" (1/1) ... [2021-11-12 23:09:08,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:08" (1/1) ... [2021-11-12 23:09:08,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:09:08,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:09:08,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:09:08,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:09:08,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:08" (1/1) ... [2021-11-12 23:09:08,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:08" (1/1) ... [2021-11-12 23:09:08,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:08" (1/1) ... [2021-11-12 23:09:08,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:08" (1/1) ... [2021-11-12 23:09:08,637 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:08" (1/1) ... [2021-11-12 23:09:08,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:08" (1/1) ... [2021-11-12 23:09:08,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:08" (1/1) ... [2021-11-12 23:09:08,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:09:08,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:09:08,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:09:08,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:09:08,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:08" (1/1) ... [2021-11-12 23:09:08,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:09:08,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:09:08,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:09:08,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:09:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:09:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-12 23:09:08,807 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-12 23:09:08,807 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-12 23:09:08,808 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-12 23:09:08,808 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 23:09:08,808 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 23:09:08,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:09:08,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:09:08,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:09:08,809 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-11-12 23:09:08,809 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-11-12 23:09:08,810 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-12 23:09:08,810 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-12 23:09:08,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 23:09:08,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 23:09:08,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:09:08,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:09:08,811 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2021-11-12 23:09:08,811 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2021-11-12 23:09:08,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:09:08,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:09:08,812 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 23:09:08,812 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 23:09:08,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:09:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-12 23:09:08,814 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-12 23:09:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:09:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-12 23:09:08,817 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-12 23:09:08,817 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-12 23:09:08,817 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-12 23:09:08,818 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-12 23:09:08,818 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2021-11-12 23:09:08,818 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2021-11-12 23:09:08,819 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-12 23:09:08,826 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-12 23:09:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 23:09:08,826 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 23:09:08,826 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2021-11-12 23:09:08,827 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2021-11-12 23:09:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-11-12 23:09:08,827 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-11-12 23:09:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:09:08,827 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-12 23:09:08,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-12 23:09:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-12 23:09:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:09:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:09:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:09:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:09:08,828 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-12 23:09:08,828 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-12 23:09:08,829 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-12 23:09:08,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-12 23:09:08,829 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-12 23:09:08,829 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-12 23:09:08,829 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-12 23:09:08,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-12 23:09:22,338 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:09:22,338 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 23:09:22,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:09:22 BoogieIcfgContainer [2021-11-12 23:09:22,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:09:22,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:09:22,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:09:22,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:09:22,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:09:05" (1/3) ... [2021-11-12 23:09:22,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e654c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:09:22, skipping insertion in model container [2021-11-12 23:09:22,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:09:08" (2/3) ... [2021-11-12 23:09:22,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e654c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:09:22, skipping insertion in model container [2021-11-12 23:09:22,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:09:22" (3/3) ... [2021-11-12 23:09:22,350 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_push_back_harness.i [2021-11-12 23:09:22,355 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:09:22,355 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:09:22,408 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:09:22,414 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:09:22,414 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:09:22,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 295 states, 171 states have (on average 1.2280701754385965) internal successors, (210), 172 states have internal predecessors, (210), 101 states have call successors, (101), 21 states have call predecessors, (101), 21 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2021-11-12 23:09:22,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-12 23:09:22,454 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:22,455 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:22,455 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:22,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:22,461 INFO L85 PathProgramCache]: Analyzing trace with hash -769699633, now seen corresponding path program 1 times [2021-11-12 23:09:22,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:09:22,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220267122] [2021-11-12 23:09:22,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:22,482 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:09:22,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:09:22,485 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:09:22,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:09:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:26,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:09:26,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:27,065 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2021-11-12 23:09:27,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:27,510 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2021-11-12 23:09:27,511 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:09:27,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220267122] [2021-11-12 23:09:27,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1220267122] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:27,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:09:27,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-12 23:09:27,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919395738] [2021-11-12 23:09:27,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:27,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:09:27,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:09:27,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:09:27,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:09:27,584 INFO L87 Difference]: Start difference. First operand has 295 states, 171 states have (on average 1.2280701754385965) internal successors, (210), 172 states have internal predecessors, (210), 101 states have call successors, (101), 21 states have call predecessors, (101), 21 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-12 23:09:27,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:27,683 INFO L93 Difference]: Finished difference Result 583 states and 876 transitions. [2021-11-12 23:09:27,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:09:27,688 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 130 [2021-11-12 23:09:27,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:27,711 INFO L225 Difference]: With dead ends: 583 [2021-11-12 23:09:27,711 INFO L226 Difference]: Without dead ends: 290 [2021-11-12 23:09:27,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:09:27,723 INFO L933 BasicCegarLoop]: 410 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.63ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:27,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 4.63ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:09:27,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-11-12 23:09:27,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2021-11-12 23:09:27,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 167 states have (on average 1.221556886227545) internal successors, (204), 168 states have internal predecessors, (204), 101 states have call successors, (101), 21 states have call predecessors, (101), 21 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2021-11-12 23:09:27,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 405 transitions. [2021-11-12 23:09:27,808 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 405 transitions. Word has length 130 [2021-11-12 23:09:27,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:27,808 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 405 transitions. [2021-11-12 23:09:27,809 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-12 23:09:27,809 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 405 transitions. [2021-11-12 23:09:27,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-12 23:09:27,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:27,814 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:27,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:28,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:09:28,015 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:28,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:28,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1434401349, now seen corresponding path program 1 times [2021-11-12 23:09:28,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:09:28,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883438463] [2021-11-12 23:09:28,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:28,025 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:09:28,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:09:28,026 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:09:28,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:09:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:32,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:09:32,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:32,808 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2021-11-12 23:09:32,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:33,349 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2021-11-12 23:09:33,349 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:09:33,350 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883438463] [2021-11-12 23:09:33,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883438463] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:33,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:09:33,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-11-12 23:09:33,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449052867] [2021-11-12 23:09:33,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:33,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:09:33,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:09:33,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:09:33,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:09:33,353 INFO L87 Difference]: Start difference. First operand 290 states and 405 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-12 23:09:34,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:34,206 INFO L93 Difference]: Finished difference Result 556 states and 797 transitions. [2021-11-12 23:09:34,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:09:34,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 130 [2021-11-12 23:09:34,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:34,216 INFO L225 Difference]: With dead ends: 556 [2021-11-12 23:09:34,216 INFO L226 Difference]: Without dead ends: 292 [2021-11-12 23:09:34,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:09:34,220 INFO L933 BasicCegarLoop]: 369 mSDtfsCounter, 111 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 597.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.79ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 751.03ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:34,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 1281 Invalid, 157 Unknown, 0 Unchecked, 16.79ms Time], IncrementalHoareTripleChecker [2 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 751.03ms Time] [2021-11-12 23:09:34,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-11-12 23:09:34,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2021-11-12 23:09:34,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 168 states have (on average 1.2202380952380953) internal successors, (205), 170 states have internal predecessors, (205), 101 states have call successors, (101), 21 states have call predecessors, (101), 22 states have return successors, (119), 100 states have call predecessors, (119), 100 states have call successors, (119) [2021-11-12 23:09:34,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 425 transitions. [2021-11-12 23:09:34,271 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 425 transitions. Word has length 130 [2021-11-12 23:09:34,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:34,271 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 425 transitions. [2021-11-12 23:09:34,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-12 23:09:34,272 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 425 transitions. [2021-11-12 23:09:34,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-12 23:09:34,280 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:34,280 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:34,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:34,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:09:34,483 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:34,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:34,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1767752939, now seen corresponding path program 1 times [2021-11-12 23:09:34,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:09:34,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17437308] [2021-11-12 23:09:34,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:34,490 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:09:34,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:09:34,496 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:09:34,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:09:38,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:38,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 1930 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:09:38,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:39,454 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2021-11-12 23:09:39,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:39,921 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2021-11-12 23:09:39,921 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:09:39,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17437308] [2021-11-12 23:09:39,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17437308] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:39,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:09:39,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2021-11-12 23:09:39,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060687138] [2021-11-12 23:09:39,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:39,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:09:39,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:09:39,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:09:39,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:09:39,924 INFO L87 Difference]: Start difference. First operand 292 states and 425 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-12 23:09:40,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:40,083 INFO L93 Difference]: Finished difference Result 563 states and 845 transitions. [2021-11-12 23:09:40,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:09:40,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 160 [2021-11-12 23:09:40,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:40,094 INFO L225 Difference]: With dead ends: 563 [2021-11-12 23:09:40,094 INFO L226 Difference]: Without dead ends: 297 [2021-11-12 23:09:40,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:09:40,100 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 10 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1202 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.30ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98.66ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:40,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 1202 Invalid, 13 Unknown, 0 Unchecked, 10.30ms Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 98.66ms Time] [2021-11-12 23:09:40,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-11-12 23:09:40,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 294. [2021-11-12 23:09:40,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 170 states have (on average 1.2176470588235293) internal successors, (207), 172 states have internal predecessors, (207), 101 states have call successors, (101), 21 states have call predecessors, (101), 22 states have return successors, (119), 100 states have call predecessors, (119), 100 states have call successors, (119) [2021-11-12 23:09:40,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 427 transitions. [2021-11-12 23:09:40,169 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 427 transitions. Word has length 160 [2021-11-12 23:09:40,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:40,170 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 427 transitions. [2021-11-12 23:09:40,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-12 23:09:40,171 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 427 transitions. [2021-11-12 23:09:40,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-12 23:09:40,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:40,174 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:40,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:40,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:09:40,399 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:40,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:40,400 INFO L85 PathProgramCache]: Analyzing trace with hash 686217173, now seen corresponding path program 1 times [2021-11-12 23:09:40,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:09:40,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846021143] [2021-11-12 23:09:40,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:40,407 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:09:40,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:09:40,408 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:09:40,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:09:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:44,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 1936 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 23:09:44,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:46,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-11-12 23:09:46,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2021-11-12 23:09:46,806 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 157 proven. 4 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-12 23:09:46,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:50,424 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:09:50,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2021-11-12 23:09:50,487 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-12 23:09:50,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 34 [2021-11-12 23:09:50,692 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 9 proven. 39 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2021-11-12 23:09:50,692 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:09:50,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846021143] [2021-11-12 23:09:50,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [846021143] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:09:50,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [830168493] [2021-11-12 23:09:50,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:50,693 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:09:50,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:09:50,708 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:09:50,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-12 23:09:52,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:52,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 1936 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:09:52,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:09:53,196 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2021-11-12 23:09:53,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:09:53,635 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 18 proven. 12 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-12 23:09:53,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [830168493] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:09:53,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:09:53,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12, 10, 5] total 17 [2021-11-12 23:09:53,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666955874] [2021-11-12 23:09:53,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:09:53,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:09:53,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:09:53,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:09:53,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:09:53,638 INFO L87 Difference]: Start difference. First operand 294 states and 427 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-12 23:09:54,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:09:54,282 INFO L93 Difference]: Finished difference Result 545 states and 792 transitions. [2021-11-12 23:09:54,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:09:54,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 160 [2021-11-12 23:09:54,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:09:54,288 INFO L225 Difference]: With dead ends: 545 [2021-11-12 23:09:54,288 INFO L226 Difference]: Without dead ends: 294 [2021-11-12 23:09:54,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 637 GetRequests, 620 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:09:54,291 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 2 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 483.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.01ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 536.66ms IncrementalHoareTripleChecker+Time [2021-11-12 23:09:54,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1457 Invalid, 157 Unknown, 0 Unchecked, 9.01ms Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 536.66ms Time] [2021-11-12 23:09:54,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-11-12 23:09:54,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2021-11-12 23:09:54,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 170 states have (on average 1.2117647058823529) internal successors, (206), 172 states have internal predecessors, (206), 101 states have call successors, (101), 21 states have call predecessors, (101), 22 states have return successors, (119), 100 states have call predecessors, (119), 100 states have call successors, (119) [2021-11-12 23:09:54,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 426 transitions. [2021-11-12 23:09:54,320 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 426 transitions. Word has length 160 [2021-11-12 23:09:54,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:09:54,321 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 426 transitions. [2021-11-12 23:09:54,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-12 23:09:54,322 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 426 transitions. [2021-11-12 23:09:54,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-12 23:09:54,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:09:54,325 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:09:54,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:54,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:09:54,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:09:54,743 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:09:54,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:09:54,744 INFO L85 PathProgramCache]: Analyzing trace with hash -189801833, now seen corresponding path program 1 times [2021-11-12 23:09:54,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:09:54,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171272429] [2021-11-12 23:09:54,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:09:54,749 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:09:54,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:09:54,750 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:09:54,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:09:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:09:59,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 1938 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 23:09:59,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:10:00,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-11-12 23:10:00,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2021-11-12 23:10:00,650 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 157 proven. 4 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2021-11-12 23:10:00,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:10:04,139 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:10:04,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2021-11-12 23:10:04,188 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-12 23:10:04,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 34 [2021-11-12 23:10:04,343 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 9 proven. 39 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2021-11-12 23:10:04,343 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:10:04,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171272429] [2021-11-12 23:10:04,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171272429] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 23:10:04,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1215595007] [2021-11-12 23:10:04,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:10:04,344 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 23:10:04,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 23:10:04,355 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 23:10:04,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-12 23:10:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:10:05,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 1938 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:10:05,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:10:06,712 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2021-11-12 23:10:06,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:10:07,359 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2021-11-12 23:10:07,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1215595007] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:10:07,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-12 23:10:07,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12, 10, 6] total 21 [2021-11-12 23:10:07,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091352512] [2021-11-12 23:10:07,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:10:07,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:10:07,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:10:07,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:10:07,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2021-11-12 23:10:07,363 INFO L87 Difference]: Start difference. First operand 294 states and 426 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-12 23:10:08,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:10:08,639 INFO L93 Difference]: Finished difference Result 542 states and 785 transitions. [2021-11-12 23:10:08,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:10:08,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 160 [2021-11-12 23:10:08,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:10:08,644 INFO L225 Difference]: With dead ends: 542 [2021-11-12 23:10:08,644 INFO L226 Difference]: Without dead ends: 294 [2021-11-12 23:10:08,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 639 GetRequests, 617 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2021-11-12 23:10:08,648 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 186 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 911.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1516 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.56ms SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1076.20ms IncrementalHoareTripleChecker+Time [2021-11-12 23:10:08,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 1516 Invalid, 323 Unknown, 0 Unchecked, 9.56ms Time], IncrementalHoareTripleChecker [144 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 1076.20ms Time] [2021-11-12 23:10:08,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-11-12 23:10:08,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2021-11-12 23:10:08,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 170 states have (on average 1.2117647058823529) internal successors, (206), 172 states have internal predecessors, (206), 101 states have call successors, (101), 21 states have call predecessors, (101), 22 states have return successors, (116), 100 states have call predecessors, (116), 100 states have call successors, (116) [2021-11-12 23:10:08,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 423 transitions. [2021-11-12 23:10:08,673 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 423 transitions. Word has length 160 [2021-11-12 23:10:08,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:10:08,674 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 423 transitions. [2021-11-12 23:10:08,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2021-11-12 23:10:08,675 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 423 transitions. [2021-11-12 23:10:08,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-12 23:10:08,678 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:10:08,678 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:10:08,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:10:08,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2021-11-12 23:10:09,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 23:10:09,103 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:10:09,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:10:09,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1309413730, now seen corresponding path program 2 times [2021-11-12 23:10:09,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:10:09,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017482276] [2021-11-12 23:10:09,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 23:10:09,108 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:10:09,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:10:09,109 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:10:09,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0572575d-6030-4185-8a32-193726c36947/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process