./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_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_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/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_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/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_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/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 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:48:49,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:48:49,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:48:49,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:48:49,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:48:49,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:48:49,751 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:48:49,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:48:49,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:48:49,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:48:49,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:48:49,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:48:49,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:48:49,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:48:49,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:48:49,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:48:49,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:48:49,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:48:49,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:48:49,787 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:48:49,790 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:48:49,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:48:49,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:48:49,798 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:48:49,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:48:49,811 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:48:49,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:48:49,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:48:49,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:48:49,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:48:49,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:48:49,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:48:49,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:48:49,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:48:49,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:48:49,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:48:49,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:48:49,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:48:49,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:48:49,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:48:49,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:48:49,832 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:48:49,889 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:48:49,889 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:48:49,891 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:48:49,891 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:48:49,892 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:48:49,892 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:48:49,892 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:48:49,893 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:48:49,900 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:48:49,900 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:48:49,902 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:48:49,902 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:48:49,902 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:48:49,903 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:48:49,903 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:48:49,903 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:48:49,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:48:49,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:48:49,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:48:49,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:48:49,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:48:49,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:48:49,906 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:48:49,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:48:49,907 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:48:49,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:48:49,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:48:49,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:48:49,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:48:49,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:48:49,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:48:49,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:48:49,911 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:48:49,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:48:49,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:48:49,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:48:49,912 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:48:49,912 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_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 [2021-11-19 14:48:50,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:48:50,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:48:50,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:48:50,277 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:48:50,278 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:48:50,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2021-11-19 14:48:50,368 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/data/c7571df44/00101293f07d449093ae30d9d709fb17/FLAGaad9a9c56 [2021-11-19 14:48:51,608 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:48:51,608 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2021-11-19 14:48:51,680 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/data/c7571df44/00101293f07d449093ae30d9d709fb17/FLAGaad9a9c56 [2021-11-19 14:48:51,904 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/data/c7571df44/00101293f07d449093ae30d9d709fb17 [2021-11-19 14:48:51,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:48:51,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:48:51,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:48:51,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:48:51,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:48:51,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:48:51" (1/1) ... [2021-11-19 14:48:51,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de608fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:51, skipping insertion in model container [2021-11-19 14:48:51,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:48:51" (1/1) ... [2021-11-19 14:48:51,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:48:52,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:48:52,505 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_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2021-11-19 14:48:52,516 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_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2021-11-19 14:48:52,548 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:48:52,557 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:48:53,737 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:48:53,738 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:48:53,739 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:48:53,740 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:48:53,742 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:48:53,769 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:48:53,770 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:48:53,772 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:48:53,773 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:48:54,319 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:48:54,324 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:48:54,326 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:48:54,330 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:48:54,336 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:48:54,339 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:48:54,345 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:48:54,347 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:48:54,349 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:48:54,353 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:48:54,587 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:48:54,741 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:48:54,755 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:48:54,944 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:48:55,034 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 14:48:55,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4167e3de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:48:55, skipping insertion in model container [2021-11-19 14:48:55,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:48:55,036 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:48:55,039 INFO L158 Benchmark]: Toolchain (without parser) took 3128.23ms. Allocated memory was 98.6MB in the beginning and 142.6MB in the end (delta: 44.0MB). Free memory was 57.5MB in the beginning and 98.2MB in the end (delta: -40.7MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2021-11-19 14:48:55,040 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 98.6MB. Free memory was 51.8MB in the beginning and 51.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:48:55,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3125.03ms. Allocated memory was 98.6MB in the beginning and 142.6MB in the end (delta: 44.0MB). Free memory was 57.3MB in the beginning and 98.2MB in the end (delta: -40.9MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2021-11-19 14:48:55,044 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 98.6MB. Free memory was 51.8MB in the beginning and 51.7MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3125.03ms. Allocated memory was 98.6MB in the beginning and 142.6MB in the end (delta: 44.0MB). Free memory was 57.3MB in the beginning and 98.2MB in the end (delta: -40.9MB). Peak memory consumption was 36.6MB. 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_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/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_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/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_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/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 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:48:57,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:48:57,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:48:57,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:48:57,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:48:57,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:48:57,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:48:57,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:48:57,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:48:57,905 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:48:57,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:48:57,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:48:57,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:48:57,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:48:57,915 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:48:57,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:48:57,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:48:57,925 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:48:57,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:48:57,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:48:57,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:48:57,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:48:57,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:48:57,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:48:57,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:48:57,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:48:57,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:48:57,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:48:57,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:48:57,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:48:57,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:48:57,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:48:57,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:48:57,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:48:57,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:48:57,973 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:48:57,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:48:57,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:48:57,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:48:57,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:48:57,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:48:57,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:48:58,032 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:48:58,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:48:58,034 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:48:58,034 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:48:58,034 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:48:58,035 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:48:58,035 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:48:58,035 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:48:58,036 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:48:58,036 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:48:58,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:48:58,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:48:58,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:48:58,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:48:58,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:48:58,040 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:48:58,041 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:48:58,041 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:48:58,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:48:58,041 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:48:58,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:48:58,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:48:58,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:48:58,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:48:58,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:48:58,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:48:58,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:48:58,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:48:58,043 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:48:58,044 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:48:58,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:48:58,044 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:48:58,044 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:48:58,045 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_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 [2021-11-19 14:48:58,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:48:58,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:48:58,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:48:58,564 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:48:58,565 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:48:58,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2021-11-19 14:48:58,650 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/data/64ea09b87/96d2116142264632b1b6beb5cbb4a23c/FLAG5af3c4c77 [2021-11-19 14:48:59,866 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:48:59,868 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2021-11-19 14:48:59,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/data/64ea09b87/96d2116142264632b1b6beb5cbb4a23c/FLAG5af3c4c77 [2021-11-19 14:49:00,177 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/data/64ea09b87/96d2116142264632b1b6beb5cbb4a23c [2021-11-19 14:49:00,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:49:00,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:49:00,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:49:00,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:49:00,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:49:00,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:49:00" (1/1) ... [2021-11-19 14:49:00,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60569fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:00, skipping insertion in model container [2021-11-19 14:49:00,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:49:00" (1/1) ... [2021-11-19 14:49:00,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:49:00,348 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:49:00,630 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_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2021-11-19 14:49:00,638 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_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2021-11-19 14:49:00,670 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:49:00,678 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:49:02,088 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:02,089 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:02,090 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:02,091 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:02,093 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:02,113 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:02,114 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:02,118 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:02,119 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:02,703 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:49:02,704 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:49:02,706 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:49:02,707 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:49:02,709 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:49:02,710 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:49:02,711 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:49:02,712 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:49:02,713 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:49:02,739 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:49:02,946 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:49:03,131 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,131 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,232 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:49:03,332 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:49:03,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:49:03,455 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_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2021-11-19 14:49:03,456 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_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2021-11-19 14:49:03,458 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:49:03,461 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:49:03,527 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,528 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,528 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,529 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,530 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,553 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,554 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,556 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,556 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,620 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:49:03,621 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:49:03,623 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:49:03,624 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:49:03,625 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:49:03,625 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:49:03,626 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:49:03,630 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:49:03,630 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:49:03,631 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:49:03,674 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:49:03,796 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,796 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,837 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:49:03,897 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:49:03,926 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_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2021-11-19 14:49:03,927 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_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2021-11-19 14:49:03,928 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-19 14:49:03,929 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-19 14:49:03,974 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,975 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,975 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,975 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,976 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,984 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,985 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,987 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:03,987 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:04,066 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-19 14:49:04,067 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-19 14:49:04,068 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-19 14:49:04,069 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-19 14:49:04,070 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-19 14:49:04,071 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-19 14:49:04,072 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-19 14:49:04,073 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-19 14:49:04,074 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-19 14:49:04,075 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-19 14:49:04,110 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-19 14:49:04,215 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:04,216 WARN L1537 CHandler]: Possible shadowing of function index [2021-11-19 14:49:04,255 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:49:04,638 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:49:04,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:04 WrapperNode [2021-11-19 14:49:04,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:49:04,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:49:04,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:49:04,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:49:04,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:04" (1/1) ... [2021-11-19 14:49:04,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:04" (1/1) ... [2021-11-19 14:49:04,916 INFO L137 Inliner]: procedures = 712, calls = 2633, calls flagged for inlining = 60, calls inlined = 9, statements flattened = 935 [2021-11-19 14:49:04,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:49:04,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:49:04,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:49:04,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:49:04,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:04" (1/1) ... [2021-11-19 14:49:04,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:04" (1/1) ... [2021-11-19 14:49:04,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:04" (1/1) ... [2021-11-19 14:49:04,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:04" (1/1) ... [2021-11-19 14:49:05,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:04" (1/1) ... [2021-11-19 14:49:05,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:04" (1/1) ... [2021-11-19 14:49:05,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:04" (1/1) ... [2021-11-19 14:49:05,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:49:05,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:49:05,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:49:05,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:49:05,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:04" (1/1) ... [2021-11-19 14:49:05,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:49:05,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:49:05,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:49:05,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:49:05,216 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2021-11-19 14:49:05,216 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2021-11-19 14:49:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2021-11-19 14:49:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2021-11-19 14:49:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:49:05,217 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-19 14:49:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-19 14:49:05,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:49:05,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:49:05,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:49:05,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2021-11-19 14:49:05,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:49:05,221 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:49:05,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:49:05,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:49:05,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:49:05,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:49:05,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:49:05,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:49:05,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:49:05,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:49:05,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:49:05,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:49:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:49:05,223 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-19 14:49:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-19 14:49:05,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:49:05,224 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-19 14:49:05,224 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-19 14:49:05,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:49:05,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:49:05,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:49:05,225 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 14:49:05,226 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 14:49:05,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:49:05,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:49:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:49:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:49:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:49:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2021-11-19 14:49:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2021-11-19 14:49:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-19 14:49:05,233 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-19 14:49:05,234 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-19 14:49:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:49:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:49:05,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:49:05,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:49:05,652 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:49:05,654 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:49:13,917 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:49:13,931 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:49:13,932 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:49:13,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:49:13 BoogieIcfgContainer [2021-11-19 14:49:13,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:49:13,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:49:13,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:49:13,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:49:13,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:49:00" (1/3) ... [2021-11-19 14:49:13,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77954f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:49:13, skipping insertion in model container [2021-11-19 14:49:13,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:49:04" (2/3) ... [2021-11-19 14:49:13,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77954f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:49:13, skipping insertion in model container [2021-11-19 14:49:13,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:49:13" (3/3) ... [2021-11-19 14:49:13,946 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_harness.i [2021-11-19 14:49:13,953 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:49:13,953 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:49:14,039 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:49:14,045 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 14:49:14,046 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:49:14,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 80 states have (on average 1.2625) internal successors, (101), 81 states have internal predecessors, (101), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-11-19 14:49:14,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-19 14:49:14,084 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:14,085 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:14,086 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:49:14,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:14,093 INFO L85 PathProgramCache]: Analyzing trace with hash -132459702, now seen corresponding path program 1 times [2021-11-19 14:49:14,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:14,113 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299203991] [2021-11-19 14:49:14,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:14,114 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:14,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:14,119 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:14,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:49:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:15,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 1485 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:49:15,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:15,486 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-11-19 14:49:15,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:15,737 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-19 14:49:15,738 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:15,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299203991] [2021-11-19 14:49:15,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299203991] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:49:15,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:49:15,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-19 14:49:15,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917190621] [2021-11-19 14:49:15,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:15,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:49:15,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:15,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:49:15,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:49:15,784 INFO L87 Difference]: Start difference. First operand has 125 states, 80 states have (on average 1.2625) internal successors, (101), 81 states have internal predecessors, (101), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 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 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 14:49:15,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:15,835 INFO L93 Difference]: Finished difference Result 247 states and 357 transitions. [2021-11-19 14:49:15,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:49:15,845 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 84 [2021-11-19 14:49:15,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:15,864 INFO L225 Difference]: With dead ends: 247 [2021-11-19 14:49:15,864 INFO L226 Difference]: Without dead ends: 115 [2021-11-19 14:49:15,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 166 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 14:49:15,882 INFO L933 BasicCegarLoop]: 167 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, 167 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 14:49:15,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:49:15,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-19 14:49:15,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2021-11-19 14:49:15,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 74 states have internal predecessors, (89), 34 states have call successors, (34), 9 states have call predecessors, (34), 8 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-19 14:49:15,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2021-11-19 14:49:15,945 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 84 [2021-11-19 14:49:15,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:15,946 INFO L470 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2021-11-19 14:49:15,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-19 14:49:15,947 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2021-11-19 14:49:15,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-19 14:49:15,952 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:15,953 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:15,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:49:16,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:16,167 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:49:16,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:16,168 INFO L85 PathProgramCache]: Analyzing trace with hash 786611006, now seen corresponding path program 1 times [2021-11-19 14:49:16,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:16,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464861776] [2021-11-19 14:49:16,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:16,172 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:16,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:16,174 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:16,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:49:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:17,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 1485 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:49:17,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:17,729 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-19 14:49:17,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:18,196 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-19 14:49:18,196 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:18,196 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464861776] [2021-11-19 14:49:18,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464861776] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:49:18,197 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:49:18,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-19 14:49:18,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527765168] [2021-11-19 14:49:18,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:18,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:49:18,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:18,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:49:18,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:49:18,201 INFO L87 Difference]: Start difference. First operand 115 states and 154 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-19 14:49:18,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:18,503 INFO L93 Difference]: Finished difference Result 214 states and 295 transitions. [2021-11-19 14:49:18,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:49:18,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 84 [2021-11-19 14:49:18,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:18,511 INFO L225 Difference]: With dead ends: 214 [2021-11-19 14:49:18,512 INFO L226 Difference]: Without dead ends: 118 [2021-11-19 14:49:18,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:49:18,514 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 39 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:18,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 494 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:49:18,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-19 14:49:18,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-11-19 14:49:18,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 77 states have internal predecessors, (91), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (37), 31 states have call predecessors, (37), 31 states have call successors, (37) [2021-11-19 14:49:18,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 162 transitions. [2021-11-19 14:49:18,550 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 162 transitions. Word has length 84 [2021-11-19 14:49:18,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:18,550 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 162 transitions. [2021-11-19 14:49:18,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-19 14:49:18,551 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 162 transitions. [2021-11-19 14:49:18,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-19 14:49:18,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:18,561 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:18,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:49:18,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:18,778 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:49:18,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:18,779 INFO L85 PathProgramCache]: Analyzing trace with hash -89717469, now seen corresponding path program 1 times [2021-11-19 14:49:18,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:18,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950990432] [2021-11-19 14:49:18,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:18,784 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:18,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:18,786 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:18,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:49:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:19,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 1489 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:49:19,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:20,312 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-19 14:49:20,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:20,793 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-11-19 14:49:20,794 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:20,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950990432] [2021-11-19 14:49:20,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950990432] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:49:20,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:49:20,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2021-11-19 14:49:20,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422537653] [2021-11-19 14:49:20,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:20,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:49:20,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:20,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:49:20,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:49:20,796 INFO L87 Difference]: Start difference. First operand 118 states and 162 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 14:49:21,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:21,165 INFO L93 Difference]: Finished difference Result 205 states and 283 transitions. [2021-11-19 14:49:21,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:49:21,169 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 86 [2021-11-19 14:49:21,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:21,172 INFO L225 Difference]: With dead ends: 205 [2021-11-19 14:49:21,172 INFO L226 Difference]: Without dead ends: 118 [2021-11-19 14:49:21,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:49:21,187 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 72 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:21,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 597 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:49:21,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-19 14:49:21,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-11-19 14:49:21,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 77 states have internal predecessors, (91), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2021-11-19 14:49:21,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 159 transitions. [2021-11-19 14:49:21,225 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 159 transitions. Word has length 86 [2021-11-19 14:49:21,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:21,228 INFO L470 AbstractCegarLoop]: Abstraction has 118 states and 159 transitions. [2021-11-19 14:49:21,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 14:49:21,228 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 159 transitions. [2021-11-19 14:49:21,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-19 14:49:21,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:21,231 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 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] [2021-11-19 14:49:21,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:49:21,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:21,447 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:49:21,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:21,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1258406584, now seen corresponding path program 2 times [2021-11-19 14:49:21,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:21,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831677400] [2021-11-19 14:49:21,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:49:21,453 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:21,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:21,454 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:21,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:49:41,049 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 14:49:41,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:49:41,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 1493 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:49:41,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:41,622 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-19 14:49:41,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:42,113 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-11-19 14:49:42,113 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:42,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831677400] [2021-11-19 14:49:42,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1831677400] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:49:42,113 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:49:42,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-19 14:49:42,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211518373] [2021-11-19 14:49:42,114 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:42,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:49:42,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:42,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:49:42,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:49:42,116 INFO L87 Difference]: Start difference. First operand 118 states and 159 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 14:49:44,489 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:49:44,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:44,782 INFO L93 Difference]: Finished difference Result 220 states and 302 transitions. [2021-11-19 14:49:44,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:49:44,786 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 88 [2021-11-19 14:49:44,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:44,789 INFO L225 Difference]: With dead ends: 220 [2021-11-19 14:49:44,789 INFO L226 Difference]: Without dead ends: 138 [2021-11-19 14:49:44,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:49:44,791 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 81 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:44,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 1015 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 111 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2021-11-19 14:49:44,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-11-19 14:49:44,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 119. [2021-11-19 14:49:44,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 78 states have internal predecessors, (91), 35 states have call successors, (35), 9 states have call predecessors, (35), 9 states have return successors, (34), 31 states have call predecessors, (34), 32 states have call successors, (34) [2021-11-19 14:49:44,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 160 transitions. [2021-11-19 14:49:44,811 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 160 transitions. Word has length 88 [2021-11-19 14:49:44,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:44,812 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 160 transitions. [2021-11-19 14:49:44,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 14:49:44,812 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 160 transitions. [2021-11-19 14:49:44,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-19 14:49:44,814 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:44,815 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:44,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:49:45,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:45,035 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:49:45,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:45,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1135513054, now seen corresponding path program 1 times [2021-11-19 14:49:45,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:45,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168465038] [2021-11-19 14:49:45,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:45,039 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:45,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:45,040 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:45,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:49:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:46,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 1514 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:49:46,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:46,553 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-19 14:49:46,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:46,793 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-11-19 14:49:46,794 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:46,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168465038] [2021-11-19 14:49:46,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168465038] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:49:46,794 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:49:46,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 14:49:46,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927006866] [2021-11-19 14:49:46,795 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:46,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:49:46,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:46,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:49:46,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:49:46,797 INFO L87 Difference]: Start difference. First operand 119 states and 160 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-19 14:49:46,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:46,971 INFO L93 Difference]: Finished difference Result 198 states and 265 transitions. [2021-11-19 14:49:46,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:49:46,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 91 [2021-11-19 14:49:46,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:46,978 INFO L225 Difference]: With dead ends: 198 [2021-11-19 14:49:46,978 INFO L226 Difference]: Without dead ends: 120 [2021-11-19 14:49:46,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:49:46,980 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:46,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 301 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:49:46,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-19 14:49:46,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-11-19 14:49:46,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 79 states have internal predecessors, (92), 35 states have call successors, (35), 9 states have call predecessors, (35), 9 states have return successors, (34), 31 states have call predecessors, (34), 32 states have call successors, (34) [2021-11-19 14:49:46,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 161 transitions. [2021-11-19 14:49:46,998 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 161 transitions. Word has length 91 [2021-11-19 14:49:46,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:46,998 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 161 transitions. [2021-11-19 14:49:46,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-19 14:49:47,005 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 161 transitions. [2021-11-19 14:49:47,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-19 14:49:47,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:47,007 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:47,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:49:47,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:47,208 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:49:47,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:47,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1722319068, now seen corresponding path program 1 times [2021-11-19 14:49:47,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:47,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140153] [2021-11-19 14:49:47,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:47,211 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:47,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:47,211 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:47,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:49:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:48,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 1516 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:49:48,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:48,931 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-19 14:49:48,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:49,438 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-19 14:49:49,438 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:49,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140153] [2021-11-19 14:49:49,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140153] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:49:49,438 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:49:49,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-19 14:49:49,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537758701] [2021-11-19 14:49:49,439 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:49,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:49:49,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:49,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:49:49,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:49:49,440 INFO L87 Difference]: Start difference. First operand 120 states and 161 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 14:49:51,845 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:49:52,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:52,121 INFO L93 Difference]: Finished difference Result 215 states and 290 transitions. [2021-11-19 14:49:52,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:49:52,125 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 91 [2021-11-19 14:49:52,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:52,128 INFO L225 Difference]: With dead ends: 215 [2021-11-19 14:49:52,128 INFO L226 Difference]: Without dead ends: 139 [2021-11-19 14:49:52,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:49:52,130 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 83 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:52,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 967 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 103 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2021-11-19 14:49:52,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-19 14:49:52,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 119. [2021-11-19 14:49:52,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 78 states have internal predecessors, (92), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2021-11-19 14:49:52,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 158 transitions. [2021-11-19 14:49:52,149 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 158 transitions. Word has length 91 [2021-11-19 14:49:52,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:52,150 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 158 transitions. [2021-11-19 14:49:52,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-19 14:49:52,150 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 158 transitions. [2021-11-19 14:49:52,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-19 14:49:52,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:52,152 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:52,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:49:52,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:52,375 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:49:52,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:52,376 INFO L85 PathProgramCache]: Analyzing trace with hash -751775534, now seen corresponding path program 1 times [2021-11-19 14:49:52,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:52,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924902260] [2021-11-19 14:49:52,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:52,378 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:52,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:52,379 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:52,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:49:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:49:53,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 1501 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 14:49:53,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:49:53,891 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-19 14:49:53,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:49:54,353 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-19 14:49:54,354 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:49:54,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924902260] [2021-11-19 14:49:54,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924902260] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:49:54,354 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:49:54,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2021-11-19 14:49:54,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61343785] [2021-11-19 14:49:54,355 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:49:54,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:49:54,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:49:54,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:49:54,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:49:54,357 INFO L87 Difference]: Start difference. First operand 119 states and 158 transitions. Second operand has 12 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-19 14:49:54,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:49:54,622 INFO L93 Difference]: Finished difference Result 131 states and 177 transitions. [2021-11-19 14:49:54,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:49:54,624 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 1 states have call successors, (13) Word has length 92 [2021-11-19 14:49:54,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:49:54,626 INFO L225 Difference]: With dead ends: 131 [2021-11-19 14:49:54,627 INFO L226 Difference]: Without dead ends: 129 [2021-11-19 14:49:54,627 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:49:54,628 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 19 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1330 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:49:54,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 1330 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:49:54,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-19 14:49:54,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2021-11-19 14:49:54,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 81 states have (on average 1.2098765432098766) internal successors, (98), 85 states have internal predecessors, (98), 35 states have call successors, (35), 10 states have call predecessors, (35), 11 states have return successors, (41), 32 states have call predecessors, (41), 32 states have call successors, (41) [2021-11-19 14:49:54,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 174 transitions. [2021-11-19 14:49:54,656 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 174 transitions. Word has length 92 [2021-11-19 14:49:54,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:49:54,658 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 174 transitions. [2021-11-19 14:49:54,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.1) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-19 14:49:54,658 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 174 transitions. [2021-11-19 14:49:54,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-19 14:49:54,660 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:49:54,660 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:54,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:49:54,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:49:54,883 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:49:54,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:49:54,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1289038822, now seen corresponding path program 1 times [2021-11-19 14:49:54,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:49:54,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202141556] [2021-11-19 14:49:54,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:49:54,887 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:49:54,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:49:54,888 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:49:54,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a0ad0fb-90bd-422b-9d3b-feaa166936ff/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:50:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:50:04,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 1510 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-19 14:50:04,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:50:04,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-19 14:50:04,923 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-19 14:50:04,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2021-11-19 14:50:11,225 INFO L354 Elim1Store]: treesize reduction 116, result has 22.1 percent of original size [2021-11-19 14:50:11,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 61 treesize of output 83 [2021-11-19 14:50:17,026 INFO L354 Elim1Store]: treesize reduction 69, result has 34.9 percent of original size [2021-11-19 14:50:17,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 68 treesize of output 95 [2021-11-19 14:50:28,413 INFO L354 Elim1Store]: treesize reduction 64, result has 21.0 percent of original size [2021-11-19 14:50:28,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 113 treesize of output 119 [2021-11-19 14:50:28,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:50:28,624 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-11-19 14:50:28,632 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:50:28,633 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:50:28,634 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:50:28,635 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:50:28,636 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:50:28,636 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:50:28,637 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 14:50:31,918 INFO L354 Elim1Store]: treesize reduction 6011, result has 2.1 percent of original size [2021-11-19 14:50:31,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 44 case distinctions, treesize of input 113 treesize of output 158 [2021-11-19 14:50:47,004 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 45 proven. 33 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-19 14:50:47,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:50:49,391 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:50:49,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 511 [2021-11-19 14:52:00,347 WARN L838 $PredicateComparison]: unable to prove that (forall ((|aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset| (_ BitVec 64)) (|v_ULTIMATE.start_save_byte_from_array_#in~storage#1.base_6| (_ BitVec 64)) (v_DerPreprocessor_2 (_ BitVec 8)) (|v_aws_byte_cursor_read_~#slice~0#1.base_13| (_ BitVec 64)) (|v_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base_20| (_ BitVec 64)) (|v_ULTIMATE.start_aws_byte_cursor_read_harness_~#old_cur~0#1.base_19| (_ BitVec 64))) (let ((.cse1 (store (store |c_#valid| |v_ULTIMATE.start_aws_byte_cursor_read_harness_~#old_cur~0#1.base_19| (_ bv1 1)) |v_ULTIMATE.start_save_byte_from_array_#in~storage#1.base_6| (_ bv1 1)))) (or (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |v_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base_20| (store (store (store (store (store (store (store (store (store (select |c_#memory_int| |v_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base_20|) (bvadd (_ bv8 64) |aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|) v_DerPreprocessor_2) |aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset| ((_ extract 7 0) (_ bv0 64))) (bvadd (_ bv1 64) |aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|) ((_ extract 15 8) (_ bv0 64))) (bvadd (_ bv2 64) |aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|) ((_ extract 23 16) (_ bv0 64))) (bvadd (_ bv3 64) |aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|) ((_ extract 31 24) (_ bv0 64))) (bvadd (_ bv4 64) |aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|) ((_ extract 39 32) (_ bv0 64))) (bvadd |aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset| (_ bv5 64)) ((_ extract 47 40) (_ bv0 64))) (bvadd (_ bv6 64) |aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|) ((_ extract 55 48) (_ bv0 64))) (bvadd (_ bv7 64) |aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|) ((_ extract 63 56) (_ bv0 64)))) |c_ULTIMATE.start_aws_byte_cursor_read_harness_~#cur~3#1.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_read_harness_~#cur~3#1.offset| (_ bv7 64))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_read_harness_~#cur~3#1.offset| (_ bv6 64)))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_read_harness_~#cur~3#1.offset| (_ bv5 64)))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_read_harness_~#cur~3#1.offset| (_ bv4 64)))) (select .cse0 (bvadd (_ bv3 64) |c_ULTIMATE.start_aws_byte_cursor_read_harness_~#cur~3#1.offset|))) (select .cse0 (bvadd (_ bv2 64) |c_ULTIMATE.start_aws_byte_cursor_read_harness_~#cur~3#1.offset|))) (select .cse0 (bvadd |c_ULTIMATE.start_aws_byte_cursor_read_harness_~#cur~3#1.offset| (_ bv1 64)))) (select .cse0 |c_ULTIMATE.start_aws_byte_cursor_read_harness_~#cur~3#1.offset|)))) (not (= (_ bv0 1) (select .cse1 |v_aws_byte_cursor_read_~#slice~0#1.base_13|))) (not (= (_ bv0 1) (bvneg (select (store .cse1 |v_aws_byte_cursor_read_~#slice~0#1.base_13| (_ bv1 1)) |v_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base_20|))))))) is different from false