./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 20:12:08,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 20:12:08,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 20:12:09,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 20:12:09,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 20:12:09,026 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 20:12:09,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 20:12:09,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 20:12:09,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 20:12:09,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 20:12:09,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 20:12:09,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 20:12:09,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 20:12:09,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 20:12:09,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 20:12:09,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 20:12:09,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 20:12:09,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 20:12:09,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 20:12:09,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 20:12:09,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 20:12:09,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 20:12:09,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 20:12:09,051 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 20:12:09,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 20:12:09,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 20:12:09,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 20:12:09,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 20:12:09,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 20:12:09,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 20:12:09,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 20:12:09,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 20:12:09,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 20:12:09,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 20:12:09,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 20:12:09,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 20:12:09,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 20:12:09,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 20:12:09,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 20:12:09,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 20:12:09,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 20:12:09,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 20:12:09,085 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 20:12:09,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 20:12:09,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 20:12:09,086 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 20:12:09,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 20:12:09,086 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 20:12:09,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 20:12:09,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 20:12:09,087 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 20:12:09,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 20:12:09,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 20:12:09,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 20:12:09,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 20:12:09,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 20:12:09,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 20:12:09,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 20:12:09,088 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 20:12:09,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 20:12:09,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 20:12:09,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 20:12:09,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 20:12:09,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:12:09,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 20:12:09,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 20:12:09,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 20:12:09,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 20:12:09,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 20:12:09,090 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 20:12:09,090 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 20:12:09,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 20:12:09,090 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 20:12:09,090 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66fb9bfec5c458b51d86deb6748dd65f162e7ac6a772af5f3fec59d101a18d8d [2021-12-06 20:12:09,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 20:12:09,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 20:12:09,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 20:12:09,303 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 20:12:09,303 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 20:12:09,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2021-12-06 20:12:09,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/data/ae8e5f014/8de444f3524b4b1f9ad3880c706f4260/FLAG23b6d4960 [2021-12-06 20:12:09,947 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 20:12:09,947 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i [2021-12-06 20:12:09,977 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/data/ae8e5f014/8de444f3524b4b1f9ad3880c706f4260/FLAG23b6d4960 [2021-12-06 20:12:10,378 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/data/ae8e5f014/8de444f3524b4b1f9ad3880c706f4260 [2021-12-06 20:12:10,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 20:12:10,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 20:12:10,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 20:12:10,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 20:12:10,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 20:12:10,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:12:10" (1/1) ... [2021-12-06 20:12:10,386 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25de15b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:12:10, skipping insertion in model container [2021-12-06 20:12:10,386 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 08:12:10" (1/1) ... [2021-12-06 20:12:10,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 20:12:10,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 20:12:10,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4492,4505] [2021-12-06 20:12:10,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4552,4565] [2021-12-06 20:12:11,268 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,269 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,269 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,270 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,271 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,281 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,282 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,283 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,284 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,621 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-06 20:12:11,622 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-06 20:12:11,623 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-06 20:12:11,623 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-06 20:12:11,624 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-06 20:12:11,625 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-06 20:12:11,625 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-06 20:12:11,626 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-06 20:12:11,626 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-06 20:12:11,627 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-06 20:12:11,767 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-06 20:12:11,825 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,825 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:12:11,925 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 20:12:11,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4492,4505] [2021-12-06 20:12:11,935 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/sv-benchmarks/c/aws-c-common/aws_string_compare_harness.i[4552,4565] [2021-12-06 20:12:11,959 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,959 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,959 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,959 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,960 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,964 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,964 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,965 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:11,965 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:12,000 WARN L610 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-12-06 20:12:12,000 WARN L610 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-12-06 20:12:12,001 WARN L610 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-12-06 20:12:12,002 WARN L610 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-12-06 20:12:12,003 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-12-06 20:12:12,003 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-12-06 20:12:12,003 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-12-06 20:12:12,004 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-12-06 20:12:12,004 WARN L610 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-12-06 20:12:12,005 WARN L610 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-12-06 20:12:12,022 WARN L610 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-12-06 20:12:12,059 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:12,059 WARN L1533 CHandler]: Possible shadowing of function index [2021-12-06 20:12:12,087 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 20:12:12,261 INFO L208 MainTranslator]: Completed translation [2021-12-06 20:12:12,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:12:12 WrapperNode [2021-12-06 20:12:12,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 20:12:12,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 20:12:12,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 20:12:12,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 20:12:12,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:12:12" (1/1) ... [2021-12-06 20:12:12,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:12:12" (1/1) ... [2021-12-06 20:12:12,407 INFO L137 Inliner]: procedures = 693, calls = 2780, calls flagged for inlining = 57, calls inlined = 5, statements flattened = 822 [2021-12-06 20:12:12,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 20:12:12,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 20:12:12,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 20:12:12,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 20:12:12,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:12:12" (1/1) ... [2021-12-06 20:12:12,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:12:12" (1/1) ... [2021-12-06 20:12:12,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:12:12" (1/1) ... [2021-12-06 20:12:12,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:12:12" (1/1) ... [2021-12-06 20:12:12,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:12:12" (1/1) ... [2021-12-06 20:12:12,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:12:12" (1/1) ... [2021-12-06 20:12:12,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:12:12" (1/1) ... [2021-12-06 20:12:12,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 20:12:12,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 20:12:12,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 20:12:12,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 20:12:12,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:12:12" (1/1) ... [2021-12-06 20:12:12,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 20:12:12,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:12:12,506 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 20:12:12,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 20:12:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2021-12-06 20:12:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2021-12-06 20:12:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_compare [2021-12-06 20:12:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_compare [2021-12-06 20:12:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2021-12-06 20:12:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2021-12-06 20:12:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-06 20:12:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2021-12-06 20:12:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2021-12-06 20:12:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 20:12:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-06 20:12:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-06 20:12:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 20:12:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 20:12:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 20:12:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 20:12:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 20:12:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2021-12-06 20:12:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2021-12-06 20:12:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 20:12:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2021-12-06 20:12:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2021-12-06 20:12:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 20:12:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 20:12:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 20:12:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2021-12-06 20:12:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2021-12-06 20:12:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2021-12-06 20:12:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2021-12-06 20:12:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 20:12:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 20:12:12,709 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 20:12:12,711 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 20:12:13,469 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 20:12:13,475 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 20:12:13,475 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 20:12:13,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:12:13 BoogieIcfgContainer [2021-12-06 20:12:13,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 20:12:13,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 20:12:13,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 20:12:13,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 20:12:13,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 08:12:10" (1/3) ... [2021-12-06 20:12:13,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d93c9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:12:13, skipping insertion in model container [2021-12-06 20:12:13,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 08:12:12" (2/3) ... [2021-12-06 20:12:13,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d93c9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 08:12:13, skipping insertion in model container [2021-12-06 20:12:13,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:12:13" (3/3) ... [2021-12-06 20:12:13,483 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_string_compare_harness.i [2021-12-06 20:12:13,487 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 20:12:13,487 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 20:12:13,523 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 20:12:13,528 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=PETRI_NET, 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 [2021-12-06 20:12:13,528 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 20:12:13,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 80 states have (on average 1.3) internal successors, (104), 81 states have internal predecessors, (104), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2021-12-06 20:12:13,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-06 20:12:13,550 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:12:13,551 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-12-06 20:12:13,551 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:12:13,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:12:13,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1023392938, now seen corresponding path program 1 times [2021-12-06 20:12:13,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:12:13,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266067407] [2021-12-06 20:12:13,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:12:13,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:12:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:13,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:12:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:13,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:12:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:13,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:12:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:13,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 20:12:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:13,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 20:12:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:13,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:12:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:13,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 20:12:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:13,993 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 20:12:13,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:12:13,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266067407] [2021-12-06 20:12:13,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266067407] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:12:13,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:12:13,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 20:12:13,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057700017] [2021-12-06 20:12:13,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:12:13,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 20:12:13,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:12:14,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 20:12:14,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 20:12:14,022 INFO L87 Difference]: Start difference. First operand has 125 states, 80 states have (on average 1.3) internal successors, (104), 81 states have internal predecessors, (104), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 20:12:14,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:12:14,050 INFO L93 Difference]: Finished difference Result 245 states and 350 transitions. [2021-12-06 20:12:14,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 20:12:14,051 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2021-12-06 20:12:14,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:12:14,059 INFO L225 Difference]: With dead ends: 245 [2021-12-06 20:12:14,059 INFO L226 Difference]: Without dead ends: 120 [2021-12-06 20:12:14,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 20:12:14,065 INFO L933 BasicCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:12:14,066 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:12:14,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-12-06 20:12:14,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-12-06 20:12:14,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 76 states have (on average 1.2763157894736843) internal successors, (97), 77 states have internal predecessors, (97), 33 states have call successors, (33), 10 states have call predecessors, (33), 10 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2021-12-06 20:12:14,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 162 transitions. [2021-12-06 20:12:14,103 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 162 transitions. Word has length 52 [2021-12-06 20:12:14,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:12:14,104 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 162 transitions. [2021-12-06 20:12:14,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 20:12:14,105 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 162 transitions. [2021-12-06 20:12:14,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-12-06 20:12:14,107 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:12:14,107 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-12-06 20:12:14,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 20:12:14,108 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:12:14,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:12:14,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1611808362, now seen corresponding path program 1 times [2021-12-06 20:12:14,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:12:14,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117927345] [2021-12-06 20:12:14,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:12:14,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:12:14,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:12:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:12:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:12:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 20:12:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 20:12:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:12:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 20:12:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,355 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 20:12:14,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:12:14,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117927345] [2021-12-06 20:12:14,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117927345] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:12:14,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:12:14,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:12:14,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896160374] [2021-12-06 20:12:14,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:12:14,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:12:14,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:12:14,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:12:14,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:12:14,359 INFO L87 Difference]: Start difference. First operand 120 states and 162 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 20:12:14,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:12:14,407 INFO L93 Difference]: Finished difference Result 176 states and 237 transitions. [2021-12-06 20:12:14,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:12:14,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 52 [2021-12-06 20:12:14,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:12:14,411 INFO L225 Difference]: With dead ends: 176 [2021-12-06 20:12:14,411 INFO L226 Difference]: Without dead ends: 140 [2021-12-06 20:12:14,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:12:14,413 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 8 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:12:14,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 477 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:12:14,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-12-06 20:12:14,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2021-12-06 20:12:14,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 88 states have (on average 1.2840909090909092) internal successors, (113), 89 states have internal predecessors, (113), 38 states have call successors, (38), 10 states have call predecessors, (38), 10 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2021-12-06 20:12:14,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 188 transitions. [2021-12-06 20:12:14,429 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 188 transitions. Word has length 52 [2021-12-06 20:12:14,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:12:14,430 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 188 transitions. [2021-12-06 20:12:14,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 20:12:14,430 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 188 transitions. [2021-12-06 20:12:14,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-06 20:12:14,433 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:12:14,433 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-12-06 20:12:14,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 20:12:14,434 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:12:14,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:12:14,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1339119567, now seen corresponding path program 1 times [2021-12-06 20:12:14,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:12:14,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941386598] [2021-12-06 20:12:14,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:12:14,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:12:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:12:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:12:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:12:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 20:12:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 20:12:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:12:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 20:12:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 20:12:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,639 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 20:12:14,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:12:14,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941386598] [2021-12-06 20:12:14,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941386598] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:12:14,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:12:14,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 20:12:14,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244329273] [2021-12-06 20:12:14,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:12:14,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 20:12:14,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:12:14,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 20:12:14,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:12:14,642 INFO L87 Difference]: Start difference. First operand 137 states and 188 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 20:12:14,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:12:14,665 INFO L93 Difference]: Finished difference Result 164 states and 222 transitions. [2021-12-06 20:12:14,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 20:12:14,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2021-12-06 20:12:14,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:12:14,668 INFO L225 Difference]: With dead ends: 164 [2021-12-06 20:12:14,668 INFO L226 Difference]: Without dead ends: 143 [2021-12-06 20:12:14,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 20:12:14,669 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 0 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:12:14,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 471 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:12:14,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-12-06 20:12:14,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2021-12-06 20:12:14,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 93 states have (on average 1.2688172043010753) internal successors, (118), 93 states have internal predecessors, (118), 38 states have call successors, (38), 10 states have call predecessors, (38), 11 states have return successors, (39), 39 states have call predecessors, (39), 37 states have call successors, (39) [2021-12-06 20:12:14,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 195 transitions. [2021-12-06 20:12:14,682 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 195 transitions. Word has length 61 [2021-12-06 20:12:14,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:12:14,682 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 195 transitions. [2021-12-06 20:12:14,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-06 20:12:14,683 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 195 transitions. [2021-12-06 20:12:14,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-06 20:12:14,685 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:12:14,685 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-12-06 20:12:14,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 20:12:14,685 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:12:14,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:12:14,686 INFO L85 PathProgramCache]: Analyzing trace with hash 911301910, now seen corresponding path program 1 times [2021-12-06 20:12:14,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:12:14,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000377446] [2021-12-06 20:12:14,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:12:14,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:12:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:12:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:12:14,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:12:14,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 20:12:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 20:12:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:12:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 20:12:14,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 20:12:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:14,945 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 20:12:14,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:12:14,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000377446] [2021-12-06 20:12:14,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000377446] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:12:14,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:12:14,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:12:14,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402521126] [2021-12-06 20:12:14,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:12:14,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:12:14,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:12:14,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:12:14,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:12:14,948 INFO L87 Difference]: Start difference. First operand 143 states and 195 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-06 20:12:14,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:12:14,984 INFO L93 Difference]: Finished difference Result 207 states and 280 transitions. [2021-12-06 20:12:14,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:12:14,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2021-12-06 20:12:14,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:12:14,986 INFO L225 Difference]: With dead ends: 207 [2021-12-06 20:12:14,986 INFO L226 Difference]: Without dead ends: 163 [2021-12-06 20:12:14,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:12:14,987 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 5 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:12:14,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 650 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:12:14,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-12-06 20:12:14,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2021-12-06 20:12:14,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 107 states have (on average 1.2616822429906542) internal successors, (135), 108 states have internal predecessors, (135), 44 states have call successors, (44), 10 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 41 states have call successors, (44) [2021-12-06 20:12:15,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 223 transitions. [2021-12-06 20:12:15,000 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 223 transitions. Word has length 62 [2021-12-06 20:12:15,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:12:15,000 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 223 transitions. [2021-12-06 20:12:15,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-12-06 20:12:15,001 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 223 transitions. [2021-12-06 20:12:15,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-06 20:12:15,003 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:12:15,003 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-12-06 20:12:15,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 20:12:15,003 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:12:15,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:12:15,003 INFO L85 PathProgramCache]: Analyzing trace with hash 17815572, now seen corresponding path program 1 times [2021-12-06 20:12:15,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:12:15,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075013377] [2021-12-06 20:12:15,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:12:15,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:12:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:12:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:12:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:12:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 20:12:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 20:12:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:12:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 20:12:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 20:12:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,217 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 20:12:15,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:12:15,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075013377] [2021-12-06 20:12:15,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075013377] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:12:15,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:12:15,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 20:12:15,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978087278] [2021-12-06 20:12:15,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:12:15,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 20:12:15,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:12:15,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 20:12:15,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 20:12:15,219 INFO L87 Difference]: Start difference. First operand 163 states and 223 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2021-12-06 20:12:15,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:12:15,307 INFO L93 Difference]: Finished difference Result 193 states and 260 transitions. [2021-12-06 20:12:15,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 20:12:15,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 62 [2021-12-06 20:12:15,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:12:15,310 INFO L225 Difference]: With dead ends: 193 [2021-12-06 20:12:15,310 INFO L226 Difference]: Without dead ends: 171 [2021-12-06 20:12:15,310 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-12-06 20:12:15,311 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 29 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:12:15,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 970 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:12:15,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-12-06 20:12:15,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 162. [2021-12-06 20:12:15,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 106 states have (on average 1.2641509433962264) internal successors, (134), 107 states have internal predecessors, (134), 44 states have call successors, (44), 10 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 41 states have call successors, (44) [2021-12-06 20:12:15,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 222 transitions. [2021-12-06 20:12:15,321 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 222 transitions. Word has length 62 [2021-12-06 20:12:15,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:12:15,322 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 222 transitions. [2021-12-06 20:12:15,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2021-12-06 20:12:15,322 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 222 transitions. [2021-12-06 20:12:15,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-06 20:12:15,323 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:12:15,323 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:12:15,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 20:12:15,324 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:12:15,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:12:15,324 INFO L85 PathProgramCache]: Analyzing trace with hash -699694359, now seen corresponding path program 1 times [2021-12-06 20:12:15,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:12:15,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476111563] [2021-12-06 20:12:15,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:12:15,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:12:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:12:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:12:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:12:15,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:12:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 20:12:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-06 20:12:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:12:15,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 20:12:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-06 20:12:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-06 20:12:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:12:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 20:12:15,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-06 20:12:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:15,837 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-06 20:12:15,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:12:15,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476111563] [2021-12-06 20:12:15,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476111563] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 20:12:15,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481360537] [2021-12-06 20:12:15,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:12:15,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:12:15,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 20:12:15,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 20:12:15,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 20:12:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:16,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 2584 conjuncts, 79 conjunts are in the unsatisfiable core [2021-12-06 20:12:16,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 20:12:16,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 64 treesize of output 59 [2021-12-06 20:12:16,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 20:12:16,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 20:12:16,548 INFO L354 Elim1Store]: treesize reduction 25, result has 40.5 percent of original size [2021-12-06 20:12:16,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 72 [2021-12-06 20:12:16,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-06 20:12:16,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 11 [2021-12-06 20:12:16,647 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-12-06 20:12:16,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 58 [2021-12-06 20:12:18,472 INFO L354 Elim1Store]: treesize reduction 93, result has 7.9 percent of original size [2021-12-06 20:12:18,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 182 treesize of output 115 [2021-12-06 20:12:18,604 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-06 20:12:18,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 20:12:20,110 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 51 treesize of output 47 [2021-12-06 20:12:20,148 INFO L354 Elim1Store]: treesize reduction 67, result has 33.7 percent of original size [2021-12-06 20:12:20,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 47 treesize of output 55 [2021-12-06 20:12:20,164 INFO L173 IndexEqualityManager]: detected equality via solver [2021-12-06 20:12:20,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 9 [2021-12-06 20:12:20,173 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-12-06 20:12:20,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 45 [2021-12-06 20:12:20,495 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-06 20:12:20,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481360537] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 20:12:20,495 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 20:12:20,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 25, 18] total 50 [2021-12-06 20:12:20,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205853980] [2021-12-06 20:12:20,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 20:12:20,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-12-06 20:12:20,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:12:20,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-12-06 20:12:20,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=2299, Unknown=0, NotChecked=0, Total=2450 [2021-12-06 20:12:20,498 INFO L87 Difference]: Start difference. First operand 162 states and 222 transitions. Second operand has 50 states, 44 states have (on average 2.840909090909091) internal successors, (125), 37 states have internal predecessors, (125), 17 states have call successors, (34), 7 states have call predecessors, (34), 12 states have return successors, (32), 20 states have call predecessors, (32), 15 states have call successors, (32) [2021-12-06 20:12:23,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:12:23,165 INFO L93 Difference]: Finished difference Result 249 states and 332 transitions. [2021-12-06 20:12:23,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-06 20:12:23,166 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 44 states have (on average 2.840909090909091) internal successors, (125), 37 states have internal predecessors, (125), 17 states have call successors, (34), 7 states have call predecessors, (34), 12 states have return successors, (32), 20 states have call predecessors, (32), 15 states have call successors, (32) Word has length 90 [2021-12-06 20:12:23,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:12:23,168 INFO L225 Difference]: With dead ends: 249 [2021-12-06 20:12:23,168 INFO L226 Difference]: Without dead ends: 68 [2021-12-06 20:12:23,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 161 SyntacticMatches, 5 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 970 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=308, Invalid=3982, Unknown=0, NotChecked=0, Total=4290 [2021-12-06 20:12:23,172 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 170 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 2258 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 2570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 2258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 205 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-12-06 20:12:23,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 1256 Invalid, 2570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 2258 Invalid, 0 Unknown, 205 Unchecked, 1.6s Time] [2021-12-06 20:12:23,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-12-06 20:12:23,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 65. [2021-12-06 20:12:23,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 43 states have internal predecessors, (50), 17 states have call successors, (17), 6 states have call predecessors, (17), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-12-06 20:12:23,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 82 transitions. [2021-12-06 20:12:23,180 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 82 transitions. Word has length 90 [2021-12-06 20:12:23,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:12:23,180 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 82 transitions. [2021-12-06 20:12:23,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 44 states have (on average 2.840909090909091) internal successors, (125), 37 states have internal predecessors, (125), 17 states have call successors, (34), 7 states have call predecessors, (34), 12 states have return successors, (32), 20 states have call predecessors, (32), 15 states have call successors, (32) [2021-12-06 20:12:23,181 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 82 transitions. [2021-12-06 20:12:23,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 20:12:23,182 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:12:23,182 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 20:12:23,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 20:12:23,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 20:12:23,383 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:12:23,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:12:23,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1244120169, now seen corresponding path program 1 times [2021-12-06 20:12:23,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:12:23,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997967974] [2021-12-06 20:12:23,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:12:23,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:12:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:12:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:12:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:12:23,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 20:12:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 20:12:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:12:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:12:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:12:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 20:12:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-06 20:12:23,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:12:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 20:12:23,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 20:12:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,553 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 20:12:23,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:12:23,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997967974] [2021-12-06 20:12:23,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997967974] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:12:23,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:12:23,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 20:12:23,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194760624] [2021-12-06 20:12:23,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:12:23,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 20:12:23,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:12:23,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 20:12:23,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 20:12:23,555 INFO L87 Difference]: Start difference. First operand 65 states and 82 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-06 20:12:23,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:12:23,581 INFO L93 Difference]: Finished difference Result 113 states and 142 transitions. [2021-12-06 20:12:23,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 20:12:23,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 96 [2021-12-06 20:12:23,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:12:23,582 INFO L225 Difference]: With dead ends: 113 [2021-12-06 20:12:23,582 INFO L226 Difference]: Without dead ends: 65 [2021-12-06 20:12:23,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 20:12:23,583 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 13 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:12:23,583 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 320 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:12:23,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-12-06 20:12:23,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-12-06 20:12:23,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 42 states have (on average 1.1666666666666667) internal successors, (49), 43 states have internal predecessors, (49), 17 states have call successors, (17), 6 states have call predecessors, (17), 5 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-12-06 20:12:23,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 81 transitions. [2021-12-06 20:12:23,587 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 81 transitions. Word has length 96 [2021-12-06 20:12:23,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:12:23,587 INFO L470 AbstractCegarLoop]: Abstraction has 65 states and 81 transitions. [2021-12-06 20:12:23,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 4 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-06 20:12:23,588 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 81 transitions. [2021-12-06 20:12:23,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 20:12:23,588 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 20:12:23,588 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 20:12:23,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 20:12:23,589 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 20:12:23,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 20:12:23,589 INFO L85 PathProgramCache]: Analyzing trace with hash -2083496473, now seen corresponding path program 1 times [2021-12-06 20:12:23,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 20:12:23,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234409594] [2021-12-06 20:12:23,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 20:12:23,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 20:12:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 20:12:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 20:12:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-06 20:12:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 20:12:23,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 20:12:23,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 20:12:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-06 20:12:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:12:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 20:12:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-06 20:12:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 20:12:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 20:12:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-06 20:12:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 20:12:23,833 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-12-06 20:12:23,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 20:12:23,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234409594] [2021-12-06 20:12:23,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234409594] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 20:12:23,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 20:12:23,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 20:12:23,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324664647] [2021-12-06 20:12:23,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 20:12:23,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 20:12:23,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 20:12:23,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 20:12:23,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2021-12-06 20:12:23,834 INFO L87 Difference]: Start difference. First operand 65 states and 81 transitions. Second operand has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 6 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2021-12-06 20:12:23,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 20:12:23,904 INFO L93 Difference]: Finished difference Result 76 states and 92 transitions. [2021-12-06 20:12:23,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 20:12:23,904 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 6 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 96 [2021-12-06 20:12:23,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 20:12:23,905 INFO L225 Difference]: With dead ends: 76 [2021-12-06 20:12:23,905 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 20:12:23,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-12-06 20:12:23,906 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 20 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 20:12:23,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 337 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 20:12:23,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 20:12:23,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 20:12:23,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 20:12:23,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 20:12:23,908 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 96 [2021-12-06 20:12:23,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 20:12:23,908 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 20:12:23,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.222222222222222) internal successors, (38), 9 states have internal predecessors, (38), 6 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2021-12-06 20:12:23,908 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 20:12:23,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 20:12:23,911 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 20:12:23,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 20:12:23,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 20:12:24,125 INFO L854 garLoopResultBuilder]: At program point L6815(lines 6806 6816) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (< (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) .cse0) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)) (let ((.cse4 (select |#memory_int| |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base|))) (let ((.cse1 (select .cse4 (+ |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| 8)))) (let ((.cse2 (* .cse1 (- 1)))) (let ((.cse3 (< (div (+ (- 1) .cse2 .cse0) (- 18446744073709551616)) (+ (div .cse1 18446744073709551616) 1))) (.cse5 (mod .cse1 18446744073709551616))) (or (and (< 0 (+ (div (+ .cse0 (- 18446744073709551609)) 18446744073709551616) 1)) (= 0 .cse1)) (and (< (div (+ 18446744073709551615 .cse2) (- 18446744073709551616)) (+ (div (+ (- 9223372036854775808) .cse1) 18446744073709551616) 1)) .cse3 (= (select .cse4 (+ |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| (- 18446744073709551600) .cse5)) 0)) (and .cse3 (<= .cse5 9223372036854775807) (= (select .cse4 (+ |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| 16 .cse5)) 0))))))) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| 0) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse0))) [2021-12-06 20:12:24,125 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6800 6804) no Hoare annotation was computed. [2021-12-06 20:12:24,125 INFO L854 garLoopResultBuilder]: At program point L6810(line 6810) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (< (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) .cse0) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse0))) [2021-12-06 20:12:24,125 INFO L858 garLoopResultBuilder]: For program point L6807-1(line 6807) no Hoare annotation was computed. [2021-12-06 20:12:24,125 INFO L854 garLoopResultBuilder]: At program point L6807(line 6807) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (< (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) .cse0) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse0))) [2021-12-06 20:12:24,125 INFO L858 garLoopResultBuilder]: For program point L6810-3(line 6810) no Hoare annotation was computed. [2021-12-06 20:12:24,125 INFO L854 garLoopResultBuilder]: At program point L6810-2(line 6810) the Hoare annotation is: (let ((.cse0 (mod |ensure_string_is_allocated_bounded_length_#in~max_size#1| 18446744073709551616))) (and (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (< (mod |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616) .cse0) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)) (< (mod |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) .cse0))) [2021-12-06 20:12:24,125 INFO L858 garLoopResultBuilder]: For program point L6810-1(lines 6810 6811) no Hoare annotation was computed. [2021-12-06 20:12:24,125 INFO L854 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-06 20:12:24,125 INFO L854 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6800 6804) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-06 20:12:24,125 INFO L858 garLoopResultBuilder]: For program point L6810-5(lines 6810 6811) no Hoare annotation was computed. [2021-12-06 20:12:24,126 INFO L858 garLoopResultBuilder]: For program point L6801-1(line 6801) no Hoare annotation was computed. [2021-12-06 20:12:24,126 INFO L854 garLoopResultBuilder]: At program point L6801(line 6801) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2021-12-06 20:12:24,126 INFO L858 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2021-12-06 20:12:24,126 INFO L858 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6800 6804) no Hoare annotation was computed. [2021-12-06 20:12:24,126 INFO L854 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-12-06 20:12:24,126 INFO L858 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2021-12-06 20:12:24,126 INFO L858 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2021-12-06 20:12:24,126 INFO L858 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2021-12-06 20:12:24,126 INFO L854 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-12-06 20:12:24,126 INFO L858 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2021-12-06 20:12:24,126 INFO L858 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2021-12-06 20:12:24,126 INFO L861 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2021-12-06 20:12:24,126 INFO L861 garLoopResultBuilder]: At program point aws_string_bytesENTRY(lines 6242 6246) the Hoare annotation is: true [2021-12-06 20:12:24,126 INFO L858 garLoopResultBuilder]: For program point aws_string_bytesEXIT(lines 6242 6246) no Hoare annotation was computed. [2021-12-06 20:12:24,126 INFO L858 garLoopResultBuilder]: For program point aws_string_bytesFINAL(lines 6242 6246) no Hoare annotation was computed. [2021-12-06 20:12:24,126 INFO L861 garLoopResultBuilder]: At program point L6244-1(line 6244) the Hoare annotation is: true [2021-12-06 20:12:24,127 INFO L858 garLoopResultBuilder]: For program point L6244-2(line 6244) no Hoare annotation was computed. [2021-12-06 20:12:24,127 INFO L861 garLoopResultBuilder]: At program point L6244(line 6244) the Hoare annotation is: true [2021-12-06 20:12:24,127 INFO L858 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2021-12-06 20:12:24,127 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2021-12-06 20:12:24,127 INFO L858 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-12-06 20:12:24,127 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2021-12-06 20:12:24,127 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6889 6891) no Hoare annotation was computed. [2021-12-06 20:12:24,127 INFO L858 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6889 6891) no Hoare annotation was computed. [2021-12-06 20:12:24,127 INFO L861 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6889 6891) the Hoare annotation is: true [2021-12-06 20:12:24,127 INFO L861 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6252 6257) the Hoare annotation is: true [2021-12-06 20:12:24,127 INFO L858 garLoopResultBuilder]: For program point L6256-2(line 6256) no Hoare annotation was computed. [2021-12-06 20:12:24,127 INFO L858 garLoopResultBuilder]: For program point L6256(line 6256) no Hoare annotation was computed. [2021-12-06 20:12:24,127 INFO L858 garLoopResultBuilder]: For program point L6256-5(line 6256) no Hoare annotation was computed. [2021-12-06 20:12:24,127 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6252 6257) no Hoare annotation was computed. [2021-12-06 20:12:24,127 INFO L858 garLoopResultBuilder]: For program point L6256-3(line 6256) no Hoare annotation was computed. [2021-12-06 20:12:24,127 INFO L858 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6252 6257) no Hoare annotation was computed. [2021-12-06 20:12:24,128 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2021-12-06 20:12:24,128 INFO L861 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2021-12-06 20:12:24,128 INFO L858 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2021-12-06 20:12:24,128 INFO L858 garLoopResultBuilder]: For program point L7100-1(lines 7099 7112) no Hoare annotation was computed. [2021-12-06 20:12:24,128 INFO L854 garLoopResultBuilder]: At program point L7100(line 7100) the Hoare annotation is: false [2021-12-06 20:12:24,128 INFO L854 garLoopResultBuilder]: At program point L9557(line 9557) the Hoare annotation is: false [2021-12-06 20:12:24,128 INFO L854 garLoopResultBuilder]: At program point L9557-1(line 9557) the Hoare annotation is: false [2021-12-06 20:12:24,128 INFO L858 garLoopResultBuilder]: For program point L9557-2(line 9557) no Hoare annotation was computed. [2021-12-06 20:12:24,128 INFO L858 garLoopResultBuilder]: For program point L9549(lines 9549 9551) no Hoare annotation was computed. [2021-12-06 20:12:24,128 INFO L858 garLoopResultBuilder]: For program point L9553-1(lines 9537 9559) no Hoare annotation was computed. [2021-12-06 20:12:24,128 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 20:12:24,128 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 20:12:24,128 INFO L858 garLoopResultBuilder]: For program point L9537(lines 9537 9559) no Hoare annotation was computed. [2021-12-06 20:12:24,128 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 20:12:24,128 INFO L854 garLoopResultBuilder]: At program point L9554(line 9554) the Hoare annotation is: false [2021-12-06 20:12:24,128 INFO L854 garLoopResultBuilder]: At program point L9554-1(line 9554) the Hoare annotation is: false [2021-12-06 20:12:24,129 INFO L858 garLoopResultBuilder]: For program point L9554-2(line 9554) no Hoare annotation was computed. [2021-12-06 20:12:24,129 INFO L858 garLoopResultBuilder]: For program point L9542-1(lines 9542 9544) no Hoare annotation was computed. [2021-12-06 20:12:24,129 INFO L854 garLoopResultBuilder]: At program point L7110(line 7110) the Hoare annotation is: false [2021-12-06 20:12:24,129 INFO L854 garLoopResultBuilder]: At program point L9542-2(line 9542) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2021-12-06 20:12:24,129 INFO L858 garLoopResultBuilder]: For program point L9542-3(lines 9542 9543) no Hoare annotation was computed. [2021-12-06 20:12:24,129 INFO L861 garLoopResultBuilder]: At program point L9538(line 9538) the Hoare annotation is: true [2021-12-06 20:12:24,129 INFO L854 garLoopResultBuilder]: At program point L7106(line 7106) the Hoare annotation is: false [2021-12-06 20:12:24,129 INFO L854 garLoopResultBuilder]: At program point L9542(line 9542) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2021-12-06 20:12:24,129 INFO L858 garLoopResultBuilder]: For program point L7110-1(line 7110) no Hoare annotation was computed. [2021-12-06 20:12:24,129 INFO L858 garLoopResultBuilder]: For program point L9538-5(lines 9538 9539) no Hoare annotation was computed. [2021-12-06 20:12:24,129 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 20:12:24,129 INFO L858 garLoopResultBuilder]: For program point L7106-1(line 7106) no Hoare annotation was computed. [2021-12-06 20:12:24,129 INFO L858 garLoopResultBuilder]: For program point L9538-1(lines 9538 9539) no Hoare annotation was computed. [2021-12-06 20:12:24,129 INFO L858 garLoopResultBuilder]: For program point L9542-5(lines 9542 9543) no Hoare annotation was computed. [2021-12-06 20:12:24,129 INFO L861 garLoopResultBuilder]: At program point L9538-2(line 9538) the Hoare annotation is: true [2021-12-06 20:12:24,129 INFO L858 garLoopResultBuilder]: For program point L9538-3(line 9538) no Hoare annotation was computed. [2021-12-06 20:12:24,130 INFO L858 garLoopResultBuilder]: For program point L9542-7(lines 9542 9544) no Hoare annotation was computed. [2021-12-06 20:12:24,130 INFO L854 garLoopResultBuilder]: At program point L9547(line 9547) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.offset|) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2021-12-06 20:12:24,130 INFO L858 garLoopResultBuilder]: For program point L9547-1(line 9547) no Hoare annotation was computed. [2021-12-06 20:12:24,130 INFO L858 garLoopResultBuilder]: For program point L7107-1(lines 7107 7109) no Hoare annotation was computed. [2021-12-06 20:12:24,130 INFO L854 garLoopResultBuilder]: At program point L7107(lines 7107 7109) the Hoare annotation is: false [2021-12-06 20:12:24,130 INFO L858 garLoopResultBuilder]: For program point L7099(lines 7099 7112) no Hoare annotation was computed. [2021-12-06 20:12:24,130 INFO L861 garLoopResultBuilder]: At program point L9560(line 9560) the Hoare annotation is: true [2021-12-06 20:12:24,130 INFO L858 garLoopResultBuilder]: For program point L9548(line 9548) no Hoare annotation was computed. [2021-12-06 20:12:24,130 INFO L854 garLoopResultBuilder]: At program point L9548-2(line 9548) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| |ULTIMATE.start_aws_string_compare_harness_#t~ite1354#1.offset|) (= |ULTIMATE.start_aws_string_compare_harness_#t~ite1354#1.base| |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base|) (= |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| |ULTIMATE.start_aws_string_compare_harness_~str_b~1#1.offset|) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2021-12-06 20:12:24,131 INFO L858 garLoopResultBuilder]: For program point L9548-3(line 9548) no Hoare annotation was computed. [2021-12-06 20:12:24,131 INFO L854 garLoopResultBuilder]: At program point L9544(line 9544) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.base| 0) (= |ULTIMATE.start_aws_string_compare_harness_~str_a~1#1.offset| 0)) [2021-12-06 20:12:24,131 INFO L858 garLoopResultBuilder]: For program point L9548-4(lines 9548 9552) no Hoare annotation was computed. [2021-12-06 20:12:24,131 INFO L858 garLoopResultBuilder]: For program point L9544-1(line 9544) no Hoare annotation was computed. [2021-12-06 20:12:24,131 INFO L858 garLoopResultBuilder]: For program point L9548-5(lines 9537 9559) no Hoare annotation was computed. [2021-12-06 20:12:24,131 INFO L858 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2021-12-06 20:12:24,131 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2021-12-06 20:12:24,131 INFO L858 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2021-12-06 20:12:24,131 INFO L858 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2021-12-06 20:12:24,132 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2021-12-06 20:12:24,132 INFO L858 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2021-12-06 20:12:24,132 INFO L861 garLoopResultBuilder]: At program point aws_string_compareENTRY(lines 9218 9252) the Hoare annotation is: true [2021-12-06 20:12:24,132 INFO L858 garLoopResultBuilder]: For program point L9239-2(line 9239) no Hoare annotation was computed. [2021-12-06 20:12:24,132 INFO L854 garLoopResultBuilder]: At program point L9239(line 9239) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.base| |aws_string_compare_#in~b.base|)) (not (= |aws_string_compare_#in~b.offset| |aws_string_compare_#in~a.offset|))) [2021-12-06 20:12:24,132 INFO L854 garLoopResultBuilder]: At program point L9239-1(line 9239) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.base| |aws_string_compare_#in~b.base|)) (not (= |aws_string_compare_#in~b.offset| |aws_string_compare_#in~a.offset|))) [2021-12-06 20:12:24,132 INFO L858 garLoopResultBuilder]: For program point L9219(line 9219) no Hoare annotation was computed. [2021-12-06 20:12:24,132 INFO L854 garLoopResultBuilder]: At program point L9219-2(line 9219) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.base| |aws_string_compare_#in~b.base|)) (not (= |aws_string_compare_#in~b.offset| |aws_string_compare_#in~a.offset|)) (and (= aws_string_compare_~a.offset aws_string_compare_~b.offset) (= aws_string_compare_~a.base aws_string_compare_~b.base))) [2021-12-06 20:12:24,132 INFO L858 garLoopResultBuilder]: For program point L9219-3(line 9219) no Hoare annotation was computed. [2021-12-06 20:12:24,132 INFO L858 garLoopResultBuilder]: For program point L9248(lines 9248 9250) no Hoare annotation was computed. [2021-12-06 20:12:24,132 INFO L854 garLoopResultBuilder]: At program point L9219-4(line 9219) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.base| |aws_string_compare_#in~b.base|)) (not (= |aws_string_compare_#in~b.offset| |aws_string_compare_#in~a.offset|)) (and (= aws_string_compare_~a.offset aws_string_compare_~b.offset) (= aws_string_compare_~a.base aws_string_compare_~b.base))) [2021-12-06 20:12:24,132 INFO L858 garLoopResultBuilder]: For program point L9219-5(line 9219) no Hoare annotation was computed. [2021-12-06 20:12:24,132 INFO L854 garLoopResultBuilder]: At program point L9240(line 9240) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.base| |aws_string_compare_#in~b.base|)) (not (= |aws_string_compare_#in~b.offset| |aws_string_compare_#in~a.offset|))) [2021-12-06 20:12:24,132 INFO L854 garLoopResultBuilder]: At program point L9240-1(line 9240) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.base| |aws_string_compare_#in~b.base|)) (not (= |aws_string_compare_#in~b.offset| |aws_string_compare_#in~a.offset|))) [2021-12-06 20:12:24,133 INFO L858 garLoopResultBuilder]: For program point L9240-2(line 9240) no Hoare annotation was computed. [2021-12-06 20:12:24,133 INFO L858 garLoopResultBuilder]: For program point L9220(line 9220) no Hoare annotation was computed. [2021-12-06 20:12:24,133 INFO L854 garLoopResultBuilder]: At program point L9220-2(line 9220) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.base| |aws_string_compare_#in~b.base|)) (not (= |aws_string_compare_#in~b.offset| |aws_string_compare_#in~a.offset|)) (and (= aws_string_compare_~a.offset aws_string_compare_~b.offset) (= aws_string_compare_~a.base aws_string_compare_~b.base))) [2021-12-06 20:12:24,133 INFO L858 garLoopResultBuilder]: For program point L9224(lines 9224 9228) no Hoare annotation was computed. [2021-12-06 20:12:24,133 INFO L858 garLoopResultBuilder]: For program point L9245(lines 9245 9247) no Hoare annotation was computed. [2021-12-06 20:12:24,133 INFO L858 garLoopResultBuilder]: For program point L9220-3(line 9220) no Hoare annotation was computed. [2021-12-06 20:12:24,133 INFO L854 garLoopResultBuilder]: At program point L9220-4(line 9220) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.base| |aws_string_compare_#in~b.base|)) (not (= |aws_string_compare_#in~b.offset| |aws_string_compare_#in~a.offset|)) (and (= aws_string_compare_~a.offset aws_string_compare_~b.offset) (= aws_string_compare_~a.base aws_string_compare_~b.base))) [2021-12-06 20:12:24,133 INFO L858 garLoopResultBuilder]: For program point L9220-5(line 9220) no Hoare annotation was computed. [2021-12-06 20:12:24,133 INFO L858 garLoopResultBuilder]: For program point L9237(line 9237) no Hoare annotation was computed. [2021-12-06 20:12:24,133 INFO L858 garLoopResultBuilder]: For program point L9237-2(line 9237) no Hoare annotation was computed. [2021-12-06 20:12:24,133 INFO L854 garLoopResultBuilder]: At program point L9241(line 9241) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.base| |aws_string_compare_#in~b.base|)) (not (= |aws_string_compare_#in~b.offset| |aws_string_compare_#in~a.offset|))) [2021-12-06 20:12:24,133 INFO L854 garLoopResultBuilder]: At program point L9241-1(line 9241) the Hoare annotation is: (or (not (= |aws_string_compare_#in~a.base| |aws_string_compare_#in~b.base|)) (not (= |aws_string_compare_#in~b.offset| |aws_string_compare_#in~a.offset|))) [2021-12-06 20:12:24,134 INFO L858 garLoopResultBuilder]: For program point L9241-2(line 9241) no Hoare annotation was computed. [2021-12-06 20:12:24,134 INFO L858 garLoopResultBuilder]: For program point L9229(lines 9229 9233) no Hoare annotation was computed. [2021-12-06 20:12:24,134 INFO L858 garLoopResultBuilder]: For program point L9221(lines 9221 9223) no Hoare annotation was computed. [2021-12-06 20:12:24,134 INFO L858 garLoopResultBuilder]: For program point L9242(lines 9242 9244) no Hoare annotation was computed. [2021-12-06 20:12:24,134 INFO L858 garLoopResultBuilder]: For program point aws_string_compareEXIT(lines 9218 9252) no Hoare annotation was computed. [2021-12-06 20:12:24,134 INFO L858 garLoopResultBuilder]: For program point aws_string_compareFINAL(lines 9218 9252) no Hoare annotation was computed. [2021-12-06 20:12:24,136 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 20:12:24,137 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 20:12:24,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 08:12:24 BoogieIcfgContainer [2021-12-06 20:12:24,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 20:12:24,155 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 20:12:24,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 20:12:24,156 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 20:12:24,156 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 08:12:13" (3/4) ... [2021-12-06 20:12:24,159 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 20:12:24,165 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2021-12-06 20:12:24,165 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2021-12-06 20:12:24,165 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2021-12-06 20:12:24,165 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2021-12-06 20:12:24,165 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_bytes [2021-12-06 20:12:24,165 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-06 20:12:24,165 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-12-06 20:12:24,166 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_compare [2021-12-06 20:12:24,166 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2021-12-06 20:12:24,166 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2021-12-06 20:12:24,183 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 125 nodes and edges [2021-12-06 20:12:24,184 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 57 nodes and edges [2021-12-06 20:12:24,186 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-12-06 20:12:24,187 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-12-06 20:12:24,188 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-12-06 20:12:24,189 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-12-06 20:12:24,191 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 20:12:24,192 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 20:12:24,217 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\old(max_size) == max_size && str == 0) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616) && !(\old(max_size) == 16)) && (((0 < (\old(max_size) % 18446744073709551616 + -18446744073709551609) / 18446744073709551616 + 1 && 0 == unknown-#memory_int-unknown[\result][\result + 8]) || (((18446744073709551615 + unknown-#memory_int-unknown[\result][\result + 8] * -1) / -18446744073709551616 < (-9223372036854775808 + unknown-#memory_int-unknown[\result][\result + 8]) / 18446744073709551616 + 1 && (-1 + unknown-#memory_int-unknown[\result][\result + 8] * -1 + \old(max_size) % 18446744073709551616) / -18446744073709551616 < unknown-#memory_int-unknown[\result][\result + 8] / 18446744073709551616 + 1) && unknown-#memory_int-unknown[\result][\result + -18446744073709551600 + unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616] == 0)) || (((-1 + unknown-#memory_int-unknown[\result][\result + 8] * -1 + \old(max_size) % 18446744073709551616) / -18446744073709551616 < unknown-#memory_int-unknown[\result][\result + 8] / 18446744073709551616 + 1 && unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616 <= 9223372036854775807) && unknown-#memory_int-unknown[\result][\result + 16 + unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616] == 0))) && \result == 0) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616 [2021-12-06 20:12:24,917 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 20:12:24,917 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 20:12:24,917 INFO L158 Benchmark]: Toolchain (without parser) took 14535.96ms. Allocated memory was 111.1MB in the beginning and 245.4MB in the end (delta: 134.2MB). Free memory was 83.0MB in the beginning and 138.6MB in the end (delta: -55.6MB). Peak memory consumption was 192.8MB. Max. memory is 16.1GB. [2021-12-06 20:12:24,917 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 79.7MB. Free memory was 60.4MB in the beginning and 60.3MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 20:12:24,918 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1879.82ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 83.0MB in the beginning and 62.6MB in the end (delta: 20.4MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2021-12-06 20:12:24,918 INFO L158 Benchmark]: Boogie Procedure Inliner took 144.95ms. Allocated memory is still 134.2MB. Free memory was 62.6MB in the beginning and 51.4MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 20:12:24,918 INFO L158 Benchmark]: Boogie Preprocessor took 68.21ms. Allocated memory is still 134.2MB. Free memory was 51.4MB in the beginning and 77.6MB in the end (delta: -26.2MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2021-12-06 20:12:24,918 INFO L158 Benchmark]: RCFGBuilder took 1000.45ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 77.6MB in the beginning and 88.3MB in the end (delta: -10.7MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. [2021-12-06 20:12:24,918 INFO L158 Benchmark]: TraceAbstraction took 10676.82ms. Allocated memory was 161.5MB in the beginning and 245.4MB in the end (delta: 83.9MB). Free memory was 87.3MB in the beginning and 123.3MB in the end (delta: -36.0MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2021-12-06 20:12:24,919 INFO L158 Benchmark]: Witness Printer took 761.27ms. Allocated memory is still 245.4MB. Free memory was 123.3MB in the beginning and 138.6MB in the end (delta: -15.3MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. [2021-12-06 20:12:24,920 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 79.7MB. Free memory was 60.4MB in the beginning and 60.3MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1879.82ms. Allocated memory was 111.1MB in the beginning and 134.2MB in the end (delta: 23.1MB). Free memory was 83.0MB in the beginning and 62.6MB in the end (delta: 20.4MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 144.95ms. Allocated memory is still 134.2MB. Free memory was 62.6MB in the beginning and 51.4MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.21ms. Allocated memory is still 134.2MB. Free memory was 51.4MB in the beginning and 77.6MB in the end (delta: -26.2MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1000.45ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 77.6MB in the beginning and 88.3MB in the end (delta: -10.7MB). Peak memory consumption was 47.0MB. Max. memory is 16.1GB. * TraceAbstraction took 10676.82ms. Allocated memory was 161.5MB in the beginning and 245.4MB in the end (delta: 83.9MB). Free memory was 87.3MB in the beginning and 123.3MB in the end (delta: -36.0MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. * Witness Printer took 761.27ms. Allocated memory is still 245.4MB. Free memory was 123.3MB in the beginning and 138.6MB in the end (delta: -15.3MB). Peak memory consumption was 99.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 125 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.6s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 271 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 245 mSDsluCounter, 4649 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 205 IncrementalHoareTripleChecker+Unchecked, 3599 mSDsCounter, 132 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2454 IncrementalHoareTripleChecker+Invalid, 2791 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 132 mSolverCounterUnsat, 1050 mSDtfsCounter, 2454 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 409 GetRequests, 306 SyntacticMatches, 5 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 983 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred in iteration=4, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 247 PreInvPairs, 266 NumberOfFragments, 540 HoareAnnotationTreeSize, 247 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 45 FomulaSimplificationsInter, 275 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 661 NumberOfCodeBlocks, 661 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 741 ConstructedInterpolants, 28 QuantifiedInterpolants, 5649 SizeOfPredicates, 24 NumberOfNonLiveVariables, 2584 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 344/374 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6806]: Loop Invariant Derived loop invariant: (((((\old(max_size) == max_size && str == 0) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616) && !(\old(max_size) == 16)) && (((0 < (\old(max_size) % 18446744073709551616 + -18446744073709551609) / 18446744073709551616 + 1 && 0 == unknown-#memory_int-unknown[\result][\result + 8]) || (((18446744073709551615 + unknown-#memory_int-unknown[\result][\result + 8] * -1) / -18446744073709551616 < (-9223372036854775808 + unknown-#memory_int-unknown[\result][\result + 8]) / 18446744073709551616 + 1 && (-1 + unknown-#memory_int-unknown[\result][\result + 8] * -1 + \old(max_size) % 18446744073709551616) / -18446744073709551616 < unknown-#memory_int-unknown[\result][\result + 8] / 18446744073709551616 + 1) && unknown-#memory_int-unknown[\result][\result + -18446744073709551600 + unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616] == 0)) || (((-1 + unknown-#memory_int-unknown[\result][\result + 8] * -1 + \old(max_size) % 18446744073709551616) / -18446744073709551616 < unknown-#memory_int-unknown[\result][\result + 8] / 18446744073709551616 + 1 && unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616 <= 9223372036854775807) && unknown-#memory_int-unknown[\result][\result + 16 + unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616] == 0))) && \result == 0) && len % 18446744073709551616 < \old(max_size) % 18446744073709551616 - InvariantResult [Line: 9560]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-06 20:12:24,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d561fb-40e7-46d6-87cb-88f0961328d5/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE