./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_mul_size_checked_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_mul_size_checked_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8 --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 85d674f1fa2637b1938916a29638137d4fa709dbd0bf61de12fff951c3252955 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:11:28,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:11:28,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:11:29,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:11:29,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:11:29,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:11:29,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:11:29,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:11:29,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:11:29,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:11:29,045 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:11:29,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:11:29,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:11:29,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:11:29,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:11:29,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:11:29,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:11:29,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:11:29,059 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:11:29,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:11:29,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:11:29,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:11:29,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:11:29,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:11:29,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:11:29,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:11:29,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:11:29,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:11:29,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:11:29,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:11:29,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:11:29,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:11:29,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:11:29,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:11:29,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:11:29,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:11:29,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:11:29,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:11:29,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:11:29,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:11:29,091 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:11:29,092 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 02:11:29,130 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:11:29,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:11:29,133 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:11:29,133 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:11:29,134 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:11:29,134 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:11:29,134 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:11:29,135 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:11:29,135 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:11:29,135 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:11:29,136 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:11:29,137 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:11:29,137 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:11:29,138 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:11:29,138 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:11:29,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:11:29,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:11:29,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:11:29,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:11:29,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:11:29,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:11:29,141 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:11:29,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:11:29,141 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:11:29,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:11:29,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:11:29,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:11:29,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:11:29,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:11:29,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:11:29,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:11:29,145 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:11:29,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:11:29,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:11:29,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:11:29,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:11:29,147 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_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85d674f1fa2637b1938916a29638137d4fa709dbd0bf61de12fff951c3252955 [2021-11-07 02:11:29,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:11:29,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:11:29,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:11:29,513 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:11:29,514 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:11:29,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/aws-c-common/aws_mul_size_checked_harness.i [2021-11-07 02:11:29,620 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/data/2284b9515/8297385574504218b6757bce21a2d3d8/FLAG49ae6e03a [2021-11-07 02:11:30,562 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:11:30,566 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/sv-benchmarks/c/aws-c-common/aws_mul_size_checked_harness.i [2021-11-07 02:11:30,614 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/data/2284b9515/8297385574504218b6757bce21a2d3d8/FLAG49ae6e03a [2021-11-07 02:11:31,047 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/data/2284b9515/8297385574504218b6757bce21a2d3d8 [2021-11-07 02:11:31,051 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:11:31,053 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:11:31,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:11:31,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:11:31,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:11:31,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:11:31" (1/1) ... [2021-11-07 02:11:31,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb8a7e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:31, skipping insertion in model container [2021-11-07 02:11:31,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:11:31" (1/1) ... [2021-11-07 02:11:31,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:11:31,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:11:31,587 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_21db63f9-f1c6-4dd9-be74-6a701dc9f807/sv-benchmarks/c/aws-c-common/aws_mul_size_checked_harness.i[4494,4507] [2021-11-07 02:11:31,595 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_21db63f9-f1c6-4dd9-be74-6a701dc9f807/sv-benchmarks/c/aws-c-common/aws_mul_size_checked_harness.i[4554,4567] [2021-11-07 02:11:31,621 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:11:31,627 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:11:32,605 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:32,606 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:32,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:32,608 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:32,610 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:32,629 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:32,631 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:32,634 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:32,635 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:32,638 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:32,640 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:32,641 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:32,642 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:33,127 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:11:33,129 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:11:33,130 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:11:33,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:11:33,136 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:11:33,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:11:33,141 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:11:33,144 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:11:33,145 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:11:33,148 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:11:33,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:11:33,441 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:11:33,458 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_21db63f9-f1c6-4dd9-be74-6a701dc9f807/sv-benchmarks/c/aws-c-common/aws_mul_size_checked_harness.i[4494,4507] [2021-11-07 02:11:33,459 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_21db63f9-f1c6-4dd9-be74-6a701dc9f807/sv-benchmarks/c/aws-c-common/aws_mul_size_checked_harness.i[4554,4567] [2021-11-07 02:11:33,462 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-07 02:11:33,463 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-07 02:11:33,562 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:33,562 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:33,563 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:33,564 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:33,569 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:33,589 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:33,592 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:33,595 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:33,598 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:33,600 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:33,603 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:33,607 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:33,608 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-07 02:11:33,669 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-07 02:11:33,670 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-07 02:11:33,672 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-07 02:11:33,673 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-07 02:11:33,674 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-07 02:11:33,675 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-07 02:11:33,676 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-07 02:11:33,677 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-07 02:11:33,678 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-07 02:11:33,678 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-07 02:11:33,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:11:34,043 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:11:34,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:34 WrapperNode [2021-11-07 02:11:34,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:11:34,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:11:34,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:11:34,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:11:34,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:34" (1/1) ... [2021-11-07 02:11:34,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:34" (1/1) ... [2021-11-07 02:11:34,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:11:34,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:11:34,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:11:34,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:11:34,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:34" (1/1) ... [2021-11-07 02:11:34,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:34" (1/1) ... [2021-11-07 02:11:34,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:34" (1/1) ... [2021-11-07 02:11:34,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:34" (1/1) ... [2021-11-07 02:11:34,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:34" (1/1) ... [2021-11-07 02:11:34,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:34" (1/1) ... [2021-11-07 02:11:34,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:34" (1/1) ... [2021-11-07 02:11:34,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:11:34,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:11:34,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:11:34,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:11:34,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:34" (1/1) ... [2021-11-07 02:11:34,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:11:34,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:11:34,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:11:34,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:11:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 02:11:34,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 02:11:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:11:34,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:11:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:11:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-07 02:11:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 02:11:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 02:11:34,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 02:11:55,059 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:11:55,059 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-11-07 02:11:55,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:11:55 BoogieIcfgContainer [2021-11-07 02:11:55,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:11:55,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:11:55,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:11:55,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:11:55,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:11:31" (1/3) ... [2021-11-07 02:11:55,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd28254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:11:55, skipping insertion in model container [2021-11-07 02:11:55,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:11:34" (2/3) ... [2021-11-07 02:11:55,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd28254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:11:55, skipping insertion in model container [2021-11-07 02:11:55,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:11:55" (3/3) ... [2021-11-07 02:11:55,073 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_mul_size_checked_harness.i [2021-11-07 02:11:55,080 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:11:55,081 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-07 02:11:55,162 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:11:55,178 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 [2021-11-07 02:11:55,178 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-07 02:11:55,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:11:55,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 02:11:55,200 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:11:55,200 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 02:11:55,201 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:11:55,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:11:55,207 INFO L85 PathProgramCache]: Analyzing trace with hash 151940154, now seen corresponding path program 1 times [2021-11-07 02:11:55,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:11:55,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31720133] [2021-11-07 02:11:55,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:11:55,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:11:55,761 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 02:11:55,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1629356267] [2021-11-07 02:11:55,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:11:55,762 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:11:55,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:11:55,765 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:11:55,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 02:19:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:19:09,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 2123 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-07 02:19:09,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:19:09,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:19:09,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:19:09,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-07 02:19:09,875 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:19:09,876 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:19:09,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 02:19:09,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 02:19:10,064 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 46 treesize of output 34 [2021-11-07 02:19:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:19:10,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:19:10,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:19:10,308 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 02:19:10,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31720133] [2021-11-07 02:19:10,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 02:19:10,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629356267] [2021-11-07 02:19:10,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629356267] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:19:10,316 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:19:10,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 02:19:10,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680335336] [2021-11-07 02:19:10,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:19:10,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 02:19:10,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:19:10,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:19:10,348 INFO L87 Difference]: Start difference. First operand has 22 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:19:12,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:19:12,720 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2021-11-07 02:19:12,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:19:12,723 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-07 02:19:12,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:19:12,733 INFO L225 Difference]: With dead ends: 31 [2021-11-07 02:19:12,733 INFO L226 Difference]: Without dead ends: 13 [2021-11-07 02:19:12,737 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:19:12,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-07 02:19:12,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-07 02:19:12,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:19:12,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-11-07 02:19:12,774 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 5 [2021-11-07 02:19:12,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:19:12,775 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-11-07 02:19:12,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:19:12,776 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-11-07 02:19:12,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-07 02:19:12,776 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:19:12,776 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-07 02:19:12,990 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forcibly destroying the process [2021-11-07 02:19:13,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 137 [2021-11-07 02:19:13,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-07 02:19:13,050 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-07 02:19:13,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:19:13,050 INFO L85 PathProgramCache]: Analyzing trace with hash 151951077, now seen corresponding path program 1 times [2021-11-07 02:19:13,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:19:13,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396333241] [2021-11-07 02:19:13,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:19:13,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:19:13,252 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 02:19:13,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1476974726] [2021-11-07 02:19:13,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:19:13,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:19:13,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:19:13,259 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:19:13,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21db63f9-f1c6-4dd9-be74-6a701dc9f807/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process