./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN --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 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 --- 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-6b4ec56 [2022-11-20 12:05:26,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:05:26,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:05:26,987 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:05:26,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:05:26,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:05:26,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:05:26,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:05:26,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:05:26,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:05:26,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:05:27,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:05:27,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:05:27,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:05:27,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:05:27,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:05:27,018 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:05:27,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:05:27,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:05:27,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:05:27,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:05:27,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:05:27,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:05:27,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:05:27,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:05:27,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:05:27,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:05:27,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:05:27,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:05:27,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:05:27,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:05:27,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:05:27,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:05:27,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:05:27,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:05:27,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:05:27,053 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:05:27,053 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:05:27,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:05:27,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:05:27,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:05:27,059 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:05:27,099 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:05:27,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:05:27,100 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:05:27,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:05:27,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:05:27,101 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:05:27,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:05:27,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:05:27,102 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:05:27,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:05:27,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:05:27,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:05:27,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:05:27,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:05:27,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:05:27,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:05:27,104 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:05:27,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:05:27,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:05:27,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:05:27,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:05:27,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:05:27,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:05:27,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:05:27,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:05:27,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:05:27,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:05:27,106 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:05:27,107 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:05:27,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:05:27,107 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_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 [2022-11-20 12:05:27,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:05:27,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:05:27,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:05:27,398 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:05:27,398 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:05:27,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2022-11-20 12:05:30,411 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:05:31,049 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:05:31,050 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2022-11-20 12:05:31,095 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/data/320205447/25dbe423e44b40efbba750796ed7409f/FLAG7adf770c1 [2022-11-20 12:05:31,113 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/data/320205447/25dbe423e44b40efbba750796ed7409f [2022-11-20 12:05:31,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:05:31,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:05:31,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:05:31,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:05:31,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:05:31,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:05:31" (1/1) ... [2022-11-20 12:05:31,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ee0770a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:31, skipping insertion in model container [2022-11-20 12:05:31,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:05:31" (1/1) ... [2022-11-20 12:05:31,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:05:31,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:05:31,517 WARN L237 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_07213ff6-512a-4ced-9609-cb912ccf9144/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2022-11-20 12:05:31,525 WARN L237 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_07213ff6-512a-4ced-9609-cb912ccf9144/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2022-11-20 12:05:32,628 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:32,629 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:32,629 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:32,630 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:32,632 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:32,646 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:32,652 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:32,654 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:32,655 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:33,114 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:05:33,115 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:05:33,117 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:05:33,118 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:05:33,119 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:05:33,120 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:05:33,121 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:05:33,121 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:05:33,122 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:05:33,122 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:05:33,288 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 12:05:33,387 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:33,387 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:33,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:05:33,515 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:05:33,545 WARN L237 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_07213ff6-512a-4ced-9609-cb912ccf9144/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2022-11-20 12:05:33,546 WARN L237 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_07213ff6-512a-4ced-9609-cb912ccf9144/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2022-11-20 12:05:33,602 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:33,612 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:33,613 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:33,614 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:33,616 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:33,628 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:33,632 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:33,634 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:33,637 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:33,666 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:05:33,667 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:05:33,668 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:05:33,668 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:05:33,669 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:05:33,670 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:05:33,670 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:05:33,671 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:05:33,671 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:05:33,672 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:05:33,690 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 12:05:33,759 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:33,759 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:05:33,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:05:34,035 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:05:34,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:34 WrapperNode [2022-11-20 12:05:34,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:05:34,037 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:05:34,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:05:34,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:05:34,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:34" (1/1) ... [2022-11-20 12:05:34,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:34" (1/1) ... [2022-11-20 12:05:34,212 INFO L138 Inliner]: procedures = 690, calls = 2630, calls flagged for inlining = 60, calls inlined = 9, statements flattened = 946 [2022-11-20 12:05:34,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:05:34,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:05:34,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:05:34,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:05:34,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:34" (1/1) ... [2022-11-20 12:05:34,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:34" (1/1) ... [2022-11-20 12:05:34,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:34" (1/1) ... [2022-11-20 12:05:34,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:34" (1/1) ... [2022-11-20 12:05:34,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:34" (1/1) ... [2022-11-20 12:05:34,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:34" (1/1) ... [2022-11-20 12:05:34,286 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:34" (1/1) ... [2022-11-20 12:05:34,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:34" (1/1) ... [2022-11-20 12:05:34,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:05:34,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:05:34,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:05:34,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:05:34,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:34" (1/1) ... [2022-11-20 12:05:34,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:05:34,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:34,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:05:34,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:05:34,442 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2022-11-20 12:05:34,442 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2022-11-20 12:05:34,442 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-20 12:05:34,443 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-20 12:05:34,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:05:34,443 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-20 12:05:34,443 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-20 12:05:34,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2022-11-20 12:05:34,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-20 12:05:34,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 12:05:34,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:05:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 12:05:34,445 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 12:05:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 12:05:34,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 12:05:34,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:05:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:05:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:05:34,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:05:34,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:05:34,447 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-20 12:05:34,447 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-20 12:05:34,448 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-20 12:05:34,448 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-20 12:05:34,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 12:05:34,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 12:05:34,449 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 12:05:34,449 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 12:05:34,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:05:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:05:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:05:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-20 12:05:34,450 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-20 12:05:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:05:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2022-11-20 12:05:34,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:05:34,829 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:05:34,831 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:05:36,550 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:05:36,563 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:05:36,563 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:05:36,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:05:36 BoogieIcfgContainer [2022-11-20 12:05:36,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:05:36,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:05:36,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:05:36,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:05:36,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:05:31" (1/3) ... [2022-11-20 12:05:36,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@278fdef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:05:36, skipping insertion in model container [2022-11-20 12:05:36,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:05:34" (2/3) ... [2022-11-20 12:05:36,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@278fdef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:05:36, skipping insertion in model container [2022-11-20 12:05:36,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:05:36" (3/3) ... [2022-11-20 12:05:36,584 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_harness.i [2022-11-20 12:05:36,603 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:05:36,604 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:05:36,678 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:05:36,691 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;@1f7f5909, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:05:36,692 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:05:36,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 84 states have internal predecessors, (106), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-20 12:05:36,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-20 12:05:36,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:36,714 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:36,715 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:36,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:36,723 INFO L85 PathProgramCache]: Analyzing trace with hash 896154906, now seen corresponding path program 1 times [2022-11-20 12:05:36,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:36,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326719181] [2022-11-20 12:05:36,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:36,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:37,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:05:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:37,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:05:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:37,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:05:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:37,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 12:05:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:37,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 12:05:37,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:37,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:05:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:37,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-20 12:05:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:37,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 12:05:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:37,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 12:05:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:37,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 12:05:37,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:37,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:05:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:37,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 12:05:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:37,579 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-20 12:05:37,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:37,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326719181] [2022-11-20 12:05:37,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326719181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:37,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:05:37,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:05:37,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259756869] [2022-11-20 12:05:37,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:37,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:05:37,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:37,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:05:37,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:05:37,643 INFO L87 Difference]: Start difference. First operand has 128 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 84 states have internal predecessors, (106), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 12:05:38,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:38,097 INFO L93 Difference]: Finished difference Result 253 states and 367 transitions. [2022-11-20 12:05:38,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:05:38,102 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) Word has length 84 [2022-11-20 12:05:38,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:38,112 INFO L225 Difference]: With dead ends: 253 [2022-11-20 12:05:38,113 INFO L226 Difference]: Without dead ends: 118 [2022-11-20 12:05:38,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:05:38,132 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 44 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:38,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 178 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:05:38,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-20 12:05:38,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-11-20 12:05:38,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 75 states have (on average 1.2533333333333334) internal successors, (94), 77 states have internal predecessors, (94), 34 states have call successors, (34), 9 states have call predecessors, (34), 8 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-11-20 12:05:38,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 159 transitions. [2022-11-20 12:05:38,192 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 159 transitions. Word has length 84 [2022-11-20 12:05:38,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:38,192 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 159 transitions. [2022-11-20 12:05:38,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 1 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 12:05:38,193 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 159 transitions. [2022-11-20 12:05:38,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-20 12:05:38,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:38,196 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:38,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:05:38,197 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:38,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:38,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1815225614, now seen corresponding path program 1 times [2022-11-20 12:05:38,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:38,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391790209] [2022-11-20 12:05:38,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:38,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:38,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:05:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:38,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:05:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:38,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:05:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:38,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 12:05:38,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:39,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-20 12:05:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:39,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-20 12:05:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-20 12:05:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:39,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-20 12:05:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:39,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-20 12:05:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-20 12:05:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:39,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-20 12:05:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:39,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-20 12:05:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:39,198 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-20 12:05:39,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:39,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391790209] [2022-11-20 12:05:39,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391790209] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:05:39,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33837163] [2022-11-20 12:05:39,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:39,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:39,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:39,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:39,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 12:05:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:39,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 2594 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-20 12:05:39,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:40,015 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-20 12:05:40,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:40,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33837163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:40,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:05:40,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2022-11-20 12:05:40,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630734970] [2022-11-20 12:05:40,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:40,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:05:40,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:40,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:05:40,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:05:40,023 INFO L87 Difference]: Start difference. First operand 118 states and 159 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 12:05:40,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:40,253 INFO L93 Difference]: Finished difference Result 220 states and 305 transitions. [2022-11-20 12:05:40,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:05:40,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 84 [2022-11-20 12:05:40,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:40,261 INFO L225 Difference]: With dead ends: 220 [2022-11-20 12:05:40,261 INFO L226 Difference]: Without dead ends: 121 [2022-11-20 12:05:40,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-11-20 12:05:40,265 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 182 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:40,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 449 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:05:40,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-20 12:05:40,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-11-20 12:05:40,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 77 states have (on average 1.2467532467532467) internal successors, (96), 80 states have internal predecessors, (96), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (37), 31 states have call predecessors, (37), 31 states have call successors, (37) [2022-11-20 12:05:40,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 167 transitions. [2022-11-20 12:05:40,286 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 167 transitions. Word has length 84 [2022-11-20 12:05:40,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:40,287 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 167 transitions. [2022-11-20 12:05:40,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 12:05:40,288 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 167 transitions. [2022-11-20 12:05:40,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-20 12:05:40,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:40,290 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:40,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:40,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-20 12:05:40,502 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:40,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:40,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1294869363, now seen corresponding path program 1 times [2022-11-20 12:05:40,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:40,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991505424] [2022-11-20 12:05:40,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:40,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:41,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:05:41,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:41,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:05:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:41,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:05:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:41,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 12:05:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:41,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:05:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:41,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:05:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:41,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 12:05:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:41,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-20 12:05:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:41,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-20 12:05:41,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:41,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-20 12:05:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:41,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-20 12:05:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:41,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-20 12:05:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:41,403 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-20 12:05:41,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:41,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991505424] [2022-11-20 12:05:41,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991505424] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:05:41,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310606931] [2022-11-20 12:05:41,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:41,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:41,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:41,406 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:41,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 12:05:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:41,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 2599 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 12:05:41,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:42,150 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 12:05:42,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:05:42,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1310606931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:05:42,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 12:05:42,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2022-11-20 12:05:42,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383956463] [2022-11-20 12:05:42,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:05:42,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:05:42,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:05:42,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:05:42,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:05:42,153 INFO L87 Difference]: Start difference. First operand 121 states and 167 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-20 12:05:42,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:05:42,551 INFO L93 Difference]: Finished difference Result 211 states and 293 transitions. [2022-11-20 12:05:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:05:42,552 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 86 [2022-11-20 12:05:42,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:05:42,554 INFO L225 Difference]: With dead ends: 211 [2022-11-20 12:05:42,554 INFO L226 Difference]: Without dead ends: 121 [2022-11-20 12:05:42,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2022-11-20 12:05:42,556 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 209 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:05:42,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 490 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:05:42,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-20 12:05:42,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-11-20 12:05:42,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 77 states have (on average 1.2467532467532467) internal successors, (96), 80 states have internal predecessors, (96), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2022-11-20 12:05:42,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 164 transitions. [2022-11-20 12:05:42,576 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 164 transitions. Word has length 86 [2022-11-20 12:05:42,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:05:42,578 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 164 transitions. [2022-11-20 12:05:42,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-20 12:05:42,579 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 164 transitions. [2022-11-20 12:05:42,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-20 12:05:42,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:05:42,588 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:05:42,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:05:42,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:42,799 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:05:42,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:05:42,800 INFO L85 PathProgramCache]: Analyzing trace with hash 757728024, now seen corresponding path program 2 times [2022-11-20 12:05:42,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:05:42,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170159816] [2022-11-20 12:05:42,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:05:42,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:05:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:43,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 12:05:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:43,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-20 12:05:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:43,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-20 12:05:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:43,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-20 12:05:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:43,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-20 12:05:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:43,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-20 12:05:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:43,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-20 12:05:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:43,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-20 12:05:43,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:43,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-20 12:05:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:43,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-20 12:05:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:43,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-20 12:05:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:43,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-20 12:05:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:05:43,586 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-20 12:05:43,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:05:43,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170159816] [2022-11-20 12:05:43,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170159816] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:05:43,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642679014] [2022-11-20 12:05:43,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:05:43,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:05:43,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:05:43,588 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 12:05:43,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 12:05:44,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:05:44,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:05:44,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 2604 conjuncts, 260 conjunts are in the unsatisfiable core [2022-11-20 12:05:44,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:05:47,750 INFO L217 Elim1Store]: Index analysis took 176 ms [2022-11-20 12:05:50,264 INFO L321 Elim1Store]: treesize reduction 496, result has 50.1 percent of original size [2022-11-20 12:05:50,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 125 select indices, 125 select index equivalence classes, 7626 disjoint index pairs (out of 7750 index pairs), introduced 125 new quantified variables, introduced 124 case distinctions, treesize of input 626 treesize of output 872 [2022-11-20 12:06:10,463 WARN L718 sPolynomialRelations]: Constructing 2147483647(two to the power of 124 dual juncts. [2022-11-20 12:06:10,465 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-20 12:06:10,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:06:10,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 12:06:10,676 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.OutOfMemoryError: Requested array size exceeds VM limit at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:720) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildBoundConstraint(DualJunctionTir.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateConjuncts(DualJunctionTir.java:193) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne(DualJunctionTir.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminate(DualJunctionTir.java:126) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:627) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:606) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:528) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:332) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) [2022-11-20 12:06:10,679 INFO L158 Benchmark]: Toolchain (without parser) took 39561.94ms. Allocated memory was 182.5MB in the beginning and 612.4MB in the end (delta: 429.9MB). Free memory was 140.3MB in the beginning and 372.8MB in the end (delta: -232.5MB). Peak memory consumption was 394.3MB. Max. memory is 16.1GB. [2022-11-20 12:06:10,680 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:06:10,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2914.93ms. Allocated memory is still 182.5MB. Free memory was 139.8MB in the beginning and 89.3MB in the end (delta: 50.5MB). Peak memory consumption was 102.3MB. Max. memory is 16.1GB. [2022-11-20 12:06:10,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 175.88ms. Allocated memory is still 182.5MB. Free memory was 89.3MB in the beginning and 76.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 12:06:10,681 INFO L158 Benchmark]: Boogie Preprocessor took 102.44ms. Allocated memory is still 182.5MB. Free memory was 76.7MB in the beginning and 69.2MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 12:06:10,681 INFO L158 Benchmark]: RCFGBuilder took 2249.55ms. Allocated memory was 182.5MB in the beginning and 243.3MB in the end (delta: 60.8MB). Free memory was 69.2MB in the beginning and 166.5MB in the end (delta: -97.3MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. [2022-11-20 12:06:10,681 INFO L158 Benchmark]: TraceAbstraction took 34109.36ms. Allocated memory was 243.3MB in the beginning and 612.4MB in the end (delta: 369.1MB). Free memory was 165.4MB in the beginning and 372.8MB in the end (delta: -207.3MB). Peak memory consumption was 358.0MB. Max. memory is 16.1GB. [2022-11-20 12:06:10,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 121.6MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2914.93ms. Allocated memory is still 182.5MB. Free memory was 139.8MB in the beginning and 89.3MB in the end (delta: 50.5MB). Peak memory consumption was 102.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 175.88ms. Allocated memory is still 182.5MB. Free memory was 89.3MB in the beginning and 76.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 102.44ms. Allocated memory is still 182.5MB. Free memory was 76.7MB in the beginning and 69.2MB in the end (delta: 7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2249.55ms. Allocated memory was 182.5MB in the beginning and 243.3MB in the end (delta: 60.8MB). Free memory was 69.2MB in the beginning and 166.5MB in the end (delta: -97.3MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB. * TraceAbstraction took 34109.36ms. Allocated memory was 243.3MB in the beginning and 612.4MB in the end (delta: 369.1MB). Free memory was 165.4MB in the beginning and 372.8MB in the end (delta: -207.3MB). Peak memory consumption was 358.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: OutOfMemoryError: Requested array size exceeds VM limit de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: OutOfMemoryError: Requested array size exceeds VM limit: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir$ExplicitLhsPolynomialRelations.buildCorrespondingFiniteJunctionForAntiDer(DualJunctionTir.java:720) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-20 12:06:10,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN --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 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 --- 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-6b4ec56 [2022-11-20 12:06:13,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:06:13,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:06:13,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:06:13,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:06:13,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:06:13,257 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:06:13,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:06:13,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:06:13,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:06:13,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:06:13,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:06:13,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:06:13,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:06:13,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:06:13,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:06:13,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:06:13,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:06:13,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:06:13,296 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:06:13,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:06:13,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:06:13,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:06:13,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:06:13,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:06:13,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:06:13,318 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:06:13,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:06:13,320 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:06:13,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:06:13,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:06:13,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:06:13,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:06:13,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:06:13,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:06:13,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:06:13,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:06:13,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:06:13,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:06:13,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:06:13,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:06:13,350 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:06:13,389 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:06:13,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:06:13,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:06:13,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:06:13,392 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:06:13,393 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:06:13,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:06:13,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:06:13,394 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:06:13,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:06:13,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:06:13,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:06:13,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:06:13,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:06:13,397 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:06:13,397 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:06:13,397 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:06:13,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:06:13,398 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:06:13,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:06:13,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:06:13,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:06:13,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:06:13,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:06:13,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:06:13,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:06:13,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:06:13,401 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:06:13,401 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:06:13,401 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:06:13,402 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:06:13,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:06:13,402 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:06:13,403 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 [2022-11-20 12:06:13,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:06:13,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:06:13,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:06:13,862 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:06:13,863 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:06:13,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2022-11-20 12:06:17,046 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:06:17,552 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:06:17,553 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2022-11-20 12:06:17,594 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/data/09928fb41/b4bf5298afcb414a88f65d7989045e90/FLAG6d56d9a39 [2022-11-20 12:06:17,619 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/data/09928fb41/b4bf5298afcb414a88f65d7989045e90 [2022-11-20 12:06:17,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:06:17,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:06:17,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:06:17,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:06:17,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:06:17,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:06:17" (1/1) ... [2022-11-20 12:06:17,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ea455f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:17, skipping insertion in model container [2022-11-20 12:06:17,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:06:17" (1/1) ... [2022-11-20 12:06:17,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:06:17,788 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:06:18,110 WARN L237 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_07213ff6-512a-4ced-9609-cb912ccf9144/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2022-11-20 12:06:18,118 WARN L237 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_07213ff6-512a-4ced-9609-cb912ccf9144/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2022-11-20 12:06:19,047 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:19,047 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:19,048 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:19,049 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:19,050 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:19,066 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:19,067 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:19,069 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:19,070 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:19,532 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:06:19,534 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:06:19,537 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:06:19,540 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:06:19,547 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:06:19,548 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:06:19,552 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:06:19,553 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:06:19,556 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:06:19,558 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:06:19,754 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 12:06:19,851 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:19,852 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:19,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:06:20,007 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-20 12:06:20,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:06:20,050 WARN L237 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_07213ff6-512a-4ced-9609-cb912ccf9144/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2022-11-20 12:06:20,051 WARN L237 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_07213ff6-512a-4ced-9609-cb912ccf9144/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2022-11-20 12:06:20,109 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,110 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,110 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,111 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,111 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,119 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,119 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,121 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,121 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,163 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:06:20,164 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:06:20,165 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:06:20,166 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:06:20,167 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:06:20,168 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:06:20,168 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:06:20,169 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:06:20,170 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:06:20,170 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:06:20,195 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 12:06:20,256 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,256 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:06:20,359 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:06:20,383 WARN L237 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_07213ff6-512a-4ced-9609-cb912ccf9144/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2022-11-20 12:06:20,396 WARN L237 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_07213ff6-512a-4ced-9609-cb912ccf9144/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2022-11-20 12:06:20,433 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,434 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,434 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,435 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,437 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,443 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,444 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,445 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,445 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,475 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-20 12:06:20,477 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-20 12:06:20,478 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-20 12:06:20,479 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-20 12:06:20,480 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-20 12:06:20,480 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-20 12:06:20,481 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-20 12:06:20,482 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-20 12:06:20,482 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-20 12:06:20,483 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-20 12:06:20,501 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-20 12:06:20,582 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,582 WARN L1569 CHandler]: Possible shadowing of function index [2022-11-20 12:06:20,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:06:20,985 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:06:20,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:20 WrapperNode [2022-11-20 12:06:20,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:06:20,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:06:20,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:06:20,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:06:20,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:20" (1/1) ... [2022-11-20 12:06:21,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:20" (1/1) ... [2022-11-20 12:06:21,185 INFO L138 Inliner]: procedures = 710, calls = 2630, calls flagged for inlining = 60, calls inlined = 9, statements flattened = 938 [2022-11-20 12:06:21,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:06:21,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:06:21,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:06:21,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:06:21,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:20" (1/1) ... [2022-11-20 12:06:21,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:20" (1/1) ... [2022-11-20 12:06:21,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:20" (1/1) ... [2022-11-20 12:06:21,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:20" (1/1) ... [2022-11-20 12:06:21,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:20" (1/1) ... [2022-11-20 12:06:21,300 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:20" (1/1) ... [2022-11-20 12:06:21,342 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:20" (1/1) ... [2022-11-20 12:06:21,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:20" (1/1) ... [2022-11-20 12:06:21,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:06:21,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:06:21,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:06:21,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:06:21,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:20" (1/1) ... [2022-11-20 12:06:21,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:06:21,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:06:21,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:06:21,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:06:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2022-11-20 12:06:21,444 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2022-11-20 12:06:21,444 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-20 12:06:21,445 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-20 12:06:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:06:21,445 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-20 12:06:21,445 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-20 12:06:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 12:06:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 12:06:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-20 12:06:21,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2022-11-20 12:06:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-20 12:06:21,447 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-20 12:06:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-20 12:06:21,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-20 12:06:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 12:06:21,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:06:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:06:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-20 12:06:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-20 12:06:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-20 12:06:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-20 12:06:21,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:06:21,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:06:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-20 12:06:21,449 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-20 12:06:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-20 12:06:21,449 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-20 12:06:21,450 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-20 12:06:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-20 12:06:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-20 12:06:21,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-20 12:06:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-20 12:06:21,451 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-20 12:06:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:06:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:06:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-20 12:06:21,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-20 12:06:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 12:06:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2022-11-20 12:06:21,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2022-11-20 12:06:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2022-11-20 12:06:21,453 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-20 12:06:21,457 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-20 12:06:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-20 12:06:21,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-20 12:06:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-20 12:06:21,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-20 12:06:21,822 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:06:21,829 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:06:28,383 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:06:28,391 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:06:28,391 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 12:06:28,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:06:28 BoogieIcfgContainer [2022-11-20 12:06:28,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:06:28,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:06:28,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:06:28,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:06:28,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:06:17" (1/3) ... [2022-11-20 12:06:28,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688e9b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:06:28, skipping insertion in model container [2022-11-20 12:06:28,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:06:20" (2/3) ... [2022-11-20 12:06:28,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688e9b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:06:28, skipping insertion in model container [2022-11-20 12:06:28,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:06:28" (3/3) ... [2022-11-20 12:06:28,403 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_harness.i [2022-11-20 12:06:28,422 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:06:28,423 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:06:28,494 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:06:28,499 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;@199e1a8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:06:28,499 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:06:28,504 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 80 states have (on average 1.2625) internal successors, (101), 81 states have internal predecessors, (101), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2022-11-20 12:06:28,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-20 12:06:28,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:06:28,517 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:06:28,518 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:06:28,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:06:28,523 INFO L85 PathProgramCache]: Analyzing trace with hash -132459702, now seen corresponding path program 1 times [2022-11-20 12:06:28,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:06:28,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1639535485] [2022-11-20 12:06:28,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:06:28,544 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:28,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:06:28,545 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:06:28,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 12:06:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:06:29,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 1531 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 12:06:29,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:06:29,588 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-20 12:06:29,588 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:06:29,589 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:06:29,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1639535485] [2022-11-20 12:06:29,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1639535485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:06:29,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:06:29,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:06:29,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089289182] [2022-11-20 12:06:29,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:06:29,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 12:06:29,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:06:29,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 12:06:29,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:06:29,630 INFO L87 Difference]: Start difference. First operand has 125 states, 80 states have (on average 1.2625) internal successors, (101), 81 states have internal predecessors, (101), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 12:06:29,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:06:29,674 INFO L93 Difference]: Finished difference Result 247 states and 357 transitions. [2022-11-20 12:06:29,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 12:06:29,676 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 84 [2022-11-20 12:06:29,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:06:29,684 INFO L225 Difference]: With dead ends: 247 [2022-11-20 12:06:29,685 INFO L226 Difference]: Without dead ends: 115 [2022-11-20 12:06:29,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 12:06:29,692 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:06:29,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:06:29,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-11-20 12:06:29,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-11-20 12:06:29,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 74 states have internal predecessors, (89), 34 states have call successors, (34), 9 states have call predecessors, (34), 8 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-11-20 12:06:29,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2022-11-20 12:06:29,744 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 84 [2022-11-20 12:06:29,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:06:29,744 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2022-11-20 12:06:29,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 12:06:29,745 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2022-11-20 12:06:29,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-20 12:06:29,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:06:29,749 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:06:29,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:06:29,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:29,972 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:06:29,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:06:29,973 INFO L85 PathProgramCache]: Analyzing trace with hash 786611006, now seen corresponding path program 1 times [2022-11-20 12:06:29,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:06:29,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342038365] [2022-11-20 12:06:29,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:06:29,977 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:29,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:06:29,979 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:06:30,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 12:06:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:06:31,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 1531 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 12:06:31,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:06:31,270 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-20 12:06:31,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:06:31,275 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:06:31,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342038365] [2022-11-20 12:06:31,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342038365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:06:31,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:06:31,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:06:31,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230183095] [2022-11-20 12:06:31,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:06:31,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:06:31,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:06:31,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:06:31,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:06:31,281 INFO L87 Difference]: Start difference. First operand 115 states and 154 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 12:06:31,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:06:31,596 INFO L93 Difference]: Finished difference Result 214 states and 295 transitions. [2022-11-20 12:06:31,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:06:31,601 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 84 [2022-11-20 12:06:31,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:06:31,604 INFO L225 Difference]: With dead ends: 214 [2022-11-20 12:06:31,604 INFO L226 Difference]: Without dead ends: 118 [2022-11-20 12:06:31,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:06:31,606 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 39 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:06:31,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 369 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 12:06:31,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-20 12:06:31,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-11-20 12:06:31,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 77 states have internal predecessors, (91), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (37), 31 states have call predecessors, (37), 31 states have call successors, (37) [2022-11-20 12:06:31,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 162 transitions. [2022-11-20 12:06:31,642 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 162 transitions. Word has length 84 [2022-11-20 12:06:31,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:06:31,643 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 162 transitions. [2022-11-20 12:06:31,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-20 12:06:31,644 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 162 transitions. [2022-11-20 12:06:31,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-20 12:06:31,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:06:31,657 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:06:31,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:06:31,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:31,882 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:06:31,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:06:31,883 INFO L85 PathProgramCache]: Analyzing trace with hash -89717469, now seen corresponding path program 1 times [2022-11-20 12:06:31,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:06:31,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141001902] [2022-11-20 12:06:31,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:06:31,887 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:31,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:06:31,898 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:06:31,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 12:06:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:06:33,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 1535 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:06:33,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:06:33,304 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-20 12:06:33,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:06:33,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:06:33,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141001902] [2022-11-20 12:06:33,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141001902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:06:33,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:06:33,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 12:06:33,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331316150] [2022-11-20 12:06:33,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:06:33,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 12:06:33,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:06:33,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 12:06:33,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 12:06:33,308 INFO L87 Difference]: Start difference. First operand 118 states and 162 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-20 12:06:33,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:06:33,733 INFO L93 Difference]: Finished difference Result 205 states and 283 transitions. [2022-11-20 12:06:33,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:06:33,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 86 [2022-11-20 12:06:33,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:06:33,740 INFO L225 Difference]: With dead ends: 205 [2022-11-20 12:06:33,740 INFO L226 Difference]: Without dead ends: 118 [2022-11-20 12:06:33,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:06:33,742 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 72 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-20 12:06:33,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 579 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-20 12:06:33,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-20 12:06:33,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-11-20 12:06:33,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 77 states have internal predecessors, (91), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2022-11-20 12:06:33,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 159 transitions. [2022-11-20 12:06:33,766 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 159 transitions. Word has length 86 [2022-11-20 12:06:33,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:06:33,768 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 159 transitions. [2022-11-20 12:06:33,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 4 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-20 12:06:33,769 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 159 transitions. [2022-11-20 12:06:33,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-20 12:06:33,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:06:33,772 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:06:33,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:06:33,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:33,988 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:06:33,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:06:33,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1258406584, now seen corresponding path program 2 times [2022-11-20 12:06:33,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:06:33,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052780983] [2022-11-20 12:06:33,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:06:33,992 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:33,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:06:33,993 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:06:33,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 12:06:39,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:06:39,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:06:39,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 1539 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:06:39,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:06:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-20 12:06:40,076 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:06:40,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:06:40,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052780983] [2022-11-20 12:06:40,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052780983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:06:40,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:06:40,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 12:06:40,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70075605] [2022-11-20 12:06:40,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:06:40,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:06:40,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:06:40,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:06:40,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:06:40,078 INFO L87 Difference]: Start difference. First operand 118 states and 159 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-20 12:06:42,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:06:42,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:06:42,776 INFO L93 Difference]: Finished difference Result 220 states and 302 transitions. [2022-11-20 12:06:42,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:06:42,780 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 88 [2022-11-20 12:06:42,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:06:42,784 INFO L225 Difference]: With dead ends: 220 [2022-11-20 12:06:42,784 INFO L226 Difference]: Without dead ends: 138 [2022-11-20 12:06:42,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:06:42,786 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 81 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-20 12:06:42,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 837 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 120 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-11-20 12:06:42,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-11-20 12:06:42,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 119. [2022-11-20 12:06:42,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 74 states have (on average 1.2297297297297298) internal successors, (91), 78 states have internal predecessors, (91), 35 states have call successors, (35), 9 states have call predecessors, (35), 9 states have return successors, (34), 31 states have call predecessors, (34), 32 states have call successors, (34) [2022-11-20 12:06:42,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 160 transitions. [2022-11-20 12:06:42,826 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 160 transitions. Word has length 88 [2022-11-20 12:06:42,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:06:42,826 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 160 transitions. [2022-11-20 12:06:42,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-20 12:06:42,827 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 160 transitions. [2022-11-20 12:06:42,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-20 12:06:42,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:06:42,829 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:06:42,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-20 12:06:43,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:43,052 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:06:43,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:06:43,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1135513054, now seen corresponding path program 1 times [2022-11-20 12:06:43,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:06:43,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531970756] [2022-11-20 12:06:43,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:06:43,055 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:43,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:06:43,056 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:06:43,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-20 12:06:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:06:44,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 1640 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-20 12:06:44,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:06:44,434 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-20 12:06:44,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:06:44,435 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:06:44,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531970756] [2022-11-20 12:06:44,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531970756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:06:44,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:06:44,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:06:44,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568986151] [2022-11-20 12:06:44,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:06:44,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:06:44,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:06:44,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:06:44,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:06:44,438 INFO L87 Difference]: Start difference. First operand 119 states and 160 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 12:06:44,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:06:44,607 INFO L93 Difference]: Finished difference Result 198 states and 265 transitions. [2022-11-20 12:06:44,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:06:44,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 91 [2022-11-20 12:06:44,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:06:44,613 INFO L225 Difference]: With dead ends: 198 [2022-11-20 12:06:44,613 INFO L226 Difference]: Without dead ends: 120 [2022-11-20 12:06:44,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:06:44,615 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:06:44,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 301 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:06:44,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-20 12:06:44,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-11-20 12:06:44,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 79 states have internal predecessors, (92), 35 states have call successors, (35), 9 states have call predecessors, (35), 9 states have return successors, (34), 31 states have call predecessors, (34), 32 states have call successors, (34) [2022-11-20 12:06:44,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 161 transitions. [2022-11-20 12:06:44,630 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 161 transitions. Word has length 91 [2022-11-20 12:06:44,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:06:44,631 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 161 transitions. [2022-11-20 12:06:44,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-20 12:06:44,631 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 161 transitions. [2022-11-20 12:06:44,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-20 12:06:44,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:06:44,632 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:06:44,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-20 12:06:44,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:44,848 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:06:44,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:06:44,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1722319068, now seen corresponding path program 1 times [2022-11-20 12:06:44,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:06:44,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1067735512] [2022-11-20 12:06:44,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:06:44,850 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:44,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:06:44,851 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:06:44,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-20 12:06:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:06:46,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-20 12:06:46,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:06:46,516 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-20 12:06:46,517 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:06:46,517 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:06:46,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1067735512] [2022-11-20 12:06:46,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1067735512] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:06:46,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:06:46,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 12:06:46,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634507177] [2022-11-20 12:06:46,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:06:46,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:06:46,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:06:46,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:06:46,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:06:46,519 INFO L87 Difference]: Start difference. First operand 120 states and 161 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-20 12:06:48,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:06:49,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:06:49,284 INFO L93 Difference]: Finished difference Result 215 states and 290 transitions. [2022-11-20 12:06:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-20 12:06:49,287 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) Word has length 91 [2022-11-20 12:06:49,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:06:49,289 INFO L225 Difference]: With dead ends: 215 [2022-11-20 12:06:49,289 INFO L226 Difference]: Without dead ends: 139 [2022-11-20 12:06:49,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:06:49,290 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 86 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-20 12:06:49,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 917 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 135 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-11-20 12:06:49,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-20 12:06:49,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 119. [2022-11-20 12:06:49,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 78 states have internal predecessors, (92), 34 states have call successors, (34), 9 states have call predecessors, (34), 9 states have return successors, (32), 31 states have call predecessors, (32), 31 states have call successors, (32) [2022-11-20 12:06:49,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 158 transitions. [2022-11-20 12:06:49,305 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 158 transitions. Word has length 91 [2022-11-20 12:06:49,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:06:49,306 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 158 transitions. [2022-11-20 12:06:49,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 5 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-20 12:06:49,307 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 158 transitions. [2022-11-20 12:06:49,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-20 12:06:49,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:06:49,308 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:06:49,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-20 12:06:49,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:49,525 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:06:49,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:06:49,525 INFO L85 PathProgramCache]: Analyzing trace with hash -751775534, now seen corresponding path program 1 times [2022-11-20 12:06:49,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:06:49,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425613284] [2022-11-20 12:06:49,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:06:49,528 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:49,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:06:49,529 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:06:49,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-20 12:06:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:06:50,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-20 12:06:50,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:06:51,091 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-20 12:06:51,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:06:51,092 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:06:51,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425613284] [2022-11-20 12:06:51,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425613284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:06:51,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:06:51,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 12:06:51,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087838413] [2022-11-20 12:06:51,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:06:51,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:06:51,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:06:51,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:06:51,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:06:51,095 INFO L87 Difference]: Start difference. First operand 119 states and 158 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-20 12:06:51,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:06:51,415 INFO L93 Difference]: Finished difference Result 131 states and 177 transitions. [2022-11-20 12:06:51,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:06:51,416 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 92 [2022-11-20 12:06:51,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:06:51,418 INFO L225 Difference]: With dead ends: 131 [2022-11-20 12:06:51,419 INFO L226 Difference]: Without dead ends: 129 [2022-11-20 12:06:51,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:06:51,420 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 17 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1023 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:06:51,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1023 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:06:51,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-11-20 12:06:51,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2022-11-20 12:06:51,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 81 states have (on average 1.2098765432098766) internal successors, (98), 85 states have internal predecessors, (98), 35 states have call successors, (35), 10 states have call predecessors, (35), 11 states have return successors, (41), 32 states have call predecessors, (41), 32 states have call successors, (41) [2022-11-20 12:06:51,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 174 transitions. [2022-11-20 12:06:51,446 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 174 transitions. Word has length 92 [2022-11-20 12:06:51,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:06:51,446 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 174 transitions. [2022-11-20 12:06:51,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2022-11-20 12:06:51,447 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 174 transitions. [2022-11-20 12:06:51,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-20 12:06:51,448 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:06:51,448 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:06:51,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-20 12:06:51,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:51,674 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:06:51,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:06:51,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1289038822, now seen corresponding path program 1 times [2022-11-20 12:06:51,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:06:51,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474786075] [2022-11-20 12:06:51,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:06:51,677 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:06:51,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:06:51,678 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:06:51,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-20 12:06:57,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:06:57,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 1556 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-20 12:06:57,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:06:57,424 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 [2022-11-20 12:07:01,416 INFO L321 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2022-11-20 12:07:01,416 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 1 case distinctions, treesize of input 88 treesize of output 80 [2022-11-20 12:07:01,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:07:01,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:07:01,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:07:01,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:07:01,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:07:01,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:07:01,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:07:01,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 65 [2022-11-20 12:07:03,207 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 37 proven. 16 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-20 12:07:03,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:07:05,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:07:05,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:07:05,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:07:05,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:07:05,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:07:05,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:07:05,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:07:05,474 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:07:05,475 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 8 case distinctions, treesize of input 455 treesize of output 158 [2022-11-20 12:07:05,765 WARN L837 $PredicateComparison]: unable to prove that (forall ((|aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base| (_ BitVec 64)) (v_arrayElimArr_1 (Array (_ BitVec 64) (_ BitVec 8)))) (or (not (= ((_ extract 31 24) (_ bv0 64)) (select v_arrayElimArr_1 (bvadd (_ bv3 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|)))) (not (= (select v_arrayElimArr_1 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset| (_ bv6 64))) ((_ extract 55 48) (_ bv0 64)))) (not (= (select v_arrayElimArr_1 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset| (_ bv5 64))) ((_ extract 47 40) (_ bv0 64)))) (not (= (select v_arrayElimArr_1 |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|) ((_ extract 7 0) (_ bv0 64)))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base| v_arrayElimArr_1) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv7 64))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv6 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv5 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv4 64)))) (select .cse0 (bvadd (_ bv3 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset|))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv2 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv1 64)))) (select .cse0 |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset|)))) (not (= (select v_arrayElimArr_1 (bvadd (_ bv1 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|)) ((_ extract 15 8) (_ bv0 64)))) (not (= ((_ extract 23 16) (_ bv0 64)) (select v_arrayElimArr_1 (bvadd (_ bv2 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|)))) (not (= (select v_arrayElimArr_1 (bvadd (_ bv4 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|)) ((_ extract 39 32) (_ bv0 64)))) (not (= (select v_arrayElimArr_1 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset| (_ bv7 64))) ((_ extract 63 56) (_ bv0 64)))))) is different from false [2022-11-20 12:07:06,183 WARN L837 $PredicateComparison]: unable to prove that (forall ((|aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base| (_ BitVec 64)) (v_arrayElimArr_1 (Array (_ BitVec 64) (_ BitVec 8)))) (or (not (= ((_ extract 31 24) (_ bv0 64)) (select v_arrayElimArr_1 (_ bv3 64)))) (not (= (select v_arrayElimArr_1 (_ bv0 64)) ((_ extract 7 0) (_ bv0 64)))) (not (= (select v_arrayElimArr_1 (_ bv1 64)) ((_ extract 15 8) (_ bv0 64)))) (not (= ((_ extract 23 16) (_ bv0 64)) (select v_arrayElimArr_1 (_ bv2 64)))) (not (= (select v_arrayElimArr_1 (_ bv6 64)) ((_ extract 55 48) (_ bv0 64)))) (not (= (select v_arrayElimArr_1 (_ bv5 64)) ((_ extract 47 40) (_ bv0 64)))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base| v_arrayElimArr_1) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv7 64))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv6 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv5 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv4 64)))) (select .cse0 (bvadd (_ bv3 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset|))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv2 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv1 64)))) (select .cse0 |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset|)))) (not (= (select v_arrayElimArr_1 (_ bv4 64)) ((_ extract 39 32) (_ bv0 64)))) (not (= (select v_arrayElimArr_1 (_ bv7 64)) ((_ extract 63 56) (_ bv0 64)))))) is different from false [2022-11-20 12:07:06,354 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:07:06,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474786075] [2022-11-20 12:07:06,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474786075] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:07:06,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1286675415] [2022-11-20 12:07:06,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:07:06,355 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-20 12:07:06,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/cvc4 [2022-11-20 12:07:06,361 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-20 12:07:06,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-20 12:18:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:18:47,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 1556 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-20 12:18:47,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:18:52,147 INFO L321 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2022-11-20 12:18:52,147 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 1 case distinctions, treesize of input 88 treesize of output 80 [2022-11-20 12:18:52,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:18:52,158 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:18:52,158 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:18:52,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:18:52,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:18:52,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:18:52,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:18:52,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 65 [2022-11-20 12:18:52,888 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 37 proven. 16 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-20 12:18:52,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:18:53,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:53,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:53,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:53,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:53,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:53,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:53,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:18:53,762 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-20 12:18:53,762 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 8 case distinctions, treesize of input 455 treesize of output 158 [2022-11-20 12:18:53,987 WARN L837 $PredicateComparison]: unable to prove that (forall ((|aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base| (_ BitVec 64)) (v_arrayElimArr_2 (Array (_ BitVec 64) (_ BitVec 8)))) (or (not (= (select v_arrayElimArr_2 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset| (_ bv5 64))) ((_ extract 47 40) (_ bv0 64)))) (not (= (select v_arrayElimArr_2 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset| (_ bv6 64))) ((_ extract 55 48) (_ bv0 64)))) (not (= ((_ extract 39 32) (_ bv0 64)) (select v_arrayElimArr_2 (bvadd (_ bv4 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|)))) (not (= (select v_arrayElimArr_2 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset| (_ bv7 64))) ((_ extract 63 56) (_ bv0 64)))) (not (= ((_ extract 23 16) (_ bv0 64)) (select v_arrayElimArr_2 (bvadd (_ bv2 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|)))) (not (= (select v_arrayElimArr_2 (bvadd (_ bv1 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|)) ((_ extract 15 8) (_ bv0 64)))) (not (= ((_ extract 31 24) (_ bv0 64)) (select v_arrayElimArr_2 (bvadd (_ bv3 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|)))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base| v_arrayElimArr_2) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv7 64))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv6 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv5 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv4 64)))) (select .cse0 (bvadd (_ bv3 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset|))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv2 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv1 64)))) (select .cse0 |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset|)))) (not (= (select v_arrayElimArr_2 |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.offset|) ((_ extract 7 0) (_ bv0 64)))))) is different from false [2022-11-20 12:18:54,390 WARN L837 $PredicateComparison]: unable to prove that (forall ((|aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base| (_ BitVec 64)) (v_arrayElimArr_2 (Array (_ BitVec 64) (_ BitVec 8)))) (or (not (= (select v_arrayElimArr_2 (_ bv7 64)) ((_ extract 63 56) (_ bv0 64)))) (not (= ((_ extract 23 16) (_ bv0 64)) (select v_arrayElimArr_2 (_ bv2 64)))) (not (= (select v_arrayElimArr_2 (_ bv0 64)) ((_ extract 7 0) (_ bv0 64)))) (not (= (select v_arrayElimArr_2 (_ bv1 64)) ((_ extract 15 8) (_ bv0 64)))) (not (= ((_ extract 31 24) (_ bv0 64)) (select v_arrayElimArr_2 (_ bv3 64)))) (not (= (select v_arrayElimArr_2 (_ bv6 64)) ((_ extract 55 48) (_ bv0 64)))) (not (= (select v_arrayElimArr_2 (_ bv5 64)) ((_ extract 47 40) (_ bv0 64)))) (= (_ bv0 64) (let ((.cse0 (select (store |c_#memory_int| |aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~#rv~7#1.base| v_arrayElimArr_2) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.base|))) (concat (concat (concat (concat (concat (concat (concat (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv7 64))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv6 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv5 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv4 64)))) (select .cse0 (bvadd (_ bv3 64) |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset|))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv2 64)))) (select .cse0 (bvadd |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset| (_ bv1 64)))) (select .cse0 |c_aws_byte_cursor_read_aws_byte_cursor_advance_nospec_~cursor#1.offset|)))) (not (= ((_ extract 39 32) (_ bv0 64)) (select v_arrayElimArr_2 (_ bv4 64)))))) is different from false [2022-11-20 12:18:54,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1286675415] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 12:18:54,585 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:18:54,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2022-11-20 12:18:54,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756041866] [2022-11-20 12:18:54,586 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:18:54,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-20 12:18:54,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:18:54,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-20 12:18:54,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=357, Unknown=5, NotChecked=164, Total=600 [2022-11-20 12:18:54,587 INFO L87 Difference]: Start difference. First operand 128 states and 174 transitions. Second operand has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 states have internal predecessors, (58), 8 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2022-11-20 12:19:04,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:19:07,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:19:09,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 12:19:10,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:19:10,692 INFO L93 Difference]: Finished difference Result 294 states and 406 transitions. [2022-11-20 12:19:10,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-20 12:19:10,700 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 states have internal predecessors, (58), 8 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) Word has length 96 [2022-11-20 12:19:10,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:19:10,703 INFO L225 Difference]: With dead ends: 294 [2022-11-20 12:19:10,703 INFO L226 Difference]: Without dead ends: 211 [2022-11-20 12:19:10,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 179 SyntacticMatches, 32 SemanticMatches, 35 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=174, Invalid=893, Unknown=5, NotChecked=260, Total=1332 [2022-11-20 12:19:10,705 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 147 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 14 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 1026 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 165 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:19:10,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 1026 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 445 Invalid, 3 Unknown, 165 Unchecked, 13.3s Time] [2022-11-20 12:19:10,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-11-20 12:19:10,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 167. [2022-11-20 12:19:10,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 108 states have (on average 1.212962962962963) internal successors, (131), 113 states have internal predecessors, (131), 44 states have call successors, (44), 13 states have call predecessors, (44), 14 states have return successors, (55), 40 states have call predecessors, (55), 41 states have call successors, (55) [2022-11-20 12:19:10,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 230 transitions. [2022-11-20 12:19:10,730 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 230 transitions. Word has length 96 [2022-11-20 12:19:10,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:19:10,731 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 230 transitions. [2022-11-20 12:19:10,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.411764705882353) internal successors, (58), 16 states have internal predecessors, (58), 8 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2022-11-20 12:19:10,731 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 230 transitions. [2022-11-20 12:19:10,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-20 12:19:10,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:19:10,733 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:19:10,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-20 12:19:11,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-20 12:19:11,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/cvc4 --incremental --print-success --lang smt [2022-11-20 12:19:11,144 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:19:11,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:19:11,145 INFO L85 PathProgramCache]: Analyzing trace with hash -857006711, now seen corresponding path program 1 times [2022-11-20 12:19:11,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:19:11,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797817920] [2022-11-20 12:19:11,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:19:11,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:19:11,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:19:11,148 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:19:11,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07213ff6-512a-4ced-9609-cb912ccf9144/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-20 12:19:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:19:31,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 1655 conjuncts, 115 conjunts are in the unsatisfiable core [2022-11-20 12:19:31,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:19:31,227 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 6 treesize of output 7 [2022-11-20 12:19:31,797 INFO L321 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2022-11-20 12:19:31,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2022-11-20 12:19:32,754 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-20 12:19:32,755 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 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-20 12:19:37,819 INFO L321 Elim1Store]: treesize reduction 118, result has 24.4 percent of original size [2022-11-20 12:19:37,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 38 treesize of output 65 [2022-11-20 12:19:44,424 INFO L321 Elim1Store]: treesize reduction 48, result has 31.4 percent of original size [2022-11-20 12:19:44,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 44 [2022-11-20 12:19:48,254 INFO L321 Elim1Store]: treesize reduction 18, result has 41.9 percent of original size [2022-11-20 12:19:48,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 31 [2022-11-20 12:19:50,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,796 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:19:50,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:19:50,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:19:50,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:19:50,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:19:50,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,859 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:19:50,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:19:50,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:50,866 INFO L217 Elim1Store]: Index analysis took 121 ms [2022-11-20 12:19:51,133 INFO L321 Elim1Store]: treesize reduction 98, result has 6.7 percent of original size [2022-11-20 12:19:51,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 18 select indices, 18 select index equivalence classes, 39 disjoint index pairs (out of 153 index pairs), introduced 11 new quantified variables, introduced 18 case distinctions, treesize of input 109209 treesize of output 1736 [2022-11-20 12:19:51,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,156 INFO L321 Elim1Store]: treesize reduction 810, result has 2.5 percent of original size [2022-11-20 12:19:52,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1492 treesize of output 1368 [2022-11-20 12:19:52,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 1311 treesize of output 1072 [2022-11-20 12:19:52,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:52,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:19:52,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 5599 treesize of output 5349 [2022-11-20 12:19:53,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:53,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:53,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:53,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:53,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:53,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:53,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:53,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:53,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:53,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:53,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:53,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:53,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:53,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-20 12:19:53,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-20 12:19:53,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 5599 treesize of output 5349 [2022-11-20 12:20:23,625 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 48 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-20 12:20:23,626 INFO L328 TraceCheckSpWp]: Computing backward predicates...