./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:32:59,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:32:59,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:32:59,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:32:59,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:32:59,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:32:59,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:32:59,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:32:59,786 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:32:59,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:32:59,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:32:59,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:32:59,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:32:59,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:32:59,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:32:59,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:32:59,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:32:59,806 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:32:59,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:32:59,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:32:59,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:32:59,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:32:59,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:32:59,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:32:59,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:32:59,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:32:59,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:32:59,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:32:59,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:32:59,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:32:59,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:32:59,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:32:59,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:32:59,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:32:59,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:32:59,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:32:59,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:32:59,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:32:59,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:32:59,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:32:59,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:32:59,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 22:32:59,888 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:32:59,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:32:59,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:32:59,890 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:32:59,890 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:32:59,890 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:32:59,890 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:32:59,891 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:32:59,891 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:32:59,891 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:32:59,899 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:32:59,899 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:32:59,899 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:32:59,900 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:32:59,900 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:32:59,900 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:32:59,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:32:59,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:32:59,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:32:59,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:32:59,902 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:32:59,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:32:59,903 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:32:59,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:32:59,903 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:32:59,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:32:59,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:32:59,904 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:32:59,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:32:59,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:32:59,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:32:59,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:32:59,907 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:32:59,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:32:59,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:32:59,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:32:59,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:32:59,908 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_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 [2021-11-12 22:33:00,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:33:00,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:33:00,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:33:00,213 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:33:00,214 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:33:00,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2021-11-12 22:33:00,299 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/data/6313c31db/b36df27d641346f3b4c9c858cf3a60dc/FLAG6ccac0159 [2021-11-12 22:33:01,057 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:33:01,058 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2021-11-12 22:33:01,092 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/data/6313c31db/b36df27d641346f3b4c9c858cf3a60dc/FLAG6ccac0159 [2021-11-12 22:33:01,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/data/6313c31db/b36df27d641346f3b4c9c858cf3a60dc [2021-11-12 22:33:01,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:33:01,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:33:01,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:33:01,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:33:01,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:33:01,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:33:01" (1/1) ... [2021-11-12 22:33:01,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f9b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:33:01, skipping insertion in model container [2021-11-12 22:33:01,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:33:01" (1/1) ... [2021-11-12 22:33:01,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:33:01,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:33:01,559 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2021-11-12 22:33:01,565 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2021-11-12 22:33:01,586 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:33:01,591 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:33:02,579 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:33:02,642 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:02,643 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:02,643 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:02,644 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:02,645 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:02,658 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:02,658 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:02,661 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:02,661 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:02,664 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:02,665 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:02,665 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:02,666 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:03,005 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:33:03,007 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:33:03,008 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:33:03,009 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:33:03,010 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:33:03,011 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:33:03,012 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:33:03,013 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:33:03,013 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:33:03,014 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:33:03,159 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:03,166 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:03,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:33:03,245 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 22:33:03,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@46a815b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:33:03, skipping insertion in model container [2021-11-12 22:33:03,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:33:03,246 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 22:33:03,248 INFO L158 Benchmark]: Toolchain (without parser) took 2105.52ms. Allocated memory is still 127.9MB. Free memory was 87.6MB in the beginning and 64.1MB in the end (delta: 23.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-12 22:33:03,249 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 81.8MB. Free memory was 40.6MB in the beginning and 40.6MB in the end (delta: 46.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:33:03,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2102.89ms. Allocated memory is still 127.9MB. Free memory was 87.3MB in the beginning and 64.1MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-12 22:33:03,252 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 81.8MB. Free memory was 40.6MB in the beginning and 40.6MB in the end (delta: 46.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2102.89ms. Allocated memory is still 127.9MB. Free memory was 87.3MB in the beginning and 64.1MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2886]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:33:05,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:33:05,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:33:05,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:33:05,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:33:05,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:33:05,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:33:05,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:33:05,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:33:05,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:33:05,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:33:05,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:33:05,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:33:05,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:33:05,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:33:05,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:33:05,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:33:05,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:33:05,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:33:05,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:33:05,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:33:05,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:33:05,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:33:05,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:33:05,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:33:05,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:33:05,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:33:05,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:33:05,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:33:05,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:33:05,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:33:05,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:33:05,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:33:05,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:33:05,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:33:05,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:33:05,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:33:05,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:33:05,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:33:05,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:33:05,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:33:05,621 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 22:33:05,670 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:33:05,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:33:05,671 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:33:05,672 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:33:05,672 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:33:05,672 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:33:05,673 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:33:05,673 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:33:05,674 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:33:05,674 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:33:05,676 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:33:05,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:33:05,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:33:05,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:33:05,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:33:05,678 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:33:05,678 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:33:05,678 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:33:05,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:33:05,679 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:33:05,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:33:05,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:33:05,679 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:33:05,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:33:05,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:33:05,680 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:33:05,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:33:05,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:33:05,681 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:33:05,681 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:33:05,681 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:33:05,682 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:33:05,682 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:33:05,682 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_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 971edb75bb0f677639f0c3e5b019bf9afe7575a35e63ddba584727b568db50c6 [2021-11-12 22:33:06,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:33:06,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:33:06,061 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:33:06,062 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:33:06,063 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:33:06,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2021-11-12 22:33:06,141 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/data/8ec56fcc1/1cfedc100e1248309b220f1373446aa0/FLAGb2151fa90 [2021-11-12 22:33:07,044 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:33:07,045 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i [2021-11-12 22:33:07,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/data/8ec56fcc1/1cfedc100e1248309b220f1373446aa0/FLAGb2151fa90 [2021-11-12 22:33:07,603 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/data/8ec56fcc1/1cfedc100e1248309b220f1373446aa0 [2021-11-12 22:33:07,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:33:07,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:33:07,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:33:07,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:33:07,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:33:07,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:33:07" (1/1) ... [2021-11-12 22:33:07,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3999224a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:33:07, skipping insertion in model container [2021-11-12 22:33:07,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:33:07" (1/1) ... [2021-11-12 22:33:07,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:33:07,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:33:08,125 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2021-11-12 22:33:08,130 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2021-11-12 22:33:08,155 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:33:08,162 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:33:09,076 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:33:09,150 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:09,151 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:09,151 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:09,152 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:09,153 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:09,166 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:09,167 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:09,169 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:09,169 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:09,171 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:09,172 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:09,173 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:09,173 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:09,637 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:33:09,639 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:33:09,640 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:33:09,641 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:33:09,643 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:33:09,644 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:33:09,644 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:33:09,645 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:33:09,646 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:33:09,646 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:33:09,820 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:09,827 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:09,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:33:09,926 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 22:33:09,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:33:09,981 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2021-11-12 22:33:09,981 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2021-11-12 22:33:09,983 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:33:09,984 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:33:10,017 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:33:10,033 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,034 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,034 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,035 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,035 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,042 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,043 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,044 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,044 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,045 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,046 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,047 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,047 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,094 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:33:10,095 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:33:10,096 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:33:10,096 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:33:10,097 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:33:10,098 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:33:10,098 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:33:10,099 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:33:10,099 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:33:10,100 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:33:10,130 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,148 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:33:10,225 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:33:10,238 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4498,4511] [2021-11-12 22:33:10,239 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/sv-benchmarks/c/aws-c-common/aws_array_list_pop_front_harness.i[4558,4571] [2021-11-12 22:33:10,240 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 22:33:10,241 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 22:33:10,267 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 22:33:10,278 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,279 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,279 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,280 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,280 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,286 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,287 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,287 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,288 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,342 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 22:33:10,343 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 22:33:10,344 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 22:33:10,344 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 22:33:10,345 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 22:33:10,346 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 22:33:10,346 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 22:33:10,346 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 22:33:10,347 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 22:33:10,347 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 22:33:10,370 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 22:33:10,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:33:10,765 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:33:10,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:33:10 WrapperNode [2021-11-12 22:33:10,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:33:10,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:33:10,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:33:10,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:33:10,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:33:10" (1/1) ... [2021-11-12 22:33:10,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:33:10" (1/1) ... [2021-11-12 22:33:11,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:33:11,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:33:11,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:33:11,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:33:11,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:33:10" (1/1) ... [2021-11-12 22:33:11,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:33:10" (1/1) ... [2021-11-12 22:33:11,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:33:10" (1/1) ... [2021-11-12 22:33:11,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:33:10" (1/1) ... [2021-11-12 22:33:11,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:33:10" (1/1) ... [2021-11-12 22:33:11,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:33:10" (1/1) ... [2021-11-12 22:33:11,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:33:10" (1/1) ... [2021-11-12 22:33:11,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:33:11,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:33:11,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:33:11,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:33:11,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:33:10" (1/1) ... [2021-11-12 22:33:11,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:33:11,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:33:11,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:33:11,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:33:11,209 INFO L130 BoogieDeclarations]: Found specification of procedure memmove_impl [2021-11-12 22:33:11,210 INFO L138 BoogieDeclarations]: Found implementation of procedure memmove_impl [2021-11-12 22:33:11,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:33:11,210 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2021-11-12 22:33:11,210 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2021-11-12 22:33:11,210 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2021-11-12 22:33:11,211 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2021-11-12 22:33:11,211 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 22:33:11,211 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 22:33:11,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:33:11,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 22:33:11,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 22:33:11,212 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-12 22:33:11,212 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-12 22:33:11,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 22:33:11,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 22:33:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 22:33:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 22:33:11,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:33:11,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:33:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 22:33:11,214 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 22:33:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 22:33:11,214 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2021-11-12 22:33:11,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2021-11-12 22:33:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 22:33:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2021-11-12 22:33:11,219 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2021-11-12 22:33:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2021-11-12 22:33:11,219 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2021-11-12 22:33:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 22:33:11,220 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 22:33:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:33:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-12 22:33:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 22:33:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 22:33:11,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 22:33:11,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 22:33:11,227 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-12 22:33:11,227 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-12 22:33:11,227 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2021-11-12 22:33:11,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2021-11-12 22:33:11,227 INFO L130 BoogieDeclarations]: Found specification of procedure my_memmove [2021-11-12 22:33:11,228 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memmove [2021-11-12 22:33:11,228 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_pop_front [2021-11-12 22:33:11,228 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_pop_front [2021-11-12 22:33:11,228 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2021-11-12 22:33:11,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2021-11-12 22:33:24,452 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:33:24,452 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-12 22:33:24,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:33:24 BoogieIcfgContainer [2021-11-12 22:33:24,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:33:24,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:33:24,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:33:24,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:33:24,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:33:07" (1/3) ... [2021-11-12 22:33:24,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111c51b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:33:24, skipping insertion in model container [2021-11-12 22:33:24,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:33:10" (2/3) ... [2021-11-12 22:33:24,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111c51b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:33:24, skipping insertion in model container [2021-11-12 22:33:24,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:33:24" (3/3) ... [2021-11-12 22:33:24,463 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_pop_front_harness.i [2021-11-12 22:33:24,469 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:33:24,470 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:33:24,519 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:33:24,525 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 22:33:24,525 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:33:24,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 184 states, 109 states have (on average 1.201834862385321) internal successors, (131), 110 states have internal predecessors, (131), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2021-11-12 22:33:24,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-12 22:33:24,556 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:33:24,557 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1] [2021-11-12 22:33:24,558 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:33:24,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:33:24,563 INFO L85 PathProgramCache]: Analyzing trace with hash 642443003, now seen corresponding path program 1 times [2021-11-12 22:33:24,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:33:24,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426636982] [2021-11-12 22:33:24,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:33:24,585 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:33:24,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:33:24,588 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:33:24,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:33:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:33:28,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 1696 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:33:28,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:33:28,957 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-12 22:33:28,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:33:29,208 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-12 22:33:29,209 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:33:29,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426636982] [2021-11-12 22:33:29,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426636982] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:33:29,210 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:33:29,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:33:29,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723129116] [2021-11-12 22:33:29,213 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:33:29,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:33:29,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:33:29,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:33:29,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:33:29,250 INFO L87 Difference]: Start difference. First operand has 184 states, 109 states have (on average 1.201834862385321) internal successors, (131), 110 states have internal predecessors, (131), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-12 22:33:29,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:33:29,304 INFO L93 Difference]: Finished difference Result 361 states and 517 transitions. [2021-11-12 22:33:29,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:33:29,306 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 84 [2021-11-12 22:33:29,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:33:29,318 INFO L225 Difference]: With dead ends: 361 [2021-11-12 22:33:29,318 INFO L226 Difference]: Without dead ends: 179 [2021-11-12 22:33:29,325 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 [2021-11-12 22:33:29,329 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.90ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:33:29,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 2.90ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:33:29,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-11-12 22:33:29,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2021-11-12 22:33:29,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 105 states have (on average 1.1904761904761905) internal successors, (125), 106 states have internal predecessors, (125), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2021-11-12 22:33:29,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 238 transitions. [2021-11-12 22:33:29,417 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 238 transitions. Word has length 84 [2021-11-12 22:33:29,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:33:29,417 INFO L470 AbstractCegarLoop]: Abstraction has 179 states and 238 transitions. [2021-11-12 22:33:29,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-12 22:33:29,418 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 238 transitions. [2021-11-12 22:33:29,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-12 22:33:29,431 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:33:29,431 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1] [2021-11-12 22:33:29,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 22:33:29,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:33:29,633 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:33:29,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:33:29,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1020905353, now seen corresponding path program 1 times [2021-11-12 22:33:29,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:33:29,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234366142] [2021-11-12 22:33:29,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:33:29,642 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:33:29,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:33:29,643 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:33:29,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:33:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:33:33,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 1696 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 22:33:33,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:33:34,161 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-12 22:33:34,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:33:34,599 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-12 22:33:34,599 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:33:34,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234366142] [2021-11-12 22:33:34,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234366142] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:33:34,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:33:34,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-11-12 22:33:34,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473393062] [2021-11-12 22:33:34,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:33:34,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 22:33:34,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:33:34,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 22:33:34,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 22:33:34,603 INFO L87 Difference]: Start difference. First operand 179 states and 238 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-12 22:33:35,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:33:35,342 INFO L93 Difference]: Finished difference Result 323 states and 444 transitions. [2021-11-12 22:33:35,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 22:33:35,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 84 [2021-11-12 22:33:35,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:33:35,348 INFO L225 Difference]: With dead ends: 323 [2021-11-12 22:33:35,348 INFO L226 Difference]: Without dead ends: 181 [2021-11-12 22:33:35,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-12 22:33:35,353 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 38 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 545.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.59ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 654.01ms IncrementalHoareTripleChecker+Time [2021-11-12 22:33:35,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 778 Invalid, 114 Unknown, 0 Unchecked, 15.59ms Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 654.01ms Time] [2021-11-12 22:33:35,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-12 22:33:35,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-11-12 22:33:35,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 106 states have (on average 1.1886792452830188) internal successors, (126), 108 states have internal predecessors, (126), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (66), 56 states have call predecessors, (66), 56 states have call successors, (66) [2021-11-12 22:33:35,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 249 transitions. [2021-11-12 22:33:35,381 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 249 transitions. Word has length 84 [2021-11-12 22:33:35,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:33:35,387 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 249 transitions. [2021-11-12 22:33:35,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-12 22:33:35,388 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 249 transitions. [2021-11-12 22:33:35,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-12 22:33:35,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:33:35,390 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:33:35,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-12 22:33:35,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:33:35,591 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:33:35,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:33:35,591 INFO L85 PathProgramCache]: Analyzing trace with hash 327548161, now seen corresponding path program 1 times [2021-11-12 22:33:35,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:33:35,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [272727356] [2021-11-12 22:33:35,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:33:35,595 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:33:35,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:33:35,596 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:33:35,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 22:33:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:33:39,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 22:33:39,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:33:40,181 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-12 22:33:40,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:33:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2021-11-12 22:33:40,660 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:33:40,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [272727356] [2021-11-12 22:33:40,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [272727356] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:33:40,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:33:40,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2021-11-12 22:33:40,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697597126] [2021-11-12 22:33:40,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:33:40,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 22:33:40,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:33:40,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 22:33:40,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-12 22:33:40,663 INFO L87 Difference]: Start difference. First operand 181 states and 249 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-12 22:33:41,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:33:41,609 INFO L93 Difference]: Finished difference Result 315 states and 438 transitions. [2021-11-12 22:33:41,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 22:33:41,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 99 [2021-11-12 22:33:41,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:33:41,612 INFO L225 Difference]: With dead ends: 315 [2021-11-12 22:33:41,613 INFO L226 Difference]: Without dead ends: 181 [2021-11-12 22:33:41,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-12 22:33:41,617 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 80 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 733.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.24ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 847.70ms IncrementalHoareTripleChecker+Time [2021-11-12 22:33:41,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 1116 Invalid, 216 Unknown, 0 Unchecked, 9.24ms Time], IncrementalHoareTripleChecker [54 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 847.70ms Time] [2021-11-12 22:33:41,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-12 22:33:41,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2021-11-12 22:33:41,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 106 states have (on average 1.1886792452830188) internal successors, (126), 108 states have internal predecessors, (126), 57 states have call successors, (57), 16 states have call predecessors, (57), 17 states have return successors, (63), 56 states have call predecessors, (63), 56 states have call successors, (63) [2021-11-12 22:33:41,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 246 transitions. [2021-11-12 22:33:41,648 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 246 transitions. Word has length 99 [2021-11-12 22:33:41,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:33:41,649 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 246 transitions. [2021-11-12 22:33:41,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2021-11-12 22:33:41,653 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 246 transitions. [2021-11-12 22:33:41,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-12 22:33:41,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:33:41,661 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:33:41,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:33:41,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:33:41,876 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:33:41,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:33:41,876 INFO L85 PathProgramCache]: Analyzing trace with hash -316276691, now seen corresponding path program 2 times [2021-11-12 22:33:41,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:33:41,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674445831] [2021-11-12 22:33:41,880 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-12 22:33:41,880 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:33:41,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:33:41,881 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:33:41,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5542aed-03f6-4b17-9e0f-e59e9cb2ff5b/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process