./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 e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8 --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-e04fb08 [2022-11-16 10:54:57,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:54:57,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:54:57,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:54:57,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:54:57,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:54:57,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:54:57,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:54:57,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:54:57,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:54:57,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:54:57,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:54:57,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:54:57,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:54:57,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:54:57,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:54:57,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:54:57,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:54:57,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:54:57,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:54:57,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:54:57,696 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:54:57,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:54:57,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:54:57,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:54:57,712 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:54:57,712 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:54:57,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:54:57,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:54:57,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:54:57,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:54:57,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:54:57,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:54:57,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:54:57,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:54:57,724 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:54:57,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:54:57,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:54:57,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:54:57,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:54:57,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:54:57,728 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 10:54:57,766 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:54:57,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:54:57,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:54:57,768 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:54:57,768 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:54:57,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:54:57,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:54:57,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:54:57,770 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:54:57,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:54:57,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:54:57,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:54:57,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:54:57,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:54:57,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:54:57,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:54:57,773 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:54:57,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:54:57,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:54:57,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:54:57,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:54:57,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:54:57,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:54:57,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:54:57,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:54:57,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:54:57,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:54:57,777 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:54:57,777 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:54:57,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:54:57,778 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_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 [2022-11-16 10:54:58,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:54:58,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:54:58,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:54:58,086 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:54:58,091 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:54:58,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2022-11-16 10:54:58,166 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/data/f4b22b8ec/c6bcf1eacc8042bd9aa30985f9734f1c/FLAGb178fee7d [2022-11-16 10:54:59,039 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:54:59,040 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2022-11-16 10:54:59,088 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/data/f4b22b8ec/c6bcf1eacc8042bd9aa30985f9734f1c/FLAGb178fee7d [2022-11-16 10:54:59,547 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/data/f4b22b8ec/c6bcf1eacc8042bd9aa30985f9734f1c [2022-11-16 10:54:59,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:54:59,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:54:59,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:54:59,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:54:59,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:54:59,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:54:59" (1/1) ... [2022-11-16 10:54:59,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52c2d5d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:54:59, skipping insertion in model container [2022-11-16 10:54:59,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:54:59" (1/1) ... [2022-11-16 10:54:59,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:54:59,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:54:59,987 WARN L229 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_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2022-11-16 10:54:59,997 WARN L229 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_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2022-11-16 10:55:01,052 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:01,053 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:01,054 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:01,054 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:01,056 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:01,086 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:01,091 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:01,093 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:01,094 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:01,588 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 10:55:01,589 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 10:55:01,590 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 10:55:01,592 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 10:55:01,593 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 10:55:01,594 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 10:55:01,595 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 10:55:01,596 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 10:55:01,597 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 10:55:01,597 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 10:55:01,832 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 10:55:01,980 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:01,981 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:02,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:55:02,096 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:55:02,126 WARN L229 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_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2022-11-16 10:55:02,127 WARN L229 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_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2022-11-16 10:55:02,182 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:02,183 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:02,184 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:02,186 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:02,187 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:02,199 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:02,199 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:02,204 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:02,205 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:02,298 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 10:55:02,299 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 10:55:02,300 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 10:55:02,301 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 10:55:02,302 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 10:55:02,302 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 10:55:02,303 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 10:55:02,308 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 10:55:02,308 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 10:55:02,309 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 10:55:02,341 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 10:55:02,422 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:02,423 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:02,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:55:02,662 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:55:02,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:02 WrapperNode [2022-11-16 10:55:02,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:55:02,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:55:02,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:55:02,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:55:02,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:02" (1/1) ... [2022-11-16 10:55:02,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:02" (1/1) ... [2022-11-16 10:55:02,857 INFO L138 Inliner]: procedures = 690, calls = 2631, calls flagged for inlining = 60, calls inlined = 9, statements flattened = 945 [2022-11-16 10:55:02,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:55:02,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:55:02,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:55:02,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:55:02,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:02" (1/1) ... [2022-11-16 10:55:02,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:02" (1/1) ... [2022-11-16 10:55:02,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:02" (1/1) ... [2022-11-16 10:55:02,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:02" (1/1) ... [2022-11-16 10:55:02,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:02" (1/1) ... [2022-11-16 10:55:02,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:02" (1/1) ... [2022-11-16 10:55:02,917 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:02" (1/1) ... [2022-11-16 10:55:02,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:02" (1/1) ... [2022-11-16 10:55:02,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:55:02,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:55:02,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:55:02,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:55:02,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:02" (1/1) ... [2022-11-16 10:55:02,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:55:02,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:55:03,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:55:03,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:55:03,060 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2022-11-16 10:55:03,060 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2022-11-16 10:55:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-16 10:55:03,061 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-16 10:55:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:55:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-16 10:55:03,062 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-16 10:55:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2022-11-16 10:55:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 10:55:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 10:55:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 10:55:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 10:55:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 10:55:03,065 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 10:55:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 10:55:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 10:55:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:55:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 10:55:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:55:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:55:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-16 10:55:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-16 10:55:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-16 10:55:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-16 10:55:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 10:55:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 10:55:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 10:55:03,068 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 10:55:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:55:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 10:55:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 10:55:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-16 10:55:03,070 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-16 10:55:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 10:55:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2022-11-16 10:55:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 10:55:03,490 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:55:03,493 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:55:05,042 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:55:05,055 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:55:05,055 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 10:55:05,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:55:05 BoogieIcfgContainer [2022-11-16 10:55:05,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:55:05,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:55:05,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:55:05,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:55:05,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:54:59" (1/3) ... [2022-11-16 10:55:05,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f56c18c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:55:05, skipping insertion in model container [2022-11-16 10:55:05,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:02" (2/3) ... [2022-11-16 10:55:05,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f56c18c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:55:05, skipping insertion in model container [2022-11-16 10:55:05,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:55:05" (3/3) ... [2022-11-16 10:55:05,068 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_harness.i [2022-11-16 10:55:05,088 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:55:05,088 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 10:55:05,171 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:55:05,181 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;@15a1b2a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:55:05,182 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 10:55:05,186 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) [2022-11-16 10:55:05,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 10:55:05,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:55:05,205 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] [2022-11-16 10:55:05,205 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:55:05,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:55:05,212 INFO L85 PathProgramCache]: Analyzing trace with hash 896154906, now seen corresponding path program 1 times [2022-11-16 10:55:05,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:55:05,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382903601] [2022-11-16 10:55:05,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:55:05,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:55:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:06,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 10:55:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:06,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 10:55:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:06,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-16 10:55:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:06,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 10:55:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:06,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 10:55:06,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:06,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 10:55:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:06,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 10:55:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:06,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 10:55:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:06,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 10:55:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 10:55:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:06,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 10:55:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:06,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 10:55:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:06,233 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-16 10:55:06,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:55:06,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382903601] [2022-11-16 10:55:06,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382903601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:55:06,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:55:06,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 10:55:06,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318172513] [2022-11-16 10:55:06,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:55:06,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:55:06,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:55:06,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:55:06,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:55:06,288 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) [2022-11-16 10:55:06,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:55:06,723 INFO L93 Difference]: Finished difference Result 253 states and 367 transitions. [2022-11-16 10:55:06,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:55:06,726 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 [2022-11-16 10:55:06,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:55:06,737 INFO L225 Difference]: With dead ends: 253 [2022-11-16 10:55:06,737 INFO L226 Difference]: Without dead ends: 118 [2022-11-16 10:55:06,741 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 [2022-11-16 10:55:06,744 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 [2022-11-16 10:55:06,745 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] [2022-11-16 10:55:06,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-16 10:55:06,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-11-16 10:55:06,790 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) [2022-11-16 10:55:06,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 159 transitions. [2022-11-16 10:55:06,794 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 159 transitions. Word has length 84 [2022-11-16 10:55:06,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:55:06,795 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 159 transitions. [2022-11-16 10:55:06,795 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) [2022-11-16 10:55:06,795 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 159 transitions. [2022-11-16 10:55:06,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 10:55:06,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:55:06,799 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] [2022-11-16 10:55:06,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 10:55:06,799 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:55:06,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:55:06,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1815225614, now seen corresponding path program 1 times [2022-11-16 10:55:06,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:55:06,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702896534] [2022-11-16 10:55:06,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:55:06,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:55:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:07,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 10:55:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:07,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 10:55:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:07,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-16 10:55:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:07,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 10:55:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:07,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-16 10:55:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:07,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-16 10:55:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:07,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 10:55:07,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:07,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-16 10:55:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:07,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-16 10:55:07,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:07,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-16 10:55:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:07,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 10:55:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:07,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-11-16 10:55:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:07,749 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-16 10:55:07,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:55:07,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702896534] [2022-11-16 10:55:07,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702896534] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:55:07,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713683799] [2022-11-16 10:55:07,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:55:07,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:55:07,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:55:07,762 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:55:07,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 10:55:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:08,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 2598 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 10:55:08,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:55:08,543 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-16 10:55:08,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:55:08,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713683799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:55:08,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 10:55:08,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2022-11-16 10:55:08,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844427591] [2022-11-16 10:55:08,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:55:08,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:55:08,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:55:08,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:55:08,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-16 10:55:08,546 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) [2022-11-16 10:55:08,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:55:08,760 INFO L93 Difference]: Finished difference Result 220 states and 305 transitions. [2022-11-16 10:55:08,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:55:08,761 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 [2022-11-16 10:55:08,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:55:08,764 INFO L225 Difference]: With dead ends: 220 [2022-11-16 10:55:08,764 INFO L226 Difference]: Without dead ends: 121 [2022-11-16 10:55:08,765 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 [2022-11-16 10:55:08,766 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 [2022-11-16 10:55:08,767 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] [2022-11-16 10:55:08,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-16 10:55:08,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-11-16 10:55:08,783 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) [2022-11-16 10:55:08,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 167 transitions. [2022-11-16 10:55:08,785 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 167 transitions. Word has length 84 [2022-11-16 10:55:08,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:55:08,785 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 167 transitions. [2022-11-16 10:55:08,785 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) [2022-11-16 10:55:08,786 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 167 transitions. [2022-11-16 10:55:08,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-16 10:55:08,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:55:08,788 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] [2022-11-16 10:55:08,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 10:55:08,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:55:08,998 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:55:08,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:55:08,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1294869363, now seen corresponding path program 1 times [2022-11-16 10:55:08,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:55:08,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232709390] [2022-11-16 10:55:08,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:55:08,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:55:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:09,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 10:55:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:09,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 10:55:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:09,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-16 10:55:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:09,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 10:55:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:09,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-16 10:55:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:09,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 10:55:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:09,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 10:55:09,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:09,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 10:55:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:09,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-16 10:55:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:09,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 10:55:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:09,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-16 10:55:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:09,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-16 10:55:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:09,915 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-16 10:55:09,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:55:09,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232709390] [2022-11-16 10:55:09,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232709390] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:55:09,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972498016] [2022-11-16 10:55:09,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:55:09,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:55:09,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:55:09,918 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:55:09,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 10:55:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:10,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 2603 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 10:55:10,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:55:10,805 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 10:55:10,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:55:10,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972498016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:55:10,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 10:55:10,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2022-11-16 10:55:10,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269685501] [2022-11-16 10:55:10,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:55:10,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 10:55:10,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:55:10,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 10:55:10,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-16 10:55:10,809 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) [2022-11-16 10:55:11,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:55:11,162 INFO L93 Difference]: Finished difference Result 211 states and 293 transitions. [2022-11-16 10:55:11,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 10:55:11,163 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 [2022-11-16 10:55:11,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:55:11,168 INFO L225 Difference]: With dead ends: 211 [2022-11-16 10:55:11,168 INFO L226 Difference]: Without dead ends: 121 [2022-11-16 10:55:11,169 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 [2022-11-16 10:55:11,173 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 [2022-11-16 10:55:11,175 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] [2022-11-16 10:55:11,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-16 10:55:11,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-11-16 10:55:11,196 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) [2022-11-16 10:55:11,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 164 transitions. [2022-11-16 10:55:11,198 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 164 transitions. Word has length 86 [2022-11-16 10:55:11,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:55:11,200 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 164 transitions. [2022-11-16 10:55:11,201 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) [2022-11-16 10:55:11,201 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 164 transitions. [2022-11-16 10:55:11,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-16 10:55:11,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:55:11,211 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] [2022-11-16 10:55:11,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-16 10:55:11,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:55:11,420 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:55:11,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:55:11,421 INFO L85 PathProgramCache]: Analyzing trace with hash 757728024, now seen corresponding path program 2 times [2022-11-16 10:55:11,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:55:11,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994648488] [2022-11-16 10:55:11,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:55:11,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:55:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:12,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 10:55:12,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:12,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 10:55:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:12,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-16 10:55:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:12,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 10:55:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:12,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-16 10:55:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:12,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 10:55:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:12,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 10:55:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:12,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 10:55:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:12,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-16 10:55:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:12,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-16 10:55:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:12,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-16 10:55:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:12,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-16 10:55:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:55:12,262 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-16 10:55:12,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:55:12,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994648488] [2022-11-16 10:55:12,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994648488] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:55:12,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852582936] [2022-11-16 10:55:12,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 10:55:12,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:55:12,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:55:12,264 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 10:55:12,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 10:55:13,466 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 10:55:13,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 10:55:13,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 2608 conjuncts, 288 conjunts are in the unsatisfiable core [2022-11-16 10:55:13,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:55:16,979 INFO L217 Elim1Store]: Index analysis took 199 ms [2022-11-16 10:55:19,995 INFO L321 Elim1Store]: treesize reduction 552, result has 50.0 percent of original size [2022-11-16 10:55:19,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 139 select indices, 139 select index equivalence classes, 9453 disjoint index pairs (out of 9591 index pairs), introduced 139 new quantified variables, introduced 138 case distinctions, treesize of input 696 treesize of output 970 [2022-11-16 10:55:43,615 WARN L718 sPolynomialRelations]: Constructing 2147483647(two to the power of 138 dual juncts. [2022-11-16 10:55:43,616 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-16 10:55:43,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 10:55:43,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 10:55:43,826 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) [2022-11-16 10:55:43,829 INFO L158 Benchmark]: Toolchain (without parser) took 44276.08ms. Allocated memory was 96.5MB in the beginning and 559.9MB in the end (delta: 463.5MB). Free memory was 72.5MB in the beginning and 271.1MB in the end (delta: -198.6MB). Peak memory consumption was 377.3MB. Max. memory is 16.1GB. [2022-11-16 10:55:43,830 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 96.5MB. Free memory was 75.2MB in the beginning and 75.1MB in the end (delta: 71.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 10:55:43,830 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3106.29ms. Allocated memory was 96.5MB in the beginning and 138.4MB in the end (delta: 41.9MB). Free memory was 72.2MB in the beginning and 55.1MB in the end (delta: 17.1MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. [2022-11-16 10:55:43,830 INFO L158 Benchmark]: Boogie Procedure Inliner took 194.11ms. Allocated memory is still 138.4MB. Free memory was 55.1MB in the beginning and 81.2MB in the end (delta: -26.1MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2022-11-16 10:55:43,831 INFO L158 Benchmark]: Boogie Preprocessor took 87.15ms. Allocated memory is still 138.4MB. Free memory was 81.2MB in the beginning and 73.6MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 10:55:43,831 INFO L158 Benchmark]: RCFGBuilder took 2111.96ms. Allocated memory was 138.4MB in the beginning and 184.5MB in the end (delta: 46.1MB). Free memory was 73.6MB in the beginning and 113.7MB in the end (delta: -40.1MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-16 10:55:43,831 INFO L158 Benchmark]: TraceAbstraction took 38768.06ms. Allocated memory was 184.5MB in the beginning and 559.9MB in the end (delta: 375.4MB). Free memory was 112.6MB in the beginning and 271.1MB in the end (delta: -158.5MB). Peak memory consumption was 331.1MB. Max. memory is 16.1GB. [2022-11-16 10:55:43,833 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 96.5MB. Free memory was 75.2MB in the beginning and 75.1MB in the end (delta: 71.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3106.29ms. Allocated memory was 96.5MB in the beginning and 138.4MB in the end (delta: 41.9MB). Free memory was 72.2MB in the beginning and 55.1MB in the end (delta: 17.1MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 194.11ms. Allocated memory is still 138.4MB. Free memory was 55.1MB in the beginning and 81.2MB in the end (delta: -26.1MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.15ms. Allocated memory is still 138.4MB. Free memory was 81.2MB in the beginning and 73.6MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2111.96ms. Allocated memory was 138.4MB in the beginning and 184.5MB in the end (delta: 46.1MB). Free memory was 73.6MB in the beginning and 113.7MB in the end (delta: -40.1MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * TraceAbstraction took 38768.06ms. Allocated memory was 184.5MB in the beginning and 559.9MB in the end (delta: 375.4MB). Free memory was 112.6MB in the beginning and 271.1MB in the end (delta: -158.5MB). Peak memory consumption was 331.1MB. 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. [2022-11-16 10:55:43,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8 --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-e04fb08 [2022-11-16 10:55:46,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:55:46,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:55:46,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:55:46,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:55:46,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:55:46,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:55:46,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:55:46,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:55:46,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:55:46,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:55:46,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:55:46,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:55:46,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:55:46,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:55:46,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:55:46,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:55:46,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:55:46,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:55:46,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:55:46,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:55:46,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:55:46,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:55:46,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:55:46,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:55:46,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:55:46,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:55:46,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:55:46,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:55:46,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:55:46,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:55:46,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:55:46,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:55:46,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:55:46,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:55:46,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:55:46,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:55:46,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:55:46,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:55:46,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:55:46,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:55:46,282 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 10:55:46,320 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:55:46,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:55:46,322 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:55:46,322 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:55:46,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:55:46,323 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:55:46,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:55:46,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:55:46,325 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:55:46,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:55:46,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:55:46,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:55:46,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:55:46,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:55:46,328 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 10:55:46,329 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 10:55:46,329 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 10:55:46,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:55:46,329 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:55:46,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:55:46,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:55:46,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:55:46,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:55:46,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:55:46,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:55:46,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:55:46,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:55:46,332 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 10:55:46,333 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 10:55:46,333 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:55:46,333 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:55:46,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:55:46,334 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 10:55:46,334 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_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4d945c40a0d8f8226eb600057b7aa267dec29f7781f2da62dc3d7dcc0ef56 [2022-11-16 10:55:46,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:55:46,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:55:46,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:55:46,791 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:55:46,793 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:55:46,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2022-11-16 10:55:46,871 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/data/305e9aec5/adf5d9f1c1e245d882da80455ebdbe30/FLAG8d365bcea [2022-11-16 10:55:47,783 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:55:47,784 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i [2022-11-16 10:55:47,832 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/data/305e9aec5/adf5d9f1c1e245d882da80455ebdbe30/FLAG8d365bcea [2022-11-16 10:55:48,261 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/data/305e9aec5/adf5d9f1c1e245d882da80455ebdbe30 [2022-11-16 10:55:48,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:55:48,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:55:48,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:55:48,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:55:48,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:55:48,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:55:48" (1/1) ... [2022-11-16 10:55:48,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65bc15cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:48, skipping insertion in model container [2022-11-16 10:55:48,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:55:48" (1/1) ... [2022-11-16 10:55:48,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:55:48,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:55:48,730 WARN L229 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_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2022-11-16 10:55:48,737 WARN L229 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_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2022-11-16 10:55:49,643 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:49,646 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:49,647 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:49,648 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:49,649 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:49,667 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:49,668 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:49,670 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:49,670 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:50,066 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 10:55:50,068 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 10:55:50,070 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 10:55:50,071 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 10:55:50,076 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 10:55:50,077 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 10:55:50,079 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 10:55:50,082 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 10:55:50,083 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 10:55:50,085 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 10:55:50,262 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 10:55:50,346 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:50,347 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:50,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:55:50,522 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-16 10:55:50,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:55:50,605 WARN L229 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_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2022-11-16 10:55:50,607 WARN L229 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_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2022-11-16 10:55:50,662 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:50,663 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:50,663 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:50,664 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:50,664 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:50,672 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:50,679 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:50,680 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:50,683 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:50,735 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 10:55:50,737 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 10:55:50,737 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 10:55:50,738 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 10:55:50,739 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 10:55:50,740 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 10:55:50,741 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 10:55:50,744 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 10:55:50,745 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 10:55:50,745 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 10:55:50,787 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 10:55:50,872 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:50,872 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:50,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:55:50,957 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:55:50,982 WARN L229 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_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4494,4507] [2022-11-16 10:55:50,982 WARN L229 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_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/sv-benchmarks/c/aws-c-common/aws_byte_cursor_read_harness.i[4554,4567] [2022-11-16 10:55:51,061 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:51,062 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:51,062 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:51,062 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:51,063 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:51,068 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:51,069 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:51,071 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:51,071 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:51,099 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-16 10:55:51,099 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-16 10:55:51,100 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-16 10:55:51,100 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-16 10:55:51,101 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-16 10:55:51,102 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-16 10:55:51,102 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-16 10:55:51,103 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-16 10:55:51,104 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-16 10:55:51,104 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-16 10:55:51,125 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-16 10:55:51,189 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:51,190 WARN L1554 CHandler]: Possible shadowing of function index [2022-11-16 10:55:51,244 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:55:51,604 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:55:51,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:51 WrapperNode [2022-11-16 10:55:51,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:55:51,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:55:51,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:55:51,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:55:51,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:51" (1/1) ... [2022-11-16 10:55:51,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:51" (1/1) ... [2022-11-16 10:55:51,909 INFO L138 Inliner]: procedures = 710, calls = 2631, calls flagged for inlining = 60, calls inlined = 9, statements flattened = 939 [2022-11-16 10:55:51,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:55:51,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:55:51,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:55:51,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:55:51,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:51" (1/1) ... [2022-11-16 10:55:51,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:51" (1/1) ... [2022-11-16 10:55:51,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:51" (1/1) ... [2022-11-16 10:55:51,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:51" (1/1) ... [2022-11-16 10:55:52,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:51" (1/1) ... [2022-11-16 10:55:52,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:51" (1/1) ... [2022-11-16 10:55:52,035 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:51" (1/1) ... [2022-11-16 10:55:52,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:51" (1/1) ... [2022-11-16 10:55:52,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:55:52,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:55:52,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:55:52,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:55:52,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:51" (1/1) ... [2022-11-16 10:55:52,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:55:52,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:55:52,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:55:52,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:55:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_read [2022-11-16 10:55:52,144 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_read [2022-11-16 10:55:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_cursor_is_valid [2022-11-16 10:55:52,144 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_cursor_is_valid [2022-11-16 10:55:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:55:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-16 10:55:52,144 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-16 10:55:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 10:55:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-16 10:55:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-16 10:55:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2022-11-16 10:55:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 10:55:52,145 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 10:55:52,145 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-16 10:55:52,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-16 10:55:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 10:55:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:55:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 10:55:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-16 10:55:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-16 10:55:52,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-16 10:55:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-16 10:55:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:55:52,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:55:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-16 10:55:52,147 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-16 10:55:52,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-16 10:55:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2022-11-16 10:55:52,148 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2022-11-16 10:55:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-16 10:55:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 10:55:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 10:55:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 10:55:52,149 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 10:55:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:55:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 10:55:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-16 10:55:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-16 10:55:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 10:55:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2022-11-16 10:55:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE4 [2022-11-16 10:55:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2022-11-16 10:55:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-16 10:55:52,150 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-16 10:55:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-16 10:55:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-16 10:55:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-16 10:55:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-16 10:55:52,558 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:55:52,561 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:55:58,963 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:55:58,980 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:55:58,983 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 10:55:58,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:55:58 BoogieIcfgContainer [2022-11-16 10:55:58,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:55:58,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:55:58,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:55:58,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:55:58,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:55:48" (1/3) ... [2022-11-16 10:55:58,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d12a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:55:58, skipping insertion in model container [2022-11-16 10:55:58,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:55:51" (2/3) ... [2022-11-16 10:55:58,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d12a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:55:58, skipping insertion in model container [2022-11-16 10:55:58,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:55:58" (3/3) ... [2022-11-16 10:55:58,999 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_byte_cursor_read_harness.i [2022-11-16 10:55:59,019 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:55:59,019 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 10:55:59,090 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:55:59,097 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;@1fda038e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:55:59,097 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 10:55:59,102 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) [2022-11-16 10:55:59,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 10:55:59,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:55:59,119 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] [2022-11-16 10:55:59,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:55:59,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:55:59,128 INFO L85 PathProgramCache]: Analyzing trace with hash -132459702, now seen corresponding path program 1 times [2022-11-16 10:55:59,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 10:55:59,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1706415926] [2022-11-16 10:55:59,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:55:59,148 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 [2022-11-16 10:55:59,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 10:55:59,158 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 10:55:59,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:00,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 1533 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 10:56:00,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:56:00,323 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-16 10:56:00,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:56:00,324 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 10:56:00,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1706415926] [2022-11-16 10:56:00,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1706415926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:56:00,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:56:00,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:56:00,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548129529] [2022-11-16 10:56:00,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:56:00,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 10:56:00,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 10:56:00,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 10:56:00,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 10:56:00,368 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) [2022-11-16 10:56:00,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:56:00,429 INFO L93 Difference]: Finished difference Result 247 states and 357 transitions. [2022-11-16 10:56:00,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 10:56:00,431 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 [2022-11-16 10:56:00,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:56:00,440 INFO L225 Difference]: With dead ends: 247 [2022-11-16 10:56:00,444 INFO L226 Difference]: Without dead ends: 115 [2022-11-16 10:56:00,451 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 [2022-11-16 10:56:00,456 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 [2022-11-16 10:56:00,458 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] [2022-11-16 10:56:00,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-11-16 10:56:00,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2022-11-16 10:56:00,520 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) [2022-11-16 10:56:00,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 154 transitions. [2022-11-16 10:56:00,533 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 154 transitions. Word has length 84 [2022-11-16 10:56:00,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:56:00,535 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 154 transitions. [2022-11-16 10:56:00,535 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) [2022-11-16 10:56:00,536 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 154 transitions. [2022-11-16 10:56:00,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 10:56:00,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:56:00,544 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] [2022-11-16 10:56:00,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:00,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:00,759 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:56:00,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:00,759 INFO L85 PathProgramCache]: Analyzing trace with hash 786611006, now seen corresponding path program 1 times [2022-11-16 10:56:00,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 10:56:00,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101965332] [2022-11-16 10:56:00,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:00,763 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 [2022-11-16 10:56:00,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 10:56:00,765 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 10:56:00,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:01,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 1533 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 10:56:01,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:56:01,946 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-11-16 10:56:01,947 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:56:01,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 10:56:01,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101965332] [2022-11-16 10:56:01,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101965332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:56:01,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:56:01,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:56:01,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273528973] [2022-11-16 10:56:01,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:56:01,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 10:56:01,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 10:56:01,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 10:56:01,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 10:56:01,952 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) [2022-11-16 10:56:02,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:56:02,212 INFO L93 Difference]: Finished difference Result 214 states and 295 transitions. [2022-11-16 10:56:02,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 10:56:02,216 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 [2022-11-16 10:56:02,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:56:02,219 INFO L225 Difference]: With dead ends: 214 [2022-11-16 10:56:02,219 INFO L226 Difference]: Without dead ends: 118 [2022-11-16 10:56:02,220 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 [2022-11-16 10:56:02,221 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 10:56:02,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 369 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 10:56:02,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-16 10:56:02,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-11-16 10:56:02,235 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) [2022-11-16 10:56:02,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 162 transitions. [2022-11-16 10:56:02,236 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 162 transitions. Word has length 84 [2022-11-16 10:56:02,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:56:02,237 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 162 transitions. [2022-11-16 10:56:02,237 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) [2022-11-16 10:56:02,238 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 162 transitions. [2022-11-16 10:56:02,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-16 10:56:02,240 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:56:02,240 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] [2022-11-16 10:56:02,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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)] Ended with exit code 0 [2022-11-16 10:56:02,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:02,463 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:56:02,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:02,464 INFO L85 PathProgramCache]: Analyzing trace with hash -89717469, now seen corresponding path program 1 times [2022-11-16 10:56:02,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 10:56:02,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533950464] [2022-11-16 10:56:02,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:02,468 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 [2022-11-16 10:56:02,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 10:56:02,469 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 10:56:02,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:03,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 1537 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 10:56:03,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:56:03,764 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-16 10:56:03,764 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:56:03,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 10:56:03,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533950464] [2022-11-16 10:56:03,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1533950464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:56:03,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:56:03,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 10:56:03,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754880000] [2022-11-16 10:56:03,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:56:03,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 10:56:03,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 10:56:03,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 10:56:03,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 10:56:03,767 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) [2022-11-16 10:56:04,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:56:04,258 INFO L93 Difference]: Finished difference Result 205 states and 283 transitions. [2022-11-16 10:56:04,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 10:56:04,263 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 [2022-11-16 10:56:04,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:56:04,265 INFO L225 Difference]: With dead ends: 205 [2022-11-16 10:56:04,265 INFO L226 Difference]: Without dead ends: 118 [2022-11-16 10:56:04,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 10:56:04,267 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 [2022-11-16 10:56:04,268 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] [2022-11-16 10:56:04,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-16 10:56:04,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-11-16 10:56:04,282 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) [2022-11-16 10:56:04,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 159 transitions. [2022-11-16 10:56:04,284 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 159 transitions. Word has length 86 [2022-11-16 10:56:04,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:56:04,285 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 159 transitions. [2022-11-16 10:56:04,285 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) [2022-11-16 10:56:04,285 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 159 transitions. [2022-11-16 10:56:04,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-16 10:56:04,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:56:04,287 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] [2022-11-16 10:56:04,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:04,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:04,502 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:56:04,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:04,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1258406584, now seen corresponding path program 2 times [2022-11-16 10:56:04,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 10:56:04,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [615083634] [2022-11-16 10:56:04,506 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 10:56:04,506 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 [2022-11-16 10:56:04,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 10:56:04,507 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 10:56:04,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:10,677 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 10:56:10,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 10:56:10,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 1541 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 10:56:10,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:56:11,085 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-16 10:56:11,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:56:11,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 10:56:11,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [615083634] [2022-11-16 10:56:11,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [615083634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:56:11,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:56:11,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 10:56:11,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900126775] [2022-11-16 10:56:11,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:56:11,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 10:56:11,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 10:56:11,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 10:56:11,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 10:56:11,088 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) [2022-11-16 10:56:13,515 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 [] [2022-11-16 10:56:13,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:56:13,849 INFO L93 Difference]: Finished difference Result 220 states and 302 transitions. [2022-11-16 10:56:13,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 10:56:13,853 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 [2022-11-16 10:56:13,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:56:13,855 INFO L225 Difference]: With dead ends: 220 [2022-11-16 10:56:13,855 INFO L226 Difference]: Without dead ends: 138 [2022-11-16 10:56:13,856 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 [2022-11-16 10:56:13,856 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 81 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 41 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 2.7s IncrementalHoareTripleChecker+Time [2022-11-16 10:56:13,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 837 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 120 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-11-16 10:56:13,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-11-16 10:56:13,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 119. [2022-11-16 10:56:13,876 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) [2022-11-16 10:56:13,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 160 transitions. [2022-11-16 10:56:13,879 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 160 transitions. Word has length 88 [2022-11-16 10:56:13,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:56:13,880 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 160 transitions. [2022-11-16 10:56:13,881 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) [2022-11-16 10:56:13,883 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 160 transitions. [2022-11-16 10:56:13,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-16 10:56:13,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:56:13,887 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] [2022-11-16 10:56:13,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:14,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:14,088 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:56:14,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:14,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1135513054, now seen corresponding path program 1 times [2022-11-16 10:56:14,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 10:56:14,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301668399] [2022-11-16 10:56:14,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:14,090 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 [2022-11-16 10:56:14,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 10:56:14,092 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 10:56:14,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:15,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 1642 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 10:56:15,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:56:15,307 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-11-16 10:56:15,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:56:15,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 10:56:15,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301668399] [2022-11-16 10:56:15,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301668399] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:56:15,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:56:15,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 10:56:15,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289191903] [2022-11-16 10:56:15,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:56:15,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:56:15,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 10:56:15,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:56:15,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:56:15,312 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) [2022-11-16 10:56:15,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:56:15,488 INFO L93 Difference]: Finished difference Result 198 states and 265 transitions. [2022-11-16 10:56:15,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:56:15,496 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 [2022-11-16 10:56:15,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:56:15,498 INFO L225 Difference]: With dead ends: 198 [2022-11-16 10:56:15,499 INFO L226 Difference]: Without dead ends: 120 [2022-11-16 10:56:15,500 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 [2022-11-16 10:56:15,501 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 [2022-11-16 10:56:15,503 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] [2022-11-16 10:56:15,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-16 10:56:15,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-11-16 10:56:15,527 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) [2022-11-16 10:56:15,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 161 transitions. [2022-11-16 10:56:15,530 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 161 transitions. Word has length 91 [2022-11-16 10:56:15,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:56:15,533 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 161 transitions. [2022-11-16 10:56:15,533 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) [2022-11-16 10:56:15,533 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 161 transitions. [2022-11-16 10:56:15,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-16 10:56:15,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:56:15,534 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] [2022-11-16 10:56:15,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:15,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:15,751 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:56:15,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:15,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1722319068, now seen corresponding path program 1 times [2022-11-16 10:56:15,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 10:56:15,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570419247] [2022-11-16 10:56:15,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:15,754 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 [2022-11-16 10:56:15,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 10:56:15,755 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 10:56:15,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:17,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1644 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 10:56:17,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:56:17,385 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-16 10:56:17,385 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:56:17,385 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 10:56:17,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570419247] [2022-11-16 10:56:17,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570419247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:56:17,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:56:17,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 10:56:17,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562072276] [2022-11-16 10:56:17,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:56:17,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 10:56:17,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 10:56:17,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 10:56:17,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-16 10:56:17,388 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) [2022-11-16 10:56:19,811 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 [] [2022-11-16 10:56:20,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:56:20,093 INFO L93 Difference]: Finished difference Result 215 states and 290 transitions. [2022-11-16 10:56:20,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 10:56:20,096 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 [2022-11-16 10:56:20,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:56:20,098 INFO L225 Difference]: With dead ends: 215 [2022-11-16 10:56:20,098 INFO L226 Difference]: Without dead ends: 139 [2022-11-16 10:56:20,099 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 [2022-11-16 10:56:20,100 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 86 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s 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, 2.6s IncrementalHoareTripleChecker+Time [2022-11-16 10:56:20,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 917 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 135 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-11-16 10:56:20,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-16 10:56:20,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 119. [2022-11-16 10:56:20,114 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) [2022-11-16 10:56:20,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 158 transitions. [2022-11-16 10:56:20,115 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 158 transitions. Word has length 91 [2022-11-16 10:56:20,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:56:20,116 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 158 transitions. [2022-11-16 10:56:20,116 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) [2022-11-16 10:56:20,116 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 158 transitions. [2022-11-16 10:56:20,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-16 10:56:20,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:56:20,118 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] [2022-11-16 10:56:20,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:20,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:20,339 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:56:20,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:20,340 INFO L85 PathProgramCache]: Analyzing trace with hash -751775534, now seen corresponding path program 1 times [2022-11-16 10:56:20,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 10:56:20,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618939139] [2022-11-16 10:56:20,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:20,342 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 [2022-11-16 10:56:20,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 10:56:20,342 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 10:56:20,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:21,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 1549 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 10:56:21,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:56:21,647 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-16 10:56:21,647 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 10:56:21,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 10:56:21,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618939139] [2022-11-16 10:56:21,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618939139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:56:21,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:56:21,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 10:56:21,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219155899] [2022-11-16 10:56:21,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:56:21,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 10:56:21,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 10:56:21,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 10:56:21,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-16 10:56:21,649 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) [2022-11-16 10:56:21,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 10:56:21,909 INFO L93 Difference]: Finished difference Result 131 states and 177 transitions. [2022-11-16 10:56:21,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 10:56:21,910 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 [2022-11-16 10:56:21,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 10:56:21,912 INFO L225 Difference]: With dead ends: 131 [2022-11-16 10:56:21,912 INFO L226 Difference]: Without dead ends: 129 [2022-11-16 10:56:21,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-16 10:56:21,913 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 [2022-11-16 10:56:21,913 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] [2022-11-16 10:56:21,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-11-16 10:56:21,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 128. [2022-11-16 10:56:21,928 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) [2022-11-16 10:56:21,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 174 transitions. [2022-11-16 10:56:21,929 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 174 transitions. Word has length 92 [2022-11-16 10:56:21,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 10:56:21,930 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 174 transitions. [2022-11-16 10:56:21,930 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) [2022-11-16 10:56:21,930 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 174 transitions. [2022-11-16 10:56:21,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-16 10:56:21,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 10:56:21,932 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] [2022-11-16 10:56:21,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:22,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:22,155 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 10:56:22,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:56:22,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1289038822, now seen corresponding path program 1 times [2022-11-16 10:56:22,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 10:56:22,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298452737] [2022-11-16 10:56:22,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:22,158 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 [2022-11-16 10:56:22,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 10:56:22,161 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 10:56:22,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 10:56:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:56:31,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 1558 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-16 10:56:31,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 10:56:31,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:56:31,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-16 10:56:36,016 INFO L321 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2022-11-16 10:56:36,017 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 [2022-11-16 10:56:36,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 10:56:36,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 10:56:36,044 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 10:56:36,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 10:56:36,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 10:56:36,048 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 10:56:36,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 10:56:36,096 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 [2022-11-16 10:56:37,797 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 37 proven. 16 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-16 10:56:37,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 10:56:39,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:56:39,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:56:39,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:56:39,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:56:39,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:56:39,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:56:39,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 10:56:39,590 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 10:56:39,590 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 [2022-11-16 10:56:39,832 WARN L833 $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 [2022-11-16 10:56:40,187 WARN L833 $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 [2022-11-16 10:56:40,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 10:56:40,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298452737] [2022-11-16 10:56:40,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1298452737] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 10:56:40,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1758406262] [2022-11-16 10:56:40,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:56:40,337 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-16 10:56:40,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/cvc4 [2022-11-16 10:56:40,342 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-16 10:56:40,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-16 11:09:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:33,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 1558 conjuncts, 51 conjunts are in the unsatisfiable core [2022-11-16 11:09:33,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:09:41,272 INFO L321 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2022-11-16 11:09:41,273 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 [2022-11-16 11:09:41,286 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:09:41,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:09:41,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:09:41,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:09:41,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:09:41,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:09:41,291 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-16 11:09:41,339 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 [2022-11-16 11:09:42,279 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 37 proven. 16 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-16 11:09:42,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 11:09:43,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:09:43,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:09:43,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:09:43,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:09:43,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:09:43,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:09:43,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 11:09:43,419 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-16 11:09:43,420 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 [2022-11-16 11:09:43,691 WARN L833 $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 [2022-11-16 11:09:44,158 WARN L833 $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 [2022-11-16 11:09:44,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1758406262] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 11:09:44,337 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 11:09:44,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 22 [2022-11-16 11:09:44,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515367774] [2022-11-16 11:09:44,338 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 11:09:44,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-16 11:09:44,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:09:44,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-16 11:09:44,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=551, Unknown=5, NotChecked=204, Total=870 [2022-11-16 11:09:44,341 INFO L87 Difference]: Start difference. First operand 128 states and 174 transitions. Second operand has 22 states, 22 states have (on average 3.409090909090909) internal successors, (75), 21 states have internal predecessors, (75), 10 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (16), 9 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-16 11:09:52,676 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 [] [2022-11-16 11:09:55,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:09:57,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:09:57,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:57,729 INFO L93 Difference]: Finished difference Result 285 states and 384 transitions. [2022-11-16 11:09:57,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-16 11:09:57,734 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.409090909090909) internal successors, (75), 21 states have internal predecessors, (75), 10 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (16), 9 states have call predecessors, (16), 8 states have call successors, (16) Word has length 96 [2022-11-16 11:09:57,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:57,737 INFO L225 Difference]: With dead ends: 285 [2022-11-16 11:09:57,737 INFO L226 Difference]: Without dead ends: 199 [2022-11-16 11:09:57,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 169 SyntacticMatches, 35 SemanticMatches, 32 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=140, Invalid=741, Unknown=5, NotChecked=236, Total=1122 [2022-11-16 11:09:57,739 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 64 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 260 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:57,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1265 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 187 Invalid, 3 Unknown, 260 Unchecked, 11.7s Time] [2022-11-16 11:09:57,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-16 11:09:57,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 186. [2022-11-16 11:09:57,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 122 states have (on average 1.1967213114754098) internal successors, (146), 128 states have internal predecessors, (146), 46 states have call successors, (46), 16 states have call predecessors, (46), 17 states have return successors, (58), 41 states have call predecessors, (58), 43 states have call successors, (58) [2022-11-16 11:09:57,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 250 transitions. [2022-11-16 11:09:57,771 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 250 transitions. Word has length 96 [2022-11-16 11:09:57,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:57,772 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 250 transitions. [2022-11-16 11:09:57,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.409090909090909) internal successors, (75), 21 states have internal predecessors, (75), 10 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (16), 9 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-16 11:09:57,772 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 250 transitions. [2022-11-16 11:09:57,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 11:09:57,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:57,775 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] [2022-11-16 11:09:57,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:09:58,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 11:09:58,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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 [2022-11-16 11:09:58,193 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:09:58,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:58,194 INFO L85 PathProgramCache]: Analyzing trace with hash -857006711, now seen corresponding path program 1 times [2022-11-16 11:09:58,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:09:58,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873544180] [2022-11-16 11:09:58,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:58,196 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 [2022-11-16 11:09:58,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:09:58,197 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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) [2022-11-16 11:09:58,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdc294f0-4b01-4ec6-8ef1-e0e6e45fa4c6/bin/uautomizer-tPACEb0tL8/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