./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs --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 d8feb785efb60d35f9204dc33a12e80ea59efcec5de2b7c2ff320ef29197b0bd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:35:04,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:35:04,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:35:04,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:35:04,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:35:04,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:35:04,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:35:04,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:35:04,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:35:04,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:35:04,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:35:04,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:35:04,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:35:04,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:35:04,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:35:04,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:35:04,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:35:04,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:35:04,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:35:04,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:35:04,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:35:04,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:35:04,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:35:04,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:35:04,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:35:04,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:35:04,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:35:04,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:35:04,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:35:04,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:35:04,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:35:04,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:35:04,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:35:04,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:35:04,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:35:04,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:35:04,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:35:04,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:35:04,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:35:04,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:35:04,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:35:04,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:35:04,972 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:35:04,973 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:35:04,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:35:04,974 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:35:04,974 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:35:04,974 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:35:04,975 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:35:04,975 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:35:04,975 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:35:04,975 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:35:04,975 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:35:04,976 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:35:04,976 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:35:04,976 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:35:04,976 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:35:04,977 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:35:04,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:35:04,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:35:04,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:35:04,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:35:04,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:35:04,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:35:04,979 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:35:04,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:35:04,979 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:35:04,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:35:04,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:35:04,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:35:04,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:35:04,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:35:04,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:35:04,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:35:04,981 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:35:04,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:35:04,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:35:04,981 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:35:04,982 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:35:04,982 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_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8feb785efb60d35f9204dc33a12e80ea59efcec5de2b7c2ff320ef29197b0bd [2021-11-19 13:35:05,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:35:05,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:35:05,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:35:05,313 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:35:05,314 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:35:05,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i [2021-11-19 13:35:05,410 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/data/0167d4455/13e9e98b8d0642f99a8ba87846fb1045/FLAG1c325426c [2021-11-19 13:35:06,420 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:35:06,420 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i [2021-11-19 13:35:06,472 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/data/0167d4455/13e9e98b8d0642f99a8ba87846fb1045/FLAG1c325426c [2021-11-19 13:35:06,827 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/data/0167d4455/13e9e98b8d0642f99a8ba87846fb1045 [2021-11-19 13:35:06,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:35:06,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:35:06,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:35:06,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:35:06,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:35:06,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:35:06" (1/1) ... [2021-11-19 13:35:06,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b0b6aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:06, skipping insertion in model container [2021-11-19 13:35:06,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:35:06" (1/1) ... [2021-11-19 13:35:06,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:35:06,990 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:35:07,330 WARN L230 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_22f63d4a-1a26-47a0-a464-763ccd80ca2f/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4499,4512] [2021-11-19 13:35:07,338 WARN L230 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_22f63d4a-1a26-47a0-a464-763ccd80ca2f/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4559,4572] [2021-11-19 13:35:07,361 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 13:35:07,367 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 13:35:08,362 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:08,363 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:08,364 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:08,365 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:08,366 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:08,384 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:08,385 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:08,388 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:08,389 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:08,954 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 13:35:08,956 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 13:35:08,957 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 13:35:08,958 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 13:35:08,960 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 13:35:08,961 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 13:35:08,962 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 13:35:08,962 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 13:35:08,963 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 13:35:08,964 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 13:35:09,231 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 13:35:09,422 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:09,426 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:09,571 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:35:09,658 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) [2021-11-19 13:35:09,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3358eabc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:09, skipping insertion in model container [2021-11-19 13:35:09,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:35:09,662 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:35:09,665 INFO L158 Benchmark]: Toolchain (without parser) took 2831.25ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 46.2MB in the beginning and 59.0MB in the end (delta: -12.8MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2021-11-19 13:35:09,665 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 88.1MB. Free memory is still 43.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:35:09,667 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2806.91ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 64.5MB in the beginning and 59.0MB in the end (delta: 5.5MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2021-11-19 13:35:09,669 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 88.1MB. Free memory is still 43.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2806.91ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 64.5MB in the beginning and 59.0MB in the end (delta: 5.5MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: 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_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs --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 d8feb785efb60d35f9204dc33a12e80ea59efcec5de2b7c2ff320ef29197b0bd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:35:12,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:35:12,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:35:12,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:35:12,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:35:12,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:35:12,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:35:12,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:35:12,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:35:12,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:35:12,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:35:12,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:35:12,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:35:12,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:35:12,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:35:12,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:35:12,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:35:12,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:35:12,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:35:12,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:35:12,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:35:12,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:35:12,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:35:12,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:35:12,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:35:12,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:35:12,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:35:12,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:35:12,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:35:12,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:35:12,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:35:12,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:35:12,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:35:12,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:35:12,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:35:12,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:35:12,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:35:12,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:35:12,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:35:12,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:35:12,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:35:12,334 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:35:12,385 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:35:12,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:35:12,388 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:35:12,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:35:12,388 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:35:12,389 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:35:12,389 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:35:12,389 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:35:12,389 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:35:12,390 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:35:12,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:35:12,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:35:12,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:35:12,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:35:12,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:35:12,394 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:35:12,394 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:35:12,394 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:35:12,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:35:12,395 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:35:12,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:35:12,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:35:12,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:35:12,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:35:12,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:35:12,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:35:12,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:35:12,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:35:12,397 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:35:12,397 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:35:12,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:35:12,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:35:12,398 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:35:12,398 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_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8feb785efb60d35f9204dc33a12e80ea59efcec5de2b7c2ff320ef29197b0bd [2021-11-19 13:35:12,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:35:12,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:35:12,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:35:12,909 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:35:12,910 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:35:12,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i [2021-11-19 13:35:13,011 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/data/aaac24458/4ddaa399745f4aa6837243e617e6d06d/FLAG671e5423a [2021-11-19 13:35:14,043 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:35:14,045 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i [2021-11-19 13:35:14,100 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/data/aaac24458/4ddaa399745f4aa6837243e617e6d06d/FLAG671e5423a [2021-11-19 13:35:14,425 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/data/aaac24458/4ddaa399745f4aa6837243e617e6d06d [2021-11-19 13:35:14,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:35:14,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:35:14,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:35:14,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:35:14,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:35:14,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:35:14" (1/1) ... [2021-11-19 13:35:14,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54be2f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:14, skipping insertion in model container [2021-11-19 13:35:14,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:35:14" (1/1) ... [2021-11-19 13:35:14,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:35:14,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:35:15,004 WARN L230 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_22f63d4a-1a26-47a0-a464-763ccd80ca2f/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4499,4512] [2021-11-19 13:35:15,015 WARN L230 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_22f63d4a-1a26-47a0-a464-763ccd80ca2f/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4559,4572] [2021-11-19 13:35:15,050 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 13:35:15,055 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 13:35:16,176 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:16,181 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:16,183 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:16,186 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:16,188 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:16,214 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:16,215 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:16,218 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:16,219 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:16,863 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 13:35:16,865 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 13:35:16,866 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 13:35:16,868 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 13:35:16,869 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 13:35:16,870 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 13:35:16,871 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 13:35:16,872 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 13:35:16,873 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 13:35:16,873 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 13:35:17,099 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 13:35:17,297 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:17,304 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:17,465 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:35:17,583 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:35:17,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:35:17,660 WARN L230 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_22f63d4a-1a26-47a0-a464-763ccd80ca2f/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4499,4512] [2021-11-19 13:35:17,661 WARN L230 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_22f63d4a-1a26-47a0-a464-763ccd80ca2f/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4559,4572] [2021-11-19 13:35:17,667 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 13:35:17,670 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 13:35:17,742 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:17,742 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:17,746 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:17,747 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:17,748 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:17,758 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:17,759 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:17,760 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:17,764 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:17,807 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 13:35:17,808 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 13:35:17,809 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 13:35:17,810 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 13:35:17,811 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 13:35:17,812 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 13:35:17,812 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 13:35:17,813 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 13:35:17,814 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 13:35:17,814 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 13:35:17,842 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 13:35:17,931 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:17,932 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:17,997 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:35:18,090 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:35:18,144 WARN L230 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_22f63d4a-1a26-47a0-a464-763ccd80ca2f/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4499,4512] [2021-11-19 13:35:18,145 WARN L230 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_22f63d4a-1a26-47a0-a464-763ccd80ca2f/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4559,4572] [2021-11-19 13:35:18,147 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 13:35:18,148 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 13:35:18,272 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:18,272 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:18,273 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:18,274 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:18,274 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:18,287 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:18,288 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:18,289 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:18,290 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:18,343 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 13:35:18,344 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 13:35:18,345 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 13:35:18,346 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 13:35:18,347 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 13:35:18,349 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 13:35:18,350 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 13:35:18,351 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 13:35:18,351 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 13:35:18,352 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 13:35:18,381 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 13:35:18,497 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:18,498 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 13:35:18,560 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:35:18,901 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:35:18,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:18 WrapperNode [2021-11-19 13:35:18,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:35:18,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:35:18,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:35:18,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:35:18,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:18" (1/1) ... [2021-11-19 13:35:19,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:18" (1/1) ... [2021-11-19 13:35:19,229 INFO L137 Inliner]: procedures = 712, calls = 2737, calls flagged for inlining = 62, calls inlined = 9, statements flattened = 807 [2021-11-19 13:35:19,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:35:19,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:35:19,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:35:19,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:35:19,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:18" (1/1) ... [2021-11-19 13:35:19,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:18" (1/1) ... [2021-11-19 13:35:19,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:18" (1/1) ... [2021-11-19 13:35:19,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:18" (1/1) ... [2021-11-19 13:35:19,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:18" (1/1) ... [2021-11-19 13:35:19,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:18" (1/1) ... [2021-11-19 13:35:19,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:18" (1/1) ... [2021-11-19 13:35:19,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:35:19,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:35:19,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:35:19,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:35:19,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:18" (1/1) ... [2021-11-19 13:35:19,465 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:35:19,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:35:19,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:35:19,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:35:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-11-19 13:35:19,562 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-11-19 13:35:19,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:35:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-19 13:35:19,563 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-19 13:35:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:35:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:35:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-11-19 13:35:19,564 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-11-19 13:35:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2021-11-19 13:35:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 13:35:19,565 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 13:35:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-19 13:35:19,565 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-19 13:35:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 13:35:19,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 13:35:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:35:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:35:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:35:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 13:35:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 13:35:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 13:35:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 13:35:19,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:35:19,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:35:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 13:35:19,568 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 13:35:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:35:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:35:19,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 13:35:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 13:35:19,569 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-19 13:35:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-19 13:35:19,570 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-19 13:35:19,570 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 13:35:19,570 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 13:35:19,571 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-11-19 13:35:19,572 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-11-19 13:35:19,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:35:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-19 13:35:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-19 13:35:19,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:35:19,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:35:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:35:19,578 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_new_from_array [2021-11-19 13:35:19,578 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_new_from_array [2021-11-19 13:35:19,579 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-19 13:35:19,586 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-19 13:35:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2021-11-19 13:35:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-19 13:35:19,587 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-19 13:35:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2021-11-19 13:35:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-19 13:35:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-19 13:35:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-19 13:35:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 13:35:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 13:35:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:35:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 13:35:20,089 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:35:20,091 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:35:20,458 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !true; [2021-11-19 13:35:26,865 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:35:26,881 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:35:26,882 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 13:35:26,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:35:26 BoogieIcfgContainer [2021-11-19 13:35:26,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:35:26,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:35:26,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:35:26,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:35:26,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:35:14" (1/3) ... [2021-11-19 13:35:26,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbbc14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:35:26, skipping insertion in model container [2021-11-19 13:35:26,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:35:18" (2/3) ... [2021-11-19 13:35:26,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbbc14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:35:26, skipping insertion in model container [2021-11-19 13:35:26,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:35:26" (3/3) ... [2021-11-19 13:35:26,902 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_new_from_c_str_harness.i [2021-11-19 13:35:26,908 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:35:26,909 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:35:26,977 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:35:26,985 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 [2021-11-19 13:35:26,985 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 13:35:27,016 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 85 states have internal predecessors, (99), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-11-19 13:35:27,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-19 13:35:27,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:27,026 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:27,027 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:35:27,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:27,034 INFO L85 PathProgramCache]: Analyzing trace with hash 240365959, now seen corresponding path program 1 times [2021-11-19 13:35:27,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:27,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932472310] [2021-11-19 13:35:27,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:27,056 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:27,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:27,060 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:27,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:35:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:28,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 13:35:28,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:28,377 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-19 13:35:28,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:28,719 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-19 13:35:28,720 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:28,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932472310] [2021-11-19 13:35:28,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932472310] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:28,728 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:28,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 13:35:28,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940298226] [2021-11-19 13:35:28,731 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:28,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 13:35:28,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:28,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 13:35:28,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:35:28,788 INFO L87 Difference]: Start difference. First operand has 135 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 85 states have internal predecessors, (99), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-19 13:35:28,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:28,871 INFO L93 Difference]: Finished difference Result 264 states and 347 transitions. [2021-11-19 13:35:28,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 13:35:28,876 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2021-11-19 13:35:28,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:28,894 INFO L225 Difference]: With dead ends: 264 [2021-11-19 13:35:28,895 INFO L226 Difference]: Without dead ends: 129 [2021-11-19 13:35:28,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:35:28,910 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:28,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:35:28,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-19 13:35:29,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-11-19 13:35:29,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 79 states have (on average 1.1518987341772151) internal successors, (91), 80 states have internal predecessors, (91), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-11-19 13:35:29,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 158 transitions. [2021-11-19 13:35:29,015 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 158 transitions. Word has length 73 [2021-11-19 13:35:29,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:29,017 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 158 transitions. [2021-11-19 13:35:29,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-19 13:35:29,018 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 158 transitions. [2021-11-19 13:35:29,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-19 13:35:29,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:29,023 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:29,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:29,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:29,235 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:35:29,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:29,240 INFO L85 PathProgramCache]: Analyzing trace with hash -51091837, now seen corresponding path program 1 times [2021-11-19 13:35:29,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:29,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590331775] [2021-11-19 13:35:29,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:29,252 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:29,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:29,253 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:29,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:35:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:30,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:35:30,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:30,545 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-19 13:35:30,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:30,953 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-19 13:35:30,954 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:30,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590331775] [2021-11-19 13:35:30,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1590331775] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:30,954 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:30,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-19 13:35:30,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521537817] [2021-11-19 13:35:30,955 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:30,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:35:30,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:30,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:35:30,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:35:30,959 INFO L87 Difference]: Start difference. First operand 129 states and 158 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-19 13:35:31,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:31,066 INFO L93 Difference]: Finished difference Result 177 states and 215 transitions. [2021-11-19 13:35:31,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:35:31,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) Word has length 73 [2021-11-19 13:35:31,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:31,071 INFO L225 Difference]: With dead ends: 177 [2021-11-19 13:35:31,071 INFO L226 Difference]: Without dead ends: 133 [2021-11-19 13:35:31,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:35:31,073 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 2 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:31,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 620 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:35:31,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-19 13:35:31,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-11-19 13:35:31,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 82 states have (on average 1.146341463414634) internal successors, (94), 83 states have internal predecessors, (94), 34 states have call successors, (34), 15 states have call predecessors, (34), 16 states have return successors, (34), 34 states have call predecessors, (34), 33 states have call successors, (34) [2021-11-19 13:35:31,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 162 transitions. [2021-11-19 13:35:31,097 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 162 transitions. Word has length 73 [2021-11-19 13:35:31,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:31,098 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 162 transitions. [2021-11-19 13:35:31,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-19 13:35:31,099 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 162 transitions. [2021-11-19 13:35:31,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-19 13:35:31,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:31,102 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:31,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:31,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:31,327 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:35:31,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:31,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1310225305, now seen corresponding path program 1 times [2021-11-19 13:35:31,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:31,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700223335] [2021-11-19 13:35:31,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:31,330 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:31,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:31,332 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:31,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:35:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:32,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 13:35:32,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:32,635 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-19 13:35:32,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:33,029 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-19 13:35:33,029 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:33,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700223335] [2021-11-19 13:35:33,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700223335] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:33,030 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:33,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-19 13:35:33,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413247883] [2021-11-19 13:35:33,031 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:33,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:35:33,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:33,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:35:33,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:35:33,032 INFO L87 Difference]: Start difference. First operand 133 states and 162 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-19 13:35:33,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:33,230 INFO L93 Difference]: Finished difference Result 183 states and 220 transitions. [2021-11-19 13:35:33,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:35:33,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 79 [2021-11-19 13:35:33,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:33,239 INFO L225 Difference]: With dead ends: 183 [2021-11-19 13:35:33,239 INFO L226 Difference]: Without dead ends: 144 [2021-11-19 13:35:33,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:35:33,241 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 9 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:33,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 767 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:35:33,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-19 13:35:33,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 138. [2021-11-19 13:35:33,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 86 states have (on average 1.1395348837209303) internal successors, (98), 87 states have internal predecessors, (98), 34 states have call successors, (34), 15 states have call predecessors, (34), 17 states have return successors, (35), 35 states have call predecessors, (35), 33 states have call successors, (35) [2021-11-19 13:35:33,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 167 transitions. [2021-11-19 13:35:33,270 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 167 transitions. Word has length 79 [2021-11-19 13:35:33,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:33,271 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 167 transitions. [2021-11-19 13:35:33,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-19 13:35:33,272 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 167 transitions. [2021-11-19 13:35:33,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-19 13:35:33,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:33,274 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:33,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:33,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:33,475 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:35:33,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:33,476 INFO L85 PathProgramCache]: Analyzing trace with hash 522363280, now seen corresponding path program 1 times [2021-11-19 13:35:33,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:33,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812506105] [2021-11-19 13:35:33,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:33,479 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:33,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:33,480 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:33,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:35:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:34,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 13:35:34,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:34,847 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-19 13:35:34,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:35,342 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-19 13:35:35,342 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:35,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812506105] [2021-11-19 13:35:35,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812506105] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:35,343 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:35,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 15 [2021-11-19 13:35:35,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358167457] [2021-11-19 13:35:35,343 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:35,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-19 13:35:35,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:35,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-19 13:35:35,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-11-19 13:35:35,345 INFO L87 Difference]: Start difference. First operand 138 states and 167 transitions. Second operand has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 12 states have internal predecessors, (43), 5 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-19 13:35:36,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:36,019 INFO L93 Difference]: Finished difference Result 144 states and 172 transitions. [2021-11-19 13:35:36,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 13:35:36,020 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 12 states have internal predecessors, (43), 5 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 81 [2021-11-19 13:35:36,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:36,023 INFO L225 Difference]: With dead ends: 144 [2021-11-19 13:35:36,023 INFO L226 Difference]: Without dead ends: 129 [2021-11-19 13:35:36,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2021-11-19 13:35:36,025 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 57 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:36,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 1696 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 13:35:36,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-19 13:35:36,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 125. [2021-11-19 13:35:36,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 76 states have (on average 1.118421052631579) internal successors, (85), 77 states have internal predecessors, (85), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-19 13:35:36,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 150 transitions. [2021-11-19 13:35:36,042 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 150 transitions. Word has length 81 [2021-11-19 13:35:36,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:36,043 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 150 transitions. [2021-11-19 13:35:36,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 12 states have internal predecessors, (43), 5 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-19 13:35:36,044 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 150 transitions. [2021-11-19 13:35:36,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-19 13:35:36,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:36,048 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:36,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:36,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:36,271 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:35:36,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:36,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1279492750, now seen corresponding path program 1 times [2021-11-19 13:35:36,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:36,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1155374326] [2021-11-19 13:35:36,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:36,275 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:36,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:36,277 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:36,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:35:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:37,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 1558 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 13:35:37,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:37,831 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-19 13:35:37,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:38,458 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-19 13:35:38,458 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:38,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1155374326] [2021-11-19 13:35:38,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1155374326] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:38,459 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:38,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-19 13:35:38,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371849675] [2021-11-19 13:35:38,460 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:38,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:35:38,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:38,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:35:38,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:35:38,462 INFO L87 Difference]: Start difference. First operand 125 states and 150 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 13:35:38,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:38,541 INFO L93 Difference]: Finished difference Result 188 states and 224 transitions. [2021-11-19 13:35:38,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:35:38,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 122 [2021-11-19 13:35:38,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:38,547 INFO L225 Difference]: With dead ends: 188 [2021-11-19 13:35:38,547 INFO L226 Difference]: Without dead ends: 133 [2021-11-19 13:35:38,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:35:38,549 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 4 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:38,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 725 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:35:38,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-19 13:35:38,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2021-11-19 13:35:38,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 80 states have (on average 1.1125) internal successors, (89), 81 states have internal predecessors, (89), 33 states have call successors, (33), 15 states have call predecessors, (33), 16 states have return successors, (33), 33 states have call predecessors, (33), 32 states have call successors, (33) [2021-11-19 13:35:38,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 155 transitions. [2021-11-19 13:35:38,566 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 155 transitions. Word has length 122 [2021-11-19 13:35:38,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:38,567 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 155 transitions. [2021-11-19 13:35:38,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 13:35:38,568 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 155 transitions. [2021-11-19 13:35:38,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-19 13:35:38,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:38,572 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:38,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:38,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:38,799 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:35:38,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:38,800 INFO L85 PathProgramCache]: Analyzing trace with hash -709927470, now seen corresponding path program 1 times [2021-11-19 13:35:38,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:38,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799429414] [2021-11-19 13:35:38,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:38,804 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:38,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:38,806 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:38,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:35:39,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:39,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-19 13:35:39,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:40,589 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-19 13:35:40,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:41,379 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-19 13:35:41,379 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:35:41,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799429414] [2021-11-19 13:35:41,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799429414] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:35:41,379 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:35:41,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-19 13:35:41,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109291530] [2021-11-19 13:35:41,380 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:35:41,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:35:41,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:35:41,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:35:41,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:35:41,382 INFO L87 Difference]: Start difference. First operand 130 states and 155 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 7 states have internal predecessors, (71), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-19 13:35:41,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:35:41,693 INFO L93 Difference]: Finished difference Result 185 states and 220 transitions. [2021-11-19 13:35:41,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 13:35:41,694 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 7 states have internal predecessors, (71), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) Word has length 128 [2021-11-19 13:35:41,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:35:41,697 INFO L225 Difference]: With dead ends: 185 [2021-11-19 13:35:41,697 INFO L226 Difference]: Without dead ends: 123 [2021-11-19 13:35:41,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:35:41,699 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 2 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:35:41,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1152 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:35:41,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-19 13:35:41,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2021-11-19 13:35:41,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 75 states have (on average 1.0933333333333333) internal successors, (82), 76 states have internal predecessors, (82), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-19 13:35:41,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2021-11-19 13:35:41,714 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 128 [2021-11-19 13:35:41,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:35:41,715 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2021-11-19 13:35:41,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 7 states have internal predecessors, (71), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-19 13:35:41,715 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2021-11-19 13:35:41,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-19 13:35:41,718 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:35:41,719 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:35:41,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:35:41,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:35:41,938 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:35:41,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:35:41,939 INFO L85 PathProgramCache]: Analyzing trace with hash 350917961, now seen corresponding path program 1 times [2021-11-19 13:35:41,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:35:41,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499279681] [2021-11-19 13:35:41,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:35:41,942 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:35:41,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:35:41,943 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:35:41,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22f63d4a-1a26-47a0-a464-763ccd80ca2f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:35:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:35:43,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 1580 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-19 13:35:43,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:35:45,262 INFO L354 Elim1Store]: treesize reduction 1099, result has 7.0 percent of original size [2021-11-19 13:35:45,263 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 7 case distinctions, treesize of input 70 treesize of output 95 [2021-11-19 13:35:46,807 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:35:46,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 138 treesize of output 74 [2021-11-19 13:35:48,208 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-11-19 13:35:48,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:35:51,333 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 495 treesize of output 481