./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/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_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/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_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/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 d8feb785efb60d35f9204dc33a12e80ea59efcec5de2b7c2ff320ef29197b0bd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:46:37,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:46:37,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:46:37,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:46:37,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:46:37,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:46:37,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:46:37,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:46:37,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:46:37,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:46:37,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:46:37,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:46:37,102 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:46:37,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:46:37,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:46:37,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:46:37,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:46:37,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:46:37,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:46:37,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:46:37,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:46:37,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:46:37,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:46:37,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:46:37,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:46:37,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:46:37,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:46:37,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:46:37,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:46:37,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:46:37,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:46:37,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:46:37,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:46:37,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:46:37,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:46:37,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:46:37,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:46:37,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:46:37,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:46:37,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:46:37,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:46:37,151 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:46:37,177 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:46:37,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:46:37,178 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:46:37,178 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:46:37,178 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:46:37,179 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:46:37,179 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:46:37,179 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:46:37,179 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:46:37,179 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:46:37,180 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:46:37,180 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:46:37,180 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:46:37,180 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:46:37,180 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:46:37,181 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:46:37,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:46:37,182 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:46:37,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:46:37,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:46:37,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:46:37,182 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:46:37,183 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:46:37,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:46:37,183 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:46:37,183 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:46:37,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:46:37,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:46:37,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:46:37,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:46:37,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:46:37,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:46:37,185 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:46:37,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:46:37,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:46:37,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:46:37,186 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:46:37,186 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_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8feb785efb60d35f9204dc33a12e80ea59efcec5de2b7c2ff320ef29197b0bd [2021-11-12 23:46:37,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:46:37,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:46:37,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:46:37,457 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:46:37,461 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:46:37,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i [2021-11-12 23:46:37,549 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/data/b03641d22/4e44cdd5ed7a4927ad71a7cd5372c3f2/FLAG052a6bec5 [2021-11-12 23:46:38,346 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:46:38,347 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i [2021-11-12 23:46:38,407 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/data/b03641d22/4e44cdd5ed7a4927ad71a7cd5372c3f2/FLAG052a6bec5 [2021-11-12 23:46:38,881 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/data/b03641d22/4e44cdd5ed7a4927ad71a7cd5372c3f2 [2021-11-12 23:46:38,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:46:38,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:46:38,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:46:38,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:46:38,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:46:38,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:46:38" (1/1) ... [2021-11-12 23:46:38,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1449ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:38, skipping insertion in model container [2021-11-12 23:46:38,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:46:38" (1/1) ... [2021-11-12 23:46:38,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:46:39,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:46:39,354 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_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4499,4512] [2021-11-12 23:46:39,361 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_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4559,4572] [2021-11-12 23:46:39,386 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:46:39,392 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:46:40,349 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:40,350 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:40,350 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:40,351 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:40,353 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:40,370 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:40,371 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:40,373 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:40,374 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:40,884 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:46:40,887 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:46:40,889 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:46:40,891 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:46:40,899 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:46:40,902 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:46:40,904 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:46:40,906 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:46:40,912 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:46:40,913 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:46:41,185 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:46:41,274 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:41,274 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:41,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:46:41,425 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:46:41,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5e1996d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:41, skipping insertion in model container [2021-11-12 23:46:41,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:46:41,426 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:46:41,428 INFO L158 Benchmark]: Toolchain (without parser) took 2538.48ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 47.7MB in the beginning and 56.4MB in the end (delta: -8.7MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2021-11-12 23:46:41,428 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory was 65.7MB in the beginning and 65.6MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:46:41,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2534.31ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 47.5MB in the beginning and 56.4MB in the end (delta: -9.0MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2021-11-12 23:46:41,431 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory was 65.7MB in the beginning and 65.6MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2534.31ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 47.5MB in the beginning and 56.4MB in the end (delta: -9.0MB). Peak memory consumption was 14.8MB. 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_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/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_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/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_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/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 d8feb785efb60d35f9204dc33a12e80ea59efcec5de2b7c2ff320ef29197b0bd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:46:43,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:46:43,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:46:43,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:46:43,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:46:43,862 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:46:43,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:46:43,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:46:43,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:46:43,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:46:43,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:46:43,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:46:43,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:46:43,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:46:43,895 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:46:43,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:46:43,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:46:43,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:46:43,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:46:43,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:46:43,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:46:43,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:46:43,921 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:46:43,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:46:43,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:46:43,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:46:43,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:46:43,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:46:43,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:46:43,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:46:43,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:46:43,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:46:43,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:46:43,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:46:43,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:46:43,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:46:43,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:46:43,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:46:43,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:46:43,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:46:43,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:46:43,955 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:46:44,001 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:46:44,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:46:44,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:46:44,003 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:46:44,003 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:46:44,003 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:46:44,004 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:46:44,004 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:46:44,004 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:46:44,004 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:46:44,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:46:44,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:46:44,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:46:44,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:46:44,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:46:44,006 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:46:44,007 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:46:44,007 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:46:44,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:46:44,007 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:46:44,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:46:44,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:46:44,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:46:44,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:46:44,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:46:44,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:46:44,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:46:44,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:46:44,009 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:46:44,010 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:46:44,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:46:44,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:46:44,010 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:46:44,011 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_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8feb785efb60d35f9204dc33a12e80ea59efcec5de2b7c2ff320ef29197b0bd [2021-11-12 23:46:44,424 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:46:44,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:46:44,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:46:44,468 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:46:44,469 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:46:44,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i [2021-11-12 23:46:44,540 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/data/afab8cdb5/193214c1e50942a597ca8846177cf100/FLAGbefb4fa44 [2021-11-12 23:46:45,531 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:46:45,532 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i [2021-11-12 23:46:45,589 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/data/afab8cdb5/193214c1e50942a597ca8846177cf100/FLAGbefb4fa44 [2021-11-12 23:46:45,978 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/data/afab8cdb5/193214c1e50942a597ca8846177cf100 [2021-11-12 23:46:45,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:46:45,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:46:45,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:46:45,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:46:45,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:46:45,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:46:45" (1/1) ... [2021-11-12 23:46:45,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@587312c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:45, skipping insertion in model container [2021-11-12 23:46:45,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:46:45" (1/1) ... [2021-11-12 23:46:46,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:46:46,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:46:46,479 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_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4499,4512] [2021-11-12 23:46:46,488 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_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4559,4572] [2021-11-12 23:46:46,523 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:46:46,532 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:46:47,651 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:47,651 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:47,652 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:47,653 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:47,654 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:47,668 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:47,668 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:47,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:47,671 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:48,130 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:46:48,132 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:46:48,133 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:46:48,134 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:46:48,136 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:46:48,137 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:46:48,137 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:46:48,138 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:46:48,139 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:46:48,140 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:46:48,357 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:46:48,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:48,533 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:48,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:46:48,713 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:46:48,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:46:48,793 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_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4499,4512] [2021-11-12 23:46:48,793 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_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4559,4572] [2021-11-12 23:46:48,797 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:46:48,800 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:46:48,850 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:48,850 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:48,851 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:48,851 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:48,852 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:48,858 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:48,858 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:48,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:48,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:48,917 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:46:48,919 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:46:48,920 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:46:48,921 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:46:48,922 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:46:48,922 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:46:48,923 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:46:48,923 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:46:48,924 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:46:48,924 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:46:48,971 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:46:49,056 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:49,056 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:49,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:46:49,187 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:46:49,212 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_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4499,4512] [2021-11-12 23:46:49,213 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_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/sv-benchmarks/c/aws-c-common/aws_string_new_from_c_str_harness.i[4559,4572] [2021-11-12 23:46:49,214 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-12 23:46:49,215 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-12 23:46:49,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:49,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:49,265 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:49,266 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:49,266 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:49,272 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:49,272 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:49,273 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:49,274 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:49,380 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-12 23:46:49,381 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-12 23:46:49,381 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-12 23:46:49,382 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-12 23:46:49,383 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-12 23:46:49,383 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-12 23:46:49,384 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-12 23:46:49,385 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-12 23:46:49,385 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-12 23:46:49,386 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-12 23:46:49,429 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-12 23:46:49,544 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:49,545 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-12 23:46:49,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:46:49,940 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:46:49,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:49 WrapperNode [2021-11-12 23:46:49,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:46:49,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:46:49,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:46:49,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:46:49,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:49" (1/1) ... [2021-11-12 23:46:50,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:49" (1/1) ... [2021-11-12 23:46:50,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:46:50,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:46:50,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:46:50,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:46:50,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:49" (1/1) ... [2021-11-12 23:46:50,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:49" (1/1) ... [2021-11-12 23:46:50,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:49" (1/1) ... [2021-11-12 23:46:50,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:49" (1/1) ... [2021-11-12 23:46:50,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:49" (1/1) ... [2021-11-12 23:46:50,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:49" (1/1) ... [2021-11-12 23:46:50,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:49" (1/1) ... [2021-11-12 23:46:50,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:46:50,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:46:50,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:46:50,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:46:50,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:49" (1/1) ... [2021-11-12 23:46:50,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:46:50,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:46:50,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:46:50,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:46:50,515 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-11-12 23:46:50,515 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-11-12 23:46:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:46:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-11-12 23:46:50,516 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-11-12 23:46:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:46:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:46:50,516 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2021-11-12 23:46:50,518 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2021-11-12 23:46:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2021-11-12 23:46:50,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-12 23:46:50,519 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-12 23:46:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2021-11-12 23:46:50,519 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2021-11-12 23:46:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-12 23:46:50,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-12 23:46:50,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:46:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:46:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-12 23:46:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-12 23:46:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-12 23:46:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-12 23:46:50,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:46:50,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:46:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-11-12 23:46:50,521 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-11-12 23:46:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:46:50,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:46:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-12 23:46:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-12 23:46:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-12 23:46:50,522 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2021-11-12 23:46:50,522 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2021-11-12 23:46:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-12 23:46:50,523 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-12 23:46:50,523 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2021-11-12 23:46:50,523 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2021-11-12 23:46:50,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:46:50,524 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2021-11-12 23:46:50,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2021-11-12 23:46:50,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:46:50,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:46:50,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:46:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_new_from_array [2021-11-12 23:46:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_new_from_array [2021-11-12 23:46:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-11-12 23:46:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-11-12 23:46:50,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2021-11-12 23:46:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2021-11-12 23:46:50,537 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2021-11-12 23:46:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2021-11-12 23:46:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2021-11-12 23:46:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-11-12 23:46:50,538 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-11-12 23:46:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-12 23:46:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-12 23:46:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-12 23:46:50,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-12 23:46:51,365 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !true; [2021-11-12 23:47:05,766 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:47:05,767 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-12 23:47:05,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:47:05 BoogieIcfgContainer [2021-11-12 23:47:05,769 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:47:05,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:47:05,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:47:05,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:47:05,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:46:45" (1/3) ... [2021-11-12 23:47:05,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e09ca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:47:05, skipping insertion in model container [2021-11-12 23:47:05,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:46:49" (2/3) ... [2021-11-12 23:47:05,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e09ca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:47:05, skipping insertion in model container [2021-11-12 23:47:05,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:47:05" (3/3) ... [2021-11-12 23:47:05,786 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_new_from_c_str_harness.i [2021-11-12 23:47:05,790 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:47:05,809 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 23:47:05,881 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:47:05,887 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-12 23:47:05,887 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 23:47:05,911 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 85 states have internal predecessors, (99), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2021-11-12 23:47:05,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-12 23:47:05,922 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:05,923 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:05,923 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:05,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:05,929 INFO L85 PathProgramCache]: Analyzing trace with hash 240365959, now seen corresponding path program 1 times [2021-11-12 23:47:05,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:05,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850514566] [2021-11-12 23:47:05,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:05,954 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:05,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:05,959 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:05,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:47:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:10,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 1837 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 23:47:10,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:10,394 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-12 23:47:10,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:10,650 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-12 23:47:10,651 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:10,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850514566] [2021-11-12 23:47:10,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1850514566] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:47:10,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:47:10,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-12 23:47:10,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029176172] [2021-11-12 23:47:10,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:10,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 23:47:10,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:10,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 23:47:10,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:47:10,689 INFO L87 Difference]: Start difference. First operand has 135 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 85 states have internal predecessors, (99), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 23:47:10,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:10,728 INFO L93 Difference]: Finished difference Result 264 states and 347 transitions. [2021-11-12 23:47:10,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 23:47:10,731 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 73 [2021-11-12 23:47:10,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:10,753 INFO L225 Difference]: With dead ends: 264 [2021-11-12 23:47:10,753 INFO L226 Difference]: Without dead ends: 129 [2021-11-12 23:47:10,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 23:47:10,763 INFO L933 BasicCegarLoop]: 163 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, 163 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.08ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:10,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 2.08ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 23:47:10,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-12 23:47:10,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-11-12 23:47:10,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 79 states have (on average 1.1518987341772151) internal successors, (91), 80 states have internal predecessors, (91), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-11-12 23:47:10,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 158 transitions. [2021-11-12 23:47:10,825 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 158 transitions. Word has length 73 [2021-11-12 23:47:10,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:10,826 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 158 transitions. [2021-11-12 23:47:10,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-12 23:47:10,827 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 158 transitions. [2021-11-12 23:47:10,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-12 23:47:10,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:10,830 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:10,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-12 23:47:11,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:11,048 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:11,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:11,049 INFO L85 PathProgramCache]: Analyzing trace with hash -51091837, now seen corresponding path program 1 times [2021-11-12 23:47:11,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:11,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270062968] [2021-11-12 23:47:11,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:11,059 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:11,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:11,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:11,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:47:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:15,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 1837 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:47:15,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:15,557 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-12 23:47:15,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:15,964 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-12 23:47:15,965 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:15,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270062968] [2021-11-12 23:47:15,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270062968] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:47:15,965 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:47:15,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-12 23:47:15,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512348035] [2021-11-12 23:47:15,966 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:15,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:47:15,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:15,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:47:15,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:47:15,969 INFO L87 Difference]: Start difference. First operand 129 states and 158 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-12 23:47:16,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:16,095 INFO L93 Difference]: Finished difference Result 177 states and 215 transitions. [2021-11-12 23:47:16,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:47:16,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) Word has length 73 [2021-11-12 23:47:16,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:16,100 INFO L225 Difference]: With dead ends: 177 [2021-11-12 23:47:16,100 INFO L226 Difference]: Without dead ends: 133 [2021-11-12 23:47:16,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:47:16,103 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 2 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.82ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.52ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:16,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 620 Invalid, 11 Unknown, 0 Unchecked, 8.82ms Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 63.52ms Time] [2021-11-12 23:47:16,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-12 23:47:16,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-11-12 23:47:16,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 82 states have (on average 1.146341463414634) internal successors, (94), 83 states have internal predecessors, (94), 34 states have call successors, (34), 15 states have call predecessors, (34), 16 states have return successors, (34), 34 states have call predecessors, (34), 33 states have call successors, (34) [2021-11-12 23:47:16,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 162 transitions. [2021-11-12 23:47:16,124 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 162 transitions. Word has length 73 [2021-11-12 23:47:16,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:16,125 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 162 transitions. [2021-11-12 23:47:16,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2021-11-12 23:47:16,125 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 162 transitions. [2021-11-12 23:47:16,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-12 23:47:16,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:16,128 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:16,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:16,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:16,329 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:16,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:16,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1310225305, now seen corresponding path program 1 times [2021-11-12 23:47:16,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:16,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715523796] [2021-11-12 23:47:16,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:16,338 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:16,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:16,339 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:16,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:47:20,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:20,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 1844 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:47:20,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:20,709 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-12 23:47:20,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:21,097 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-12 23:47:21,097 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:21,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715523796] [2021-11-12 23:47:21,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715523796] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:47:21,097 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:47:21,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-12 23:47:21,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144733285] [2021-11-12 23:47:21,098 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:21,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:47:21,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:21,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:47:21,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:47:21,100 INFO L87 Difference]: Start difference. First operand 133 states and 162 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-12 23:47:21,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:21,251 INFO L93 Difference]: Finished difference Result 183 states and 220 transitions. [2021-11-12 23:47:21,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-12 23:47:21,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 79 [2021-11-12 23:47:21,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:21,257 INFO L225 Difference]: With dead ends: 183 [2021-11-12 23:47:21,257 INFO L226 Difference]: Without dead ends: 144 [2021-11-12 23:47:21,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:47:21,259 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 9 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 79.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.00ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88.43ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:21,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 767 Invalid, 22 Unknown, 0 Unchecked, 6.00ms Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 88.43ms Time] [2021-11-12 23:47:21,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-12 23:47:21,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 138. [2021-11-12 23:47:21,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 86 states have (on average 1.1395348837209303) internal successors, (98), 87 states have internal predecessors, (98), 34 states have call successors, (34), 15 states have call predecessors, (34), 17 states have return successors, (35), 35 states have call predecessors, (35), 33 states have call successors, (35) [2021-11-12 23:47:21,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 167 transitions. [2021-11-12 23:47:21,279 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 167 transitions. Word has length 79 [2021-11-12 23:47:21,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:21,279 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 167 transitions. [2021-11-12 23:47:21,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2021-11-12 23:47:21,280 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 167 transitions. [2021-11-12 23:47:21,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-12 23:47:21,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:21,282 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:21,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-12 23:47:21,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:21,489 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:21,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:21,490 INFO L85 PathProgramCache]: Analyzing trace with hash 522363280, now seen corresponding path program 1 times [2021-11-12 23:47:21,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:21,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220043617] [2021-11-12 23:47:21,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:21,494 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:21,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:21,495 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:21,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:47:25,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:25,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1850 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 23:47:25,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:26,016 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-12 23:47:26,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:26,566 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-12 23:47:26,567 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:26,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220043617] [2021-11-12 23:47:26,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1220043617] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:47:26,567 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:47:26,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 15 [2021-11-12 23:47:26,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470138900] [2021-11-12 23:47:26,567 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:26,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-12 23:47:26,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:26,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-12 23:47:26,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2021-11-12 23:47:26,569 INFO L87 Difference]: Start difference. First operand 138 states and 167 transitions. Second operand has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 12 states have internal predecessors, (43), 5 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-12 23:47:27,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:27,319 INFO L93 Difference]: Finished difference Result 144 states and 172 transitions. [2021-11-12 23:47:27,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-12 23:47:27,319 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 12 states have internal predecessors, (43), 5 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 81 [2021-11-12 23:47:27,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:27,322 INFO L225 Difference]: With dead ends: 144 [2021-11-12 23:47:27,322 INFO L226 Difference]: Without dead ends: 129 [2021-11-12 23:47:27,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:47:27,324 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 57 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 384.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1696 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.08ms SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 436.15ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:27,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 1696 Invalid, 134 Unknown, 0 Unchecked, 11.08ms Time], IncrementalHoareTripleChecker [31 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 436.15ms Time] [2021-11-12 23:47:27,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-12 23:47:27,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 125. [2021-11-12 23:47:27,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 76 states have (on average 1.118421052631579) internal successors, (85), 77 states have internal predecessors, (85), 33 states have call successors, (33), 15 states have call predecessors, (33), 15 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-11-12 23:47:27,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 150 transitions. [2021-11-12 23:47:27,340 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 150 transitions. Word has length 81 [2021-11-12 23:47:27,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:27,341 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 150 transitions. [2021-11-12 23:47:27,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 12 states have internal predecessors, (43), 5 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2021-11-12 23:47:27,341 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 150 transitions. [2021-11-12 23:47:27,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-12 23:47:27,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:27,344 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:27,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:27,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:27,558 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:27,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:27,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1279492750, now seen corresponding path program 1 times [2021-11-12 23:47:27,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:27,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [896457357] [2021-11-12 23:47:27,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:27,565 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:27,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:27,566 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:27,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:47:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:31,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 1945 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:47:31,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:32,203 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-12 23:47:32,204 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:32,818 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-12 23:47:32,819 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:32,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [896457357] [2021-11-12 23:47:32,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [896457357] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:47:32,819 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:47:32,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-12 23:47:32,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163511993] [2021-11-12 23:47:32,820 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:32,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:47:32,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:32,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:47:32,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:47:32,821 INFO L87 Difference]: Start difference. First operand 125 states and 150 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 23:47:32,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:32,902 INFO L93 Difference]: Finished difference Result 188 states and 224 transitions. [2021-11-12 23:47:32,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:47:32,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 122 [2021-11-12 23:47:32,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:32,907 INFO L225 Difference]: With dead ends: 188 [2021-11-12 23:47:32,907 INFO L226 Difference]: Without dead ends: 133 [2021-11-12 23:47:32,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:47:32,908 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 4 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.19ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.48ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:32,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 725 Invalid, 22 Unknown, 0 Unchecked, 3.19ms Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 67.48ms Time] [2021-11-12 23:47:32,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-12 23:47:32,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2021-11-12 23:47:32,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 80 states have (on average 1.1125) internal successors, (89), 81 states have internal predecessors, (89), 33 states have call successors, (33), 15 states have call predecessors, (33), 16 states have return successors, (33), 33 states have call predecessors, (33), 32 states have call successors, (33) [2021-11-12 23:47:32,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 155 transitions. [2021-11-12 23:47:32,923 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 155 transitions. Word has length 122 [2021-11-12 23:47:32,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:32,924 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 155 transitions. [2021-11-12 23:47:32,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-12 23:47:32,924 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 155 transitions. [2021-11-12 23:47:32,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-12 23:47:32,927 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:32,928 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:32,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:33,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:33,145 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:33,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:33,147 INFO L85 PathProgramCache]: Analyzing trace with hash -709927470, now seen corresponding path program 1 times [2021-11-12 23:47:33,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:33,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1721868990] [2021-11-12 23:47:33,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:33,159 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:33,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:33,160 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:33,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:47:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:37,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 1957 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-12 23:47:37,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:37,999 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-12 23:47:37,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:38,723 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-12 23:47:38,723 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:47:38,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1721868990] [2021-11-12 23:47:38,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1721868990] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:47:38,723 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:47:38,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 9 [2021-11-12 23:47:38,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220075345] [2021-11-12 23:47:38,724 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:47:38,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 23:47:38,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:47:38,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 23:47:38,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:47:38,726 INFO L87 Difference]: Start difference. First operand 130 states and 155 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 7 states have internal predecessors, (71), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-12 23:47:38,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:47:38,988 INFO L93 Difference]: Finished difference Result 185 states and 220 transitions. [2021-11-12 23:47:38,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 23:47:38,989 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 7 states have internal predecessors, (71), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) Word has length 128 [2021-11-12 23:47:38,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:47:38,992 INFO L225 Difference]: With dead ends: 185 [2021-11-12 23:47:38,992 INFO L226 Difference]: Without dead ends: 123 [2021-11-12 23:47:38,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:47:38,993 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 2 mSDsluCounter, 1007 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 175.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.21ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 206.10ms IncrementalHoareTripleChecker+Time [2021-11-12 23:47:38,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1152 Invalid, 45 Unknown, 0 Unchecked, 4.21ms Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 206.10ms Time] [2021-11-12 23:47:38,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-11-12 23:47:39,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2021-11-12 23:47:39,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 75 states have (on average 1.0933333333333333) internal successors, (82), 76 states have internal predecessors, (82), 32 states have call successors, (32), 15 states have call predecessors, (32), 15 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-12 23:47:39,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2021-11-12 23:47:39,005 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 128 [2021-11-12 23:47:39,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:47:39,006 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2021-11-12 23:47:39,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 7 states have internal predecessors, (71), 3 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (23), 5 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-12 23:47:39,006 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2021-11-12 23:47:39,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-12 23:47:39,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:47:39,009 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:47:39,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:47:39,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:47:39,221 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 23:47:39,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:47:39,222 INFO L85 PathProgramCache]: Analyzing trace with hash 350917961, now seen corresponding path program 1 times [2021-11-12 23:47:39,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:47:39,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573931188] [2021-11-12 23:47:39,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:47:39,225 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:47:39,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:47:39,226 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:47:39,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5dc34e81-9979-4dc6-a77d-e66c6dff3f37/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:47:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:47:43,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 1967 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-12 23:47:43,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:47:45,141 INFO L354 Elim1Store]: treesize reduction 1099, result has 7.0 percent of original size [2021-11-12 23:47:45,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 70 treesize of output 95 [2021-11-12 23:47:46,201 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-12 23:47:46,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 138 treesize of output 74 [2021-11-12 23:47:47,861 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-11-12 23:47:47,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:47:51,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 495 treesize of output 481