./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro --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 2359aa88e8e7d743df9393581b2f3fdb25ac15a45b4f8f680bad72fb64c83223 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:54:34,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:54:34,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:54:34,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:54:34,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:54:34,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:54:34,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:54:34,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:54:34,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:54:34,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:54:34,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:54:34,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:54:34,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:54:34,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:54:34,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:54:34,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:54:34,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:54:34,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:54:34,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:54:34,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:54:34,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:54:34,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:54:34,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:54:34,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:54:34,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:54:34,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:54:34,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:54:34,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:54:34,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:54:34,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:54:34,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:54:34,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:54:34,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:54:34,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:54:34,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:54:34,103 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:54:34,104 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:54:34,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:54:34,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:54:34,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:54:34,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:54:34,107 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:54:34,149 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:54:34,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:54:34,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:54:34,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:54:34,154 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:54:34,154 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:54:34,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:54:34,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:54:34,156 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:54:34,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:54:34,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:54:34,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:54:34,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:54:34,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:54:34,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:54:34,158 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:54:34,158 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:54:34,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:54:34,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:54:34,159 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:54:34,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:54:34,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:54:34,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:54:34,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:54:34,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:54:34,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:54:34,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:54:34,162 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:54:34,162 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:54:34,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:54:34,162 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_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2359aa88e8e7d743df9393581b2f3fdb25ac15a45b4f8f680bad72fb64c83223 [2022-11-18 20:54:34,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:54:34,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:54:34,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:54:34,562 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:54:34,563 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:54:34,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2022-11-18 20:54:34,652 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/data/ed6ef080c/595d2c26511345da818ab258433e1177/FLAG4fe2280e7 [2022-11-18 20:54:35,601 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:54:35,603 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i [2022-11-18 20:54:35,658 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/data/ed6ef080c/595d2c26511345da818ab258433e1177/FLAG4fe2280e7 [2022-11-18 20:54:36,074 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/data/ed6ef080c/595d2c26511345da818ab258433e1177 [2022-11-18 20:54:36,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:54:36,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:54:36,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:54:36,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:54:36,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:54:36,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:54:36" (1/1) ... [2022-11-18 20:54:36,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2209050e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:36, skipping insertion in model container [2022-11-18 20:54:36,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:54:36" (1/1) ... [2022-11-18 20:54:36,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:54:36,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:54:36,679 WARN L234 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_837871e3-f4c1-4657-8b5c-df6696e25c05/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4489,4502] [2022-11-18 20:54:36,688 WARN L234 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_837871e3-f4c1-4657-8b5c-df6696e25c05/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4549,4562] [2022-11-18 20:54:37,945 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:37,948 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:37,950 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:37,951 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:37,955 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:37,972 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:37,975 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:37,983 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:37,986 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:37,991 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:37,993 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:37,994 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:37,995 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:38,562 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 20:54:38,563 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 20:54:38,564 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 20:54:38,565 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 20:54:38,566 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 20:54:38,567 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 20:54:38,567 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 20:54:38,568 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 20:54:38,580 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 20:54:38,588 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 20:54:38,836 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 20:54:39,275 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,276 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,303 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,312 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,321 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,323 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,348 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,353 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,354 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,355 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,356 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,357 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,357 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:54:39,485 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:54:39,517 WARN L234 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_837871e3-f4c1-4657-8b5c-df6696e25c05/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4489,4502] [2022-11-18 20:54:39,517 WARN L234 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_837871e3-f4c1-4657-8b5c-df6696e25c05/sv-benchmarks/c/aws-c-common/aws_hash_string_harness.i[4549,4562] [2022-11-18 20:54:39,568 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,568 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,569 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,570 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,571 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,583 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,583 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,584 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,585 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,592 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,592 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,593 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,593 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,638 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 20:54:39,639 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 20:54:39,640 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 20:54:39,678 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 20:54:39,679 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 20:54:39,679 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 20:54:39,680 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 20:54:39,680 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 20:54:39,681 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 20:54:39,681 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 20:54:39,711 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 20:54:39,814 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,815 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,828 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,829 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,831 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,832 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,842 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,843 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,843 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,844 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,844 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,844 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,846 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:54:39,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:54:40,142 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:54:40,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:40 WrapperNode [2022-11-18 20:54:40,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:54:40,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:54:40,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:54:40,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:54:40,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:40" (1/1) ... [2022-11-18 20:54:40,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:40" (1/1) ... [2022-11-18 20:54:40,393 INFO L138 Inliner]: procedures = 774, calls = 2482, calls flagged for inlining = 67, calls inlined = 5, statements flattened = 526 [2022-11-18 20:54:40,394 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:54:40,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:54:40,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:54:40,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:54:40,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:40" (1/1) ... [2022-11-18 20:54:40,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:40" (1/1) ... [2022-11-18 20:54:40,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:40" (1/1) ... [2022-11-18 20:54:40,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:40" (1/1) ... [2022-11-18 20:54:40,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:40" (1/1) ... [2022-11-18 20:54:40,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:40" (1/1) ... [2022-11-18 20:54:40,528 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:40" (1/1) ... [2022-11-18 20:54:40,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:40" (1/1) ... [2022-11-18 20:54:40,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:54:40,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:54:40,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:54:40,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:54:40,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:40" (1/1) ... [2022-11-18 20:54:40,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:54:40,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:54:40,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:54:40,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:54:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-11-18 20:54:40,664 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-11-18 20:54:40,664 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-11-18 20:54:40,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-11-18 20:54:40,665 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-18 20:54:40,665 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-18 20:54:40,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:54:40,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 20:54:40,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 20:54:40,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:54:40,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:54:40,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:54:40,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:54:40,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:54:40,668 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-18 20:54:40,668 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-18 20:54:40,669 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_bytes [2022-11-18 20:54:40,669 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_bytes [2022-11-18 20:54:40,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:54:40,669 INFO L130 BoogieDeclarations]: Found specification of procedure hashlittle2 [2022-11-18 20:54:40,669 INFO L138 BoogieDeclarations]: Found implementation of procedure hashlittle2 [2022-11-18 20:54:40,670 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-18 20:54:40,670 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-18 20:54:40,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:54:40,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:54:40,670 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 20:54:40,670 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 20:54:40,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:54:40,671 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-18 20:54:40,671 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-18 20:54:40,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:54:41,026 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:54:41,039 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:54:43,447 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2022-11-18 20:54:43,456 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:54:43,463 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:54:43,464 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-18 20:54:43,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:54:43 BoogieIcfgContainer [2022-11-18 20:54:43,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:54:43,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:54:43,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:54:43,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:54:43,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:54:36" (1/3) ... [2022-11-18 20:54:43,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c35fa17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:54:43, skipping insertion in model container [2022-11-18 20:54:43,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:54:40" (2/3) ... [2022-11-18 20:54:43,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c35fa17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:54:43, skipping insertion in model container [2022-11-18 20:54:43,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:54:43" (3/3) ... [2022-11-18 20:54:43,479 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_string_harness.i [2022-11-18 20:54:43,502 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:54:43,503 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:54:43,583 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:54:43,593 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b40b3aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:54:43,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:54:43,598 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 118 states have (on average 1.4661016949152543) internal successors, (173), 118 states have internal predecessors, (173), 15 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-18 20:54:43,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-18 20:54:43,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:43,615 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:43,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:54:43,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:43,624 INFO L85 PathProgramCache]: Analyzing trace with hash 412073855, now seen corresponding path program 1 times [2022-11-18 20:54:43,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:43,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033652318] [2022-11-18 20:54:43,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:43,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:44,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:44,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:54:44,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:44,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:44,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:54:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:44,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:54:44,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:44,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:44,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:54:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:44,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:54:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:44,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 20:54:44,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:44,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:54:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:44,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:44,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:44,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:54:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:44,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 20:54:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:44,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 20:54:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:44,840 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-11-18 20:54:44,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:44,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033652318] [2022-11-18 20:54:44,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033652318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:44,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:54:44,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:54:44,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933859790] [2022-11-18 20:54:44,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:44,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:54:44,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:44,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:54:44,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:54:44,893 INFO L87 Difference]: Start difference. First operand has 144 states, 118 states have (on average 1.4661016949152543) internal successors, (173), 118 states have internal predecessors, (173), 15 states have call successors, (15), 10 states have call predecessors, (15), 10 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:54:45,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:45,417 INFO L93 Difference]: Finished difference Result 277 states and 402 transitions. [2022-11-18 20:54:45,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:54:45,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 93 [2022-11-18 20:54:45,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:45,439 INFO L225 Difference]: With dead ends: 277 [2022-11-18 20:54:45,440 INFO L226 Difference]: Without dead ends: 135 [2022-11-18 20:54:45,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:54:45,453 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 31 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:45,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 376 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:54:45,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-18 20:54:45,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2022-11-18 20:54:45,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 110 states have internal predecessors, (159), 15 states have call successors, (15), 10 states have call predecessors, (15), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-18 20:54:45,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 188 transitions. [2022-11-18 20:54:45,532 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 188 transitions. Word has length 93 [2022-11-18 20:54:45,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:45,533 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 188 transitions. [2022-11-18 20:54:45,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (14), 4 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-18 20:54:45,534 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 188 transitions. [2022-11-18 20:54:45,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-18 20:54:45,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:45,544 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:45,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:54:45,546 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:54:45,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:45,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1080401153, now seen corresponding path program 1 times [2022-11-18 20:54:45,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:45,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344847094] [2022-11-18 20:54:45,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:45,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:48,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:54:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:48,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:48,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:48,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:54:48,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:48,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:54:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:49,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:49,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:54:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:49,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:54:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:49,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 20:54:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:49,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:54:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:49,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:54:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:49,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:54:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:49,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 20:54:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:49,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 20:54:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:49,304 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 20:54:49,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:54:49,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344847094] [2022-11-18 20:54:49,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344847094] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:54:49,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552261325] [2022-11-18 20:54:49,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:49,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:54:49,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:54:49,310 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:54:49,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:54:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:54:49,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 2159 conjuncts, 134 conjunts are in the unsatisfiable core [2022-11-18 20:54:49,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:54:50,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 20:54:52,453 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-18 20:54:52,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 56 treesize of output 43 [2022-11-18 20:54:53,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:54:53,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:54:53,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:54:53,462 INFO L321 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-11-18 20:54:53,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 58 [2022-11-18 20:54:54,980 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:54:54,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:54:54,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552261325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:54:54,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:54:54,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [13] total 44 [2022-11-18 20:54:54,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415054365] [2022-11-18 20:54:54,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:54:54,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 20:54:54,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:54:54,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 20:54:54,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1788, Unknown=1, NotChecked=0, Total=1892 [2022-11-18 20:54:54,986 INFO L87 Difference]: Start difference. First operand 135 states and 188 transitions. Second operand has 34 states, 29 states have (on average 1.9655172413793103) internal successors, (57), 25 states have internal predecessors, (57), 9 states have call successors, (14), 4 states have call predecessors, (14), 8 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-18 20:54:59,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:54:59,321 INFO L93 Difference]: Finished difference Result 227 states and 331 transitions. [2022-11-18 20:54:59,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-18 20:54:59,322 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 29 states have (on average 1.9655172413793103) internal successors, (57), 25 states have internal predecessors, (57), 9 states have call successors, (14), 4 states have call predecessors, (14), 8 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) Word has length 93 [2022-11-18 20:54:59,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:54:59,326 INFO L225 Difference]: With dead ends: 227 [2022-11-18 20:54:59,326 INFO L226 Difference]: Without dead ends: 219 [2022-11-18 20:54:59,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=241, Invalid=4179, Unknown=2, NotChecked=0, Total=4422 [2022-11-18 20:54:59,329 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 153 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 3217 SdHoareTripleChecker+Invalid, 3692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2121 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:54:59,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 3217 Invalid, 3692 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 1541 Invalid, 0 Unknown, 2121 Unchecked, 2.1s Time] [2022-11-18 20:54:59,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-11-18 20:54:59,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 169. [2022-11-18 20:54:59,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 138 states have (on average 1.463768115942029) internal successors, (202), 139 states have internal predecessors, (202), 18 states have call successors, (18), 11 states have call predecessors, (18), 12 states have return successors, (24), 18 states have call predecessors, (24), 17 states have call successors, (24) [2022-11-18 20:54:59,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 244 transitions. [2022-11-18 20:54:59,362 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 244 transitions. Word has length 93 [2022-11-18 20:54:59,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:54:59,363 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 244 transitions. [2022-11-18 20:54:59,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 29 states have (on average 1.9655172413793103) internal successors, (57), 25 states have internal predecessors, (57), 9 states have call successors, (14), 4 states have call predecessors, (14), 8 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-18 20:54:59,363 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 244 transitions. [2022-11-18 20:54:59,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-18 20:54:59,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:54:59,366 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:54:59,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:54:59,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:54:59,575 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:54:59,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:54:59,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1889747779, now seen corresponding path program 1 times [2022-11-18 20:54:59,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:54:59,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938845134] [2022-11-18 20:54:59,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:54:59,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:54:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:00,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:55:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:01,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:55:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:01,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:55:01,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:01,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:55:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:01,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:55:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:01,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:55:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:01,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:55:01,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:01,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 20:55:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:01,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:55:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:01,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:55:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:01,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:55:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:01,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 20:55:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:01,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 20:55:01,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:01,783 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 20:55:01,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:01,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938845134] [2022-11-18 20:55:01,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938845134] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:55:01,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074578979] [2022-11-18 20:55:01,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:01,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:01,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:01,797 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:01,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:55:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:02,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 2154 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-18 20:55:02,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:02,800 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 20:55:02,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:02,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074578979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:02,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:55:02,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [20] total 32 [2022-11-18 20:55:02,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223048466] [2022-11-18 20:55:02,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:02,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:55:02,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:02,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:55:02,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=922, Unknown=0, NotChecked=0, Total=992 [2022-11-18 20:55:02,803 INFO L87 Difference]: Start difference. First operand 169 states and 244 transitions. Second operand has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 12 states have internal predecessors, (51), 5 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 7 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-18 20:55:03,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:03,121 INFO L93 Difference]: Finished difference Result 309 states and 457 transitions. [2022-11-18 20:55:03,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:55:03,122 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 12 states have internal predecessors, (51), 5 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 7 states have call predecessors, (13), 4 states have call successors, (13) Word has length 93 [2022-11-18 20:55:03,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:03,124 INFO L225 Difference]: With dead ends: 309 [2022-11-18 20:55:03,125 INFO L226 Difference]: Without dead ends: 168 [2022-11-18 20:55:03,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=1304, Unknown=0, NotChecked=0, Total=1406 [2022-11-18 20:55:03,128 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 28 mSDsluCounter, 1878 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:03,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 2056 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:55:03,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-18 20:55:03,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2022-11-18 20:55:03,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 137 states have (on average 1.467153284671533) internal successors, (201), 140 states have internal predecessors, (201), 17 states have call successors, (17), 10 states have call predecessors, (17), 13 states have return successors, (20), 17 states have call predecessors, (20), 16 states have call successors, (20) [2022-11-18 20:55:03,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 238 transitions. [2022-11-18 20:55:03,146 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 238 transitions. Word has length 93 [2022-11-18 20:55:03,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:03,147 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 238 transitions. [2022-11-18 20:55:03,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.642857142857143) internal successors, (51), 12 states have internal predecessors, (51), 5 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 7 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-18 20:55:03,147 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 238 transitions. [2022-11-18 20:55:03,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-18 20:55:03,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:03,150 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:03,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:03,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:03,360 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:55:03,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:03,360 INFO L85 PathProgramCache]: Analyzing trace with hash -420869631, now seen corresponding path program 2 times [2022-11-18 20:55:03,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:03,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626820372] [2022-11-18 20:55:03,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:03,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:04,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:55:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:04,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:55:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:04,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:55:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:04,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:55:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:05,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:55:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:05,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:55:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:05,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:55:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:05,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 20:55:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:05,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:55:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:05,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:55:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:05,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:55:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:05,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 20:55:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:05,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-11-18 20:55:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:05,466 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 20:55:05,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:05,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626820372] [2022-11-18 20:55:05,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626820372] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:55:05,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100798344] [2022-11-18 20:55:05,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:55:05,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:05,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:05,468 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:05,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:55:06,153 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:55:06,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:55:06,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 2154 conjuncts, 40 conjunts are in the unsatisfiable core [2022-11-18 20:55:06,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:06,773 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-18 20:55:06,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:06,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100798344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:06,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:55:06,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [22] total 37 [2022-11-18 20:55:06,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836912703] [2022-11-18 20:55:06,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:06,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-18 20:55:06,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:06,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 20:55:06,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1251, Unknown=0, NotChecked=0, Total=1332 [2022-11-18 20:55:06,777 INFO L87 Difference]: Start difference. First operand 168 states and 238 transitions. Second operand has 17 states, 15 states have (on average 3.8) internal successors, (57), 14 states have internal predecessors, (57), 7 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-18 20:55:07,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:07,264 INFO L93 Difference]: Finished difference Result 287 states and 417 transitions. [2022-11-18 20:55:07,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 20:55:07,265 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.8) internal successors, (57), 14 states have internal predecessors, (57), 7 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 93 [2022-11-18 20:55:07,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:07,267 INFO L225 Difference]: With dead ends: 287 [2022-11-18 20:55:07,267 INFO L226 Difference]: Without dead ends: 150 [2022-11-18 20:55:07,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=118, Invalid=1774, Unknown=0, NotChecked=0, Total=1892 [2022-11-18 20:55:07,270 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 35 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 2404 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:07,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 2404 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:55:07,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-18 20:55:07,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-18 20:55:07,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 125 states have (on average 1.472) internal successors, (184), 125 states have internal predecessors, (184), 15 states have call successors, (15), 10 states have call predecessors, (15), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-18 20:55:07,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 213 transitions. [2022-11-18 20:55:07,286 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 213 transitions. Word has length 93 [2022-11-18 20:55:07,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:07,286 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 213 transitions. [2022-11-18 20:55:07,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.8) internal successors, (57), 14 states have internal predecessors, (57), 7 states have call successors, (14), 2 states have call predecessors, (14), 6 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-18 20:55:07,287 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 213 transitions. [2022-11-18 20:55:07,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-18 20:55:07,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:07,298 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:07,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:07,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:07,508 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:55:07,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:07,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1741756842, now seen corresponding path program 1 times [2022-11-18 20:55:07,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:07,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267019081] [2022-11-18 20:55:07,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:07,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:09,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:55:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:09,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:55:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:09,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:55:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:09,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:55:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:09,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:55:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:09,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:55:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:09,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:55:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:09,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 20:55:09,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:09,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:55:09,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:09,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:55:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:09,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:55:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:09,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 20:55:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:09,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:55:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:09,858 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-18 20:55:09,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:09,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267019081] [2022-11-18 20:55:09,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267019081] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:55:09,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806681486] [2022-11-18 20:55:09,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:09,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:09,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:09,860 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:09,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:55:10,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:10,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 2161 conjuncts, 134 conjunts are in the unsatisfiable core [2022-11-18 20:55:10,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:10,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-18 20:55:12,367 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-18 20:55:12,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 56 treesize of output 43 [2022-11-18 20:55:13,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:13,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:13,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:13,143 INFO L321 Elim1Store]: treesize reduction 33, result has 40.0 percent of original size [2022-11-18 20:55:13,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 58 [2022-11-18 20:55:14,411 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:55:14,411 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:55:14,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806681486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:55:14,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:55:14,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [13] total 44 [2022-11-18 20:55:14,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789756328] [2022-11-18 20:55:14,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:55:14,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 20:55:14,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:14,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 20:55:14,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1788, Unknown=1, NotChecked=0, Total=1892 [2022-11-18 20:55:14,415 INFO L87 Difference]: Start difference. First operand 150 states and 213 transitions. Second operand has 34 states, 29 states have (on average 2.0) internal successors, (58), 25 states have internal predecessors, (58), 9 states have call successors, (14), 4 states have call predecessors, (14), 8 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-18 20:55:17,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:17,643 INFO L93 Difference]: Finished difference Result 218 states and 309 transitions. [2022-11-18 20:55:17,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-18 20:55:17,643 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 29 states have (on average 2.0) internal successors, (58), 25 states have internal predecessors, (58), 9 states have call successors, (14), 4 states have call predecessors, (14), 8 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) Word has length 94 [2022-11-18 20:55:17,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:17,645 INFO L225 Difference]: With dead ends: 218 [2022-11-18 20:55:17,646 INFO L226 Difference]: Without dead ends: 200 [2022-11-18 20:55:17,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=241, Invalid=4179, Unknown=2, NotChecked=0, Total=4422 [2022-11-18 20:55:17,649 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 225 mSDsluCounter, 3119 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 3635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2239 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:17,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 3260 Invalid, 3635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1371 Invalid, 0 Unknown, 2239 Unchecked, 1.5s Time] [2022-11-18 20:55:17,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-18 20:55:17,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 150. [2022-11-18 20:55:17,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 125 states have (on average 1.464) internal successors, (183), 125 states have internal predecessors, (183), 15 states have call successors, (15), 10 states have call predecessors, (15), 9 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-18 20:55:17,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 212 transitions. [2022-11-18 20:55:17,663 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 212 transitions. Word has length 94 [2022-11-18 20:55:17,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:17,664 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 212 transitions. [2022-11-18 20:55:17,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 29 states have (on average 2.0) internal successors, (58), 25 states have internal predecessors, (58), 9 states have call successors, (14), 4 states have call predecessors, (14), 8 states have return successors, (13), 10 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-18 20:55:17,665 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 212 transitions. [2022-11-18 20:55:17,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-18 20:55:17,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:55:17,667 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:55:17,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:17,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:17,876 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:55:17,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:55:17,877 INFO L85 PathProgramCache]: Analyzing trace with hash 940223250, now seen corresponding path program 1 times [2022-11-18 20:55:17,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:55:17,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497489701] [2022-11-18 20:55:17,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:17,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:55:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:19,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:55:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:20,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:55:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:20,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:55:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:20,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:55:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:20,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:55:20,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:20,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:55:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:20,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 20:55:20,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:20,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-18 20:55:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:20,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-18 20:55:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:20,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:55:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:20,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:55:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:20,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 20:55:20,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:20,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-18 20:55:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:20,612 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-18 20:55:20,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:55:20,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497489701] [2022-11-18 20:55:20,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497489701] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:55:20,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648064507] [2022-11-18 20:55:20,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:55:20,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:20,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:55:20,614 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:55:20,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:55:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:55:21,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 2172 conjuncts, 157 conjunts are in the unsatisfiable core [2022-11-18 20:55:21,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:55:21,382 INFO L350 Elim1Store]: Elim1 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 57 treesize of output 52 [2022-11-18 20:55:21,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 26 [2022-11-18 20:55:21,438 INFO L321 Elim1Store]: treesize reduction 17, result has 52.8 percent of original size [2022-11-18 20:55:21,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 32 [2022-11-18 20:55:29,722 INFO L321 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2022-11-18 20:55:29,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 105 treesize of output 63 [2022-11-18 20:55:30,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:30,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:30,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:30,995 INFO L321 Elim1Store]: treesize reduction 72, result has 40.5 percent of original size [2022-11-18 20:55:30,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 161 treesize of output 210 [2022-11-18 20:55:31,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2022-11-18 20:55:31,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-18 20:55:31,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-18 20:55:31,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:31,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-18 20:55:31,492 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-18 20:55:31,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 188 treesize of output 136 [2022-11-18 20:55:31,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 10 [2022-11-18 20:55:31,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 9 treesize of output 7 [2022-11-18 20:55:32,854 INFO L321 Elim1Store]: treesize reduction 100, result has 1.0 percent of original size [2022-11-18 20:55:32,854 INFO L350 Elim1Store]: Elim1 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 168 treesize of output 93 [2022-11-18 20:55:33,132 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 27 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:55:33,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:55:35,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648064507] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:55:35,731 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 20:55:35,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 45] total 56 [2022-11-18 20:55:35,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052601502] [2022-11-18 20:55:35,732 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 20:55:35,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-11-18 20:55:35,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:55:35,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-11-18 20:55:35,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=3825, Unknown=1, NotChecked=0, Total=4032 [2022-11-18 20:55:35,735 INFO L87 Difference]: Start difference. First operand 150 states and 212 transitions. Second operand has 56 states, 47 states have (on average 2.1914893617021276) internal successors, (103), 39 states have internal predecessors, (103), 15 states have call successors, (28), 9 states have call predecessors, (28), 13 states have return successors, (26), 16 states have call predecessors, (26), 14 states have call successors, (26) [2022-11-18 20:55:37,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:55:37,431 INFO L93 Difference]: Finished difference Result 154 states and 215 transitions. [2022-11-18 20:55:37,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:55:37,432 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 47 states have (on average 2.1914893617021276) internal successors, (103), 39 states have internal predecessors, (103), 15 states have call successors, (28), 9 states have call predecessors, (28), 13 states have return successors, (26), 16 states have call predecessors, (26), 14 states have call successors, (26) Word has length 94 [2022-11-18 20:55:37,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:55:37,432 INFO L225 Difference]: With dead ends: 154 [2022-11-18 20:55:37,432 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:55:37,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 78 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1332 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=302, Invalid=5397, Unknown=1, NotChecked=0, Total=5700 [2022-11-18 20:55:37,436 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 57 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 390 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:55:37,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 299 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 464 Invalid, 0 Unknown, 390 Unchecked, 0.6s Time] [2022-11-18 20:55:37,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:55:37,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:55:37,437 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) [2022-11-18 20:55:37,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:55:37,438 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 94 [2022-11-18 20:55:37,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:55:37,438 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:55:37,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 47 states have (on average 2.1914893617021276) internal successors, (103), 39 states have internal predecessors, (103), 15 states have call successors, (28), 9 states have call predecessors, (28), 13 states have return successors, (26), 16 states have call predecessors, (26), 14 states have call successors, (26) [2022-11-18 20:55:37,439 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:55:37,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:55:37,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 20:55:37,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:55:37,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:55:37,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:55:37,912 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6861 6865) no Hoare annotation was computed. [2022-11-18 20:55:37,912 INFO L895 garLoopResultBuilder]: At program point L6876(lines 6867 6877) the Hoare annotation is: (and (<= (+ |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 1) |#StackHeapBarrier|) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 32)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0)) (let ((.cse0 (select |#memory_int| |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base|))) (let ((.cse2 (select .cse0 (+ |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| 8)))) (let ((.cse1 (mod .cse2 18446744073709551616))) (or (and (= (select .cse0 (+ |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| (- 18446744073709551600) .cse1)) 0) (<= (+ 9223372036854775808 (* 18446744073709551616 (div .cse2 18446744073709551616))) .cse2)) (and (<= (+ 18446744073709551616 (* (div (+ (- 9223372036854775808) .cse2) 18446744073709551616) 18446744073709551616)) .cse2) (= (select .cse0 (+ |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| 16 .cse1)) 0)) (= 0 .cse2))))) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 32 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (<= (+ |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 1) |#StackHeapBarrier|) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.offset| 0)) [2022-11-18 20:55:37,912 INFO L899 garLoopResultBuilder]: For program point L6871-1(lines 6871 6872) no Hoare annotation was computed. [2022-11-18 20:55:37,913 INFO L895 garLoopResultBuilder]: At program point L6871(line 6871) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 32)) (= |#memory_int| |old(#memory_int)|) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 32 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (<= (+ |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 1) |#StackHeapBarrier|)) [2022-11-18 20:55:37,913 INFO L899 garLoopResultBuilder]: For program point L6871-5(lines 6871 6872) no Hoare annotation was computed. [2022-11-18 20:55:37,913 INFO L899 garLoopResultBuilder]: For program point L6868-1(line 6868) no Hoare annotation was computed. [2022-11-18 20:55:37,913 INFO L895 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6861 6865) 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$.offset)|) (= |old(#valid)| |#valid|)) [2022-11-18 20:55:37,913 INFO L895 garLoopResultBuilder]: At program point L6868(line 6868) the Hoare annotation is: (let ((.cse0 (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 32)))) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (or .cse0 (<= 0 (+ (div (+ 31 (* (- 1) |ensure_string_is_allocated_bounded_length_~len~1#1|)) 18446744073709551616) (div |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616)))) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 32 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (or .cse0 (<= 0 (+ (div |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| 18446744073709551616) (div (+ (* (- 1) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 31) 18446744073709551616)))) (= |old(#valid)| |#valid|))) [2022-11-18 20:55:37,913 INFO L899 garLoopResultBuilder]: For program point L6871-3(line 6871) no Hoare annotation was computed. [2022-11-18 20:55:37,914 INFO L895 garLoopResultBuilder]: At program point L6871-2(line 6871) the Hoare annotation is: (and (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 32)) (= |#memory_int| |old(#memory_int)|) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.offset| 0) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 32 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (<= (+ |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 1) |#StackHeapBarrier|)) [2022-11-18 20:55:37,914 INFO L895 garLoopResultBuilder]: At program point L6862(line 6862) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 32 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |old(#valid)| |#valid|)) [2022-11-18 20:55:37,914 INFO L899 garLoopResultBuilder]: For program point L6863-1(line 6863) no Hoare annotation was computed. [2022-11-18 20:55:37,914 INFO L895 garLoopResultBuilder]: At program point L6863(line 6863) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 32 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |old(#valid)| |#valid|)) [2022-11-18 20:55:37,914 INFO L899 garLoopResultBuilder]: For program point L6862-1(line 6862) no Hoare annotation was computed. [2022-11-18 20:55:37,914 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6861 6865) no Hoare annotation was computed. [2022-11-18 20:55:37,914 INFO L899 garLoopResultBuilder]: For program point L6944-1(lines 6944 6946) no Hoare annotation was computed. [2022-11-18 20:55:37,914 INFO L895 garLoopResultBuilder]: At program point L6944(lines 6944 6946) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-11-18 20:55:37,915 INFO L895 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6943 6948) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-11-18 20:55:37,915 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6943 6948) no Hoare annotation was computed. [2022-11-18 20:55:37,915 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6943 6948) no Hoare annotation was computed. [2022-11-18 20:55:37,915 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-11-18 20:55:37,915 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-11-18 20:55:37,915 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-11-18 20:55:37,915 INFO L902 garLoopResultBuilder]: At program point aws_string_bytesENTRY(lines 6291 6295) the Hoare annotation is: true [2022-11-18 20:55:37,915 INFO L899 garLoopResultBuilder]: For program point aws_string_bytesEXIT(lines 6291 6295) no Hoare annotation was computed. [2022-11-18 20:55:37,915 INFO L899 garLoopResultBuilder]: For program point aws_string_bytesFINAL(lines 6291 6295) no Hoare annotation was computed. [2022-11-18 20:55:37,916 INFO L899 garLoopResultBuilder]: For program point L6293-2(line 6293) no Hoare annotation was computed. [2022-11-18 20:55:37,916 INFO L902 garLoopResultBuilder]: At program point L6293(line 6293) the Hoare annotation is: true [2022-11-18 20:55:37,916 INFO L902 garLoopResultBuilder]: At program point L6293-1(line 6293) the Hoare annotation is: true [2022-11-18 20:55:37,916 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-11-18 20:55:37,916 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-11-18 20:55:37,916 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-11-18 20:55:37,916 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-11-18 20:55:37,916 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6950 6952) no Hoare annotation was computed. [2022-11-18 20:55:37,916 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6950 6952) no Hoare annotation was computed. [2022-11-18 20:55:37,916 INFO L902 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6950 6952) the Hoare annotation is: true [2022-11-18 20:55:37,917 INFO L899 garLoopResultBuilder]: For program point L6305-2(line 6305) no Hoare annotation was computed. [2022-11-18 20:55:37,917 INFO L899 garLoopResultBuilder]: For program point L6305-3(line 6305) no Hoare annotation was computed. [2022-11-18 20:55:37,917 INFO L899 garLoopResultBuilder]: For program point L6305(line 6305) no Hoare annotation was computed. [2022-11-18 20:55:37,917 INFO L902 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6301 6306) the Hoare annotation is: true [2022-11-18 20:55:37,917 INFO L899 garLoopResultBuilder]: For program point L6305-5(line 6305) no Hoare annotation was computed. [2022-11-18 20:55:37,917 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6301 6306) no Hoare annotation was computed. [2022-11-18 20:55:37,917 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6301 6306) no Hoare annotation was computed. [2022-11-18 20:55:37,917 INFO L899 garLoopResultBuilder]: For program point L8921(line 8921) no Hoare annotation was computed. [2022-11-18 20:55:37,917 INFO L899 garLoopResultBuilder]: For program point L8921-2(line 8921) no Hoare annotation was computed. [2022-11-18 20:55:37,918 INFO L899 garLoopResultBuilder]: For program point L8971(line 8971) no Hoare annotation was computed. [2022-11-18 20:55:37,918 INFO L899 garLoopResultBuilder]: For program point L8872(line 8872) no Hoare annotation was computed. [2022-11-18 20:55:37,918 INFO L899 garLoopResultBuilder]: For program point L8922(line 8922) no Hoare annotation was computed. [2022-11-18 20:55:37,918 INFO L899 garLoopResultBuilder]: For program point hashlittle2FINAL(lines 8838 8977) no Hoare annotation was computed. [2022-11-18 20:55:37,918 INFO L899 garLoopResultBuilder]: For program point L8856-3(lines 8856 8864) no Hoare annotation was computed. [2022-11-18 20:55:37,918 INFO L902 garLoopResultBuilder]: At program point L8856-2(lines 8856 8864) the Hoare annotation is: true [2022-11-18 20:55:37,918 INFO L899 garLoopResultBuilder]: For program point L8873(line 8873) no Hoare annotation was computed. [2022-11-18 20:55:37,918 INFO L902 garLoopResultBuilder]: At program point L8956(lines 8956 8972) the Hoare annotation is: true [2022-11-18 20:55:37,918 INFO L902 garLoopResultBuilder]: At program point L8890-2(lines 8890 8898) the Hoare annotation is: true [2022-11-18 20:55:37,919 INFO L899 garLoopResultBuilder]: For program point L8890-3(lines 8890 8898) no Hoare annotation was computed. [2022-11-18 20:55:37,919 INFO L899 garLoopResultBuilder]: For program point L8874(line 8874) no Hoare annotation was computed. [2022-11-18 20:55:37,919 INFO L899 garLoopResultBuilder]: For program point L8924(line 8924) no Hoare annotation was computed. [2022-11-18 20:55:37,919 INFO L899 garLoopResultBuilder]: For program point L8924-2(line 8924) no Hoare annotation was computed. [2022-11-18 20:55:37,919 INFO L899 garLoopResultBuilder]: For program point L8908(line 8908) no Hoare annotation was computed. [2022-11-18 20:55:37,919 INFO L899 garLoopResultBuilder]: For program point L8875(line 8875) no Hoare annotation was computed. [2022-11-18 20:55:37,919 INFO L899 garLoopResultBuilder]: For program point L8908-2(line 8908) no Hoare annotation was computed. [2022-11-18 20:55:37,919 INFO L899 garLoopResultBuilder]: For program point L8925(line 8925) no Hoare annotation was computed. [2022-11-18 20:55:37,919 INFO L899 garLoopResultBuilder]: For program point L8958-2(line 8958) no Hoare annotation was computed. [2022-11-18 20:55:37,919 INFO L899 garLoopResultBuilder]: For program point L8958(line 8958) no Hoare annotation was computed. [2022-11-18 20:55:37,920 INFO L899 garLoopResultBuilder]: For program point L8909(line 8909) no Hoare annotation was computed. [2022-11-18 20:55:37,920 INFO L899 garLoopResultBuilder]: For program point L8876(line 8876) no Hoare annotation was computed. [2022-11-18 20:55:37,920 INFO L899 garLoopResultBuilder]: For program point L8959-2(line 8959) no Hoare annotation was computed. [2022-11-18 20:55:37,920 INFO L899 garLoopResultBuilder]: For program point L8959(line 8959) no Hoare annotation was computed. [2022-11-18 20:55:37,920 INFO L899 garLoopResultBuilder]: For program point L8877(line 8877) no Hoare annotation was computed. [2022-11-18 20:55:37,920 INFO L899 garLoopResultBuilder]: For program point hashlittle2EXIT(lines 8838 8977) no Hoare annotation was computed. [2022-11-18 20:55:37,920 INFO L899 garLoopResultBuilder]: For program point L8960(line 8960) no Hoare annotation was computed. [2022-11-18 20:55:37,920 INFO L899 garLoopResultBuilder]: For program point L8927(line 8927) no Hoare annotation was computed. [2022-11-18 20:55:37,920 INFO L899 garLoopResultBuilder]: For program point L8960-2(line 8960) no Hoare annotation was computed. [2022-11-18 20:55:37,920 INFO L899 garLoopResultBuilder]: For program point L8878(line 8878) no Hoare annotation was computed. [2022-11-18 20:55:37,921 INFO L899 garLoopResultBuilder]: For program point L8961(line 8961) no Hoare annotation was computed. [2022-11-18 20:55:37,921 INFO L899 garLoopResultBuilder]: For program point L8961-2(line 8961) no Hoare annotation was computed. [2022-11-18 20:55:37,921 INFO L899 garLoopResultBuilder]: For program point L8879(line 8879) no Hoare annotation was computed. [2022-11-18 20:55:37,921 INFO L899 garLoopResultBuilder]: For program point L8962(line 8962) no Hoare annotation was computed. [2022-11-18 20:55:37,921 INFO L899 garLoopResultBuilder]: For program point L8929(line 8929) no Hoare annotation was computed. [2022-11-18 20:55:37,921 INFO L899 garLoopResultBuilder]: For program point L8962-2(line 8962) no Hoare annotation was computed. [2022-11-18 20:55:37,921 INFO L899 garLoopResultBuilder]: For program point L8913(line 8913) no Hoare annotation was computed. [2022-11-18 20:55:37,921 INFO L899 garLoopResultBuilder]: For program point L8880(line 8880) no Hoare annotation was computed. [2022-11-18 20:55:37,921 INFO L899 garLoopResultBuilder]: For program point L8913-2(line 8913) no Hoare annotation was computed. [2022-11-18 20:55:37,921 INFO L899 garLoopResultBuilder]: For program point L8963(line 8963) no Hoare annotation was computed. [2022-11-18 20:55:37,922 INFO L899 garLoopResultBuilder]: For program point L8963-2(line 8963) no Hoare annotation was computed. [2022-11-18 20:55:37,922 INFO L902 garLoopResultBuilder]: At program point hashlittle2ENTRY(lines 8838 8977) the Hoare annotation is: true [2022-11-18 20:55:37,922 INFO L899 garLoopResultBuilder]: For program point L8914(line 8914) no Hoare annotation was computed. [2022-11-18 20:55:37,922 INFO L899 garLoopResultBuilder]: For program point L8881(line 8881) no Hoare annotation was computed. [2022-11-18 20:55:37,922 INFO L899 garLoopResultBuilder]: For program point L8964(line 8964) no Hoare annotation was computed. [2022-11-18 20:55:37,922 INFO L899 garLoopResultBuilder]: For program point L8964-2(line 8964) no Hoare annotation was computed. [2022-11-18 20:55:37,922 INFO L899 garLoopResultBuilder]: For program point L8882(line 8882) no Hoare annotation was computed. [2022-11-18 20:55:37,922 INFO L899 garLoopResultBuilder]: For program point L8965(line 8965) no Hoare annotation was computed. [2022-11-18 20:55:37,922 INFO L899 garLoopResultBuilder]: For program point L8965-2(line 8965) no Hoare annotation was computed. [2022-11-18 20:55:37,922 INFO L899 garLoopResultBuilder]: For program point L8966-2(line 8966) no Hoare annotation was computed. [2022-11-18 20:55:37,923 INFO L899 garLoopResultBuilder]: For program point L8966(line 8966) no Hoare annotation was computed. [2022-11-18 20:55:37,923 INFO L899 garLoopResultBuilder]: For program point L8917(line 8917) no Hoare annotation was computed. [2022-11-18 20:55:37,923 INFO L899 garLoopResultBuilder]: For program point L8917-2(line 8917) no Hoare annotation was computed. [2022-11-18 20:55:37,923 INFO L899 garLoopResultBuilder]: For program point L8967-2(line 8967) no Hoare annotation was computed. [2022-11-18 20:55:37,923 INFO L902 garLoopResultBuilder]: At program point L8868(lines 8868 8883) the Hoare annotation is: true [2022-11-18 20:55:37,923 INFO L899 garLoopResultBuilder]: For program point L8967(line 8967) no Hoare annotation was computed. [2022-11-18 20:55:37,923 INFO L899 garLoopResultBuilder]: For program point L8852(line 8852) no Hoare annotation was computed. [2022-11-18 20:55:37,923 INFO L899 garLoopResultBuilder]: For program point L8852-2(lines 8852 8973) no Hoare annotation was computed. [2022-11-18 20:55:37,923 INFO L899 garLoopResultBuilder]: For program point L8918(line 8918) no Hoare annotation was computed. [2022-11-18 20:55:37,923 INFO L899 garLoopResultBuilder]: For program point L8968(line 8968) no Hoare annotation was computed. [2022-11-18 20:55:37,924 INFO L902 garLoopResultBuilder]: At program point L8902(lines 8902 8930) the Hoare annotation is: true [2022-11-18 20:55:37,924 INFO L899 garLoopResultBuilder]: For program point L8968-2(line 8968) no Hoare annotation was computed. [2022-11-18 20:55:37,924 INFO L899 garLoopResultBuilder]: For program point L8886-2(lines 8886 8973) no Hoare annotation was computed. [2022-11-18 20:55:37,924 INFO L899 garLoopResultBuilder]: For program point L8886-4(lines 8852 8973) no Hoare annotation was computed. [2022-11-18 20:55:37,924 INFO L899 garLoopResultBuilder]: For program point L8886(line 8886) no Hoare annotation was computed. [2022-11-18 20:55:37,924 INFO L899 garLoopResultBuilder]: For program point L8936-3(lines 8936 8953) no Hoare annotation was computed. [2022-11-18 20:55:37,924 INFO L899 garLoopResultBuilder]: For program point L8969(line 8969) no Hoare annotation was computed. [2022-11-18 20:55:37,925 INFO L899 garLoopResultBuilder]: For program point L8870(line 8870) no Hoare annotation was computed. [2022-11-18 20:55:37,925 INFO L902 garLoopResultBuilder]: At program point L8936-2(lines 8936 8953) the Hoare annotation is: true [2022-11-18 20:55:37,925 INFO L899 garLoopResultBuilder]: For program point L8904(line 8904) no Hoare annotation was computed. [2022-11-18 20:55:37,925 INFO L899 garLoopResultBuilder]: For program point L8871(line 8871) no Hoare annotation was computed. [2022-11-18 20:55:37,925 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-11-18 20:55:37,925 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-11-18 20:55:37,925 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-11-18 20:55:37,925 INFO L899 garLoopResultBuilder]: For program point L9951-2(line 9951) no Hoare annotation was computed. [2022-11-18 20:55:37,925 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:55:37,926 INFO L895 garLoopResultBuilder]: At program point L9951-4(line 9951) the Hoare annotation is: (let ((.cse1 (select |#memory_int| |ULTIMATE.start_aws_hash_string_~str~3#1.base|))) (let ((.cse0 (mod (select .cse1 (+ |ULTIMATE.start_aws_hash_string_~str~3#1.offset| 8)) 18446744073709551616))) (and (not (< 12 .cse0)) (not (= |ULTIMATE.start_aws_hash_string_~str~3#1.base| 0)) (not (= |ULTIMATE.start_aws_hash_string_~item#1.base| 0)) (= |ULTIMATE.start_aws_hash_string_~str~3#1.offset| 0) (= (mod (select .cse1 (+ |ULTIMATE.start_aws_hash_string_~str~3#1.offset| 16 .cse0)) 256) 0)))) [2022-11-18 20:55:37,926 INFO L899 garLoopResultBuilder]: For program point L9951-5(line 9951) no Hoare annotation was computed. [2022-11-18 20:55:37,926 INFO L895 garLoopResultBuilder]: At program point L9951-1(line 9951) the Hoare annotation is: (= 1 |ULTIMATE.start_aws_hash_string_#t~ret1265#1|) [2022-11-18 20:55:37,926 INFO L895 garLoopResultBuilder]: At program point L9945(line 9945) the Hoare annotation is: false [2022-11-18 20:55:37,926 INFO L895 garLoopResultBuilder]: At program point L9945-1(line 9945) the Hoare annotation is: false [2022-11-18 20:55:37,926 INFO L899 garLoopResultBuilder]: For program point L9945-2(line 9945) no Hoare annotation was computed. [2022-11-18 20:55:37,927 INFO L902 garLoopResultBuilder]: At program point L10247(line 10247) the Hoare annotation is: true [2022-11-18 20:55:37,927 INFO L899 garLoopResultBuilder]: For program point L10247-1(line 10247) no Hoare annotation was computed. [2022-11-18 20:55:37,927 INFO L899 garLoopResultBuilder]: For program point L9950-1(line 9950) no Hoare annotation was computed. [2022-11-18 20:55:37,927 INFO L895 garLoopResultBuilder]: At program point L9950-2(line 9950) the Hoare annotation is: false [2022-11-18 20:55:37,927 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:55:37,927 INFO L899 garLoopResultBuilder]: For program point L9950-3(line 9950) no Hoare annotation was computed. [2022-11-18 20:55:37,928 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:55:37,928 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:55:37,928 INFO L895 garLoopResultBuilder]: At program point L9950(line 9950) the Hoare annotation is: false [2022-11-18 20:55:37,928 INFO L902 garLoopResultBuilder]: At program point L9944(lines 9944 9952) the Hoare annotation is: true [2022-11-18 20:55:37,928 INFO L902 garLoopResultBuilder]: At program point L10250(line 10250) the Hoare annotation is: true [2022-11-18 20:55:37,929 INFO L899 garLoopResultBuilder]: For program point L10246(lines 10246 10249) no Hoare annotation was computed. [2022-11-18 20:55:37,929 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-11-18 20:55:37,929 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-11-18 20:55:37,929 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-11-18 20:55:37,929 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-11-18 20:55:37,929 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-11-18 20:55:37,930 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-11-18 20:55:37,933 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-11-18 20:55:37,935 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:55:37,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:55:37 BoogieIcfgContainer [2022-11-18 20:55:37,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:55:37,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:55:37,974 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:55:37,974 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:55:37,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:54:43" (3/4) ... [2022-11-18 20:55:37,978 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:55:37,985 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2022-11-18 20:55:37,985 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-11-18 20:55:37,985 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure hashlittle2 [2022-11-18 20:55:37,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-11-18 20:55:37,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-11-18 20:55:37,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_bytes [2022-11-18 20:55:37,986 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-18 20:55:37,987 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-18 20:55:37,987 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2022-11-18 20:55:37,987 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2022-11-18 20:55:38,007 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 127 nodes and edges [2022-11-18 20:55:38,008 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2022-11-18 20:55:38,009 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-18 20:55:38,010 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-18 20:55:38,012 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-18 20:55:38,013 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 20:55:38,014 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:55:38,015 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:55:38,055 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result + 1 <= unknown-#StackHeapBarrier-unknown && !(\old(max_size) == 32)) && !(str == 0)) && str == 0) && !(\result == 0)) && (((unknown-#memory_int-unknown[\result][\result + -18446744073709551600 + unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616] == 0 && 9223372036854775808 + 18446744073709551616 * (unknown-#memory_int-unknown[\result][\result + 8] / 18446744073709551616) <= unknown-#memory_int-unknown[\result][\result + 8]) || (18446744073709551616 + (-9223372036854775808 + unknown-#memory_int-unknown[\result][\result + 8]) / 18446744073709551616 * 18446744073709551616 <= unknown-#memory_int-unknown[\result][\result + 8] && unknown-#memory_int-unknown[\result][\result + 16 + unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616] == 0)) || 0 == unknown-#memory_int-unknown[\result][\result + 8])) && (\old(max_size) == max_size || 32 == max_size)) && str + 1 <= unknown-#StackHeapBarrier-unknown) && \result == 0 [2022-11-18 20:55:38,518 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:55:38,518 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:55:38,519 INFO L158 Benchmark]: Toolchain (without parser) took 62441.10ms. Allocated memory was 109.1MB in the beginning and 692.1MB in the end (delta: 583.0MB). Free memory was 62.7MB in the beginning and 366.8MB in the end (delta: -304.1MB). Peak memory consumption was 276.3MB. Max. memory is 16.1GB. [2022-11-18 20:55:38,519 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory was 79.9MB in the beginning and 79.8MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:55:38,520 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4064.03ms. Allocated memory was 109.1MB in the beginning and 174.1MB in the end (delta: 65.0MB). Free memory was 62.4MB in the beginning and 85.1MB in the end (delta: -22.7MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2022-11-18 20:55:38,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 248.87ms. Allocated memory is still 174.1MB. Free memory was 85.1MB in the beginning and 74.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 20:55:38,520 INFO L158 Benchmark]: Boogie Preprocessor took 166.09ms. Allocated memory is still 174.1MB. Free memory was 74.9MB in the beginning and 112.0MB in the end (delta: -37.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 20:55:38,521 INFO L158 Benchmark]: RCFGBuilder took 2904.97ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 112.0MB in the beginning and 106.9MB in the end (delta: 5.1MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. [2022-11-18 20:55:38,521 INFO L158 Benchmark]: TraceAbstraction took 54505.36ms. Allocated memory was 209.7MB in the beginning and 692.1MB in the end (delta: 482.3MB). Free memory was 106.9MB in the beginning and 491.6MB in the end (delta: -384.7MB). Peak memory consumption was 99.7MB. Max. memory is 16.1GB. [2022-11-18 20:55:38,522 INFO L158 Benchmark]: Witness Printer took 544.57ms. Allocated memory is still 692.1MB. Free memory was 491.6MB in the beginning and 366.8MB in the end (delta: 124.8MB). Peak memory consumption was 121.6MB. Max. memory is 16.1GB. [2022-11-18 20:55:38,523 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory was 79.9MB in the beginning and 79.8MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4064.03ms. Allocated memory was 109.1MB in the beginning and 174.1MB in the end (delta: 65.0MB). Free memory was 62.4MB in the beginning and 85.1MB in the end (delta: -22.7MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 248.87ms. Allocated memory is still 174.1MB. Free memory was 85.1MB in the beginning and 74.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 166.09ms. Allocated memory is still 174.1MB. Free memory was 74.9MB in the beginning and 112.0MB in the end (delta: -37.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 2904.97ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 112.0MB in the beginning and 106.9MB in the end (delta: 5.1MB). Peak memory consumption was 87.4MB. Max. memory is 16.1GB. * TraceAbstraction took 54505.36ms. Allocated memory was 209.7MB in the beginning and 692.1MB in the end (delta: 482.3MB). Free memory was 106.9MB in the beginning and 491.6MB in the end (delta: -384.7MB). Peak memory consumption was 99.7MB. Max. memory is 16.1GB. * Witness Printer took 544.57ms. Allocated memory is still 692.1MB. Free memory was 491.6MB in the beginning and 366.8MB in the end (delta: 124.8MB). Peak memory consumption was 121.6MB. 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, 144 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 54.4s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 546 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 529 mSDsluCounter, 11612 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 4750 IncrementalHoareTripleChecker+Unchecked, 10797 mSDsCounter, 114 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3996 IncrementalHoareTripleChecker+Invalid, 8860 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 114 mSolverCounterUnsat, 815 mSDtfsCounter, 3996 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 774 GetRequests, 486 SyntacticMatches, 4 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2854 ImplicationChecksByTransitivity, 22.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=169occurred in iteration=2, InterpolantAutomatonStates: 117, 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, 6 MinimizatonAttempts, 100 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 106 PreInvPairs, 120 NumberOfFragments, 402 HoareAnnotationTreeSize, 106 FomulaSimplifications, 25 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 34 FomulaSimplificationsInter, 118 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 37.4s InterpolantComputationTime, 1027 NumberOfCodeBlocks, 1027 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1016 ConstructedInterpolants, 78 QuantifiedInterpolants, 12256 SizeOfPredicates, 157 NumberOfNonLiveVariables, 10800 ConjunctsInSsa, 491 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 416/497 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: 8936]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8868]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8902]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8956]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8856]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6867]: Loop Invariant Derived loop invariant: (((((((\result + 1 <= unknown-#StackHeapBarrier-unknown && !(\old(max_size) == 32)) && !(str == 0)) && str == 0) && !(\result == 0)) && (((unknown-#memory_int-unknown[\result][\result + -18446744073709551600 + unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616] == 0 && 9223372036854775808 + 18446744073709551616 * (unknown-#memory_int-unknown[\result][\result + 8] / 18446744073709551616) <= unknown-#memory_int-unknown[\result][\result + 8]) || (18446744073709551616 + (-9223372036854775808 + unknown-#memory_int-unknown[\result][\result + 8]) / 18446744073709551616 * 18446744073709551616 <= unknown-#memory_int-unknown[\result][\result + 8] && unknown-#memory_int-unknown[\result][\result + 16 + unknown-#memory_int-unknown[\result][\result + 8] % 18446744073709551616] == 0)) || 0 == unknown-#memory_int-unknown[\result][\result + 8])) && (\old(max_size) == max_size || 32 == max_size)) && str + 1 <= unknown-#StackHeapBarrier-unknown) && \result == 0 - InvariantResult [Line: 10250]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9944]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9951]: Loop Invariant Derived loop invariant: (((!(12 < unknown-#memory_int-unknown[str][str + 8] % 18446744073709551616) && !(str == 0)) && !(item == 0)) && str == 0) && unknown-#memory_int-unknown[str][str + 16 + unknown-#memory_int-unknown[str][str + 8] % 18446744073709551616] % 256 == 0 - InvariantResult [Line: 8890]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-18 20:55:38,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_837871e3-f4c1-4657-8b5c-df6696e25c05/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE