./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 69a4e17497471d2fff231bad199d28dc26e616d1fdaf7fc57a8b45b8dfdd40ce --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:08:30,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:08:30,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:08:30,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:08:30,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:08:30,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:08:30,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:08:30,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:08:30,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:08:30,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:08:30,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:08:30,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:08:30,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:08:30,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:08:30,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:08:30,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:08:30,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:08:30,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:08:30,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:08:30,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:08:30,744 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:08:30,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:08:30,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:08:30,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:08:30,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:08:30,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:08:30,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:08:30,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:08:30,761 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:08:30,762 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:08:30,763 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:08:30,764 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:08:30,765 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:08:30,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:08:30,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:08:30,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:08:30,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:08:30,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:08:30,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:08:30,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:08:30,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:08:30,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:08:30,809 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:08:30,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:08:30,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:08:30,813 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:08:30,814 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:08:30,814 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:08:30,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:08:30,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:08:30,815 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:08:30,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:08:30,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:08:30,817 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:08:30,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:08:30,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:08:30,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:08:30,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:08:30,818 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:08:30,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:08:30,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:08:30,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:08:30,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:08:30,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:08:30,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:08:30,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:08:30,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:08:30,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:08:30,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:08:30,820 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:08:30,820 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:08:30,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:08:30,821 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_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69a4e17497471d2fff231bad199d28dc26e616d1fdaf7fc57a8b45b8dfdd40ce [2022-11-18 20:08:31,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:08:31,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:08:31,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:08:31,167 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:08:31,168 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:08:31,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i [2022-11-18 20:08:31,243 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/data/c32510f54/b4034eee65f9461ca343c4eb1a204b0f/FLAG15ff477b5 [2022-11-18 20:08:32,114 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:08:32,115 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i [2022-11-18 20:08:32,155 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/data/c32510f54/b4034eee65f9461ca343c4eb1a204b0f/FLAG15ff477b5 [2022-11-18 20:08:32,564 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/data/c32510f54/b4034eee65f9461ca343c4eb1a204b0f [2022-11-18 20:08:32,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:08:32,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:08:32,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:08:32,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:08:32,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:08:32,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:08:32" (1/1) ... [2022-11-18 20:08:32,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c3c8ecc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:32, skipping insertion in model container [2022-11-18 20:08:32,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:08:32" (1/1) ... [2022-11-18 20:08:32,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:08:32,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:08:33,001 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i[4496,4509] [2022-11-18 20:08:33,009 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i[4556,4569] [2022-11-18 20:08:34,019 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:34,020 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:34,021 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:34,021 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:34,023 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:34,059 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:34,060 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:34,061 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:34,062 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:34,529 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 20:08:34,530 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 20:08:34,531 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 20:08:34,532 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 20:08:34,534 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 20:08:34,535 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 20:08:34,536 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 20:08:34,536 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 20:08:34,537 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 20:08:34,538 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 20:08:34,738 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 20:08:34,938 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:34,943 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:35,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:08:35,145 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:08:35,159 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i[4496,4509] [2022-11-18 20:08:35,159 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/sv-benchmarks/c/aws-c-common/aws_string_eq_byte_buf_harness.i[4556,4569] [2022-11-18 20:08:35,197 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:35,197 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:35,198 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:35,198 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:35,199 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:35,205 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:35,205 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:35,206 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:35,207 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:35,236 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-18 20:08:35,237 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-18 20:08:35,238 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-18 20:08:35,238 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-18 20:08:35,239 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-18 20:08:35,240 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-18 20:08:35,240 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-18 20:08:35,241 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-18 20:08:35,241 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-18 20:08:35,242 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-18 20:08:35,263 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-18 20:08:35,335 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:35,337 WARN L1568 CHandler]: Possible shadowing of function index [2022-11-18 20:08:35,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:08:35,742 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:08:35,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:35 WrapperNode [2022-11-18 20:08:35,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:08:35,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:08:35,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:08:35,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:08:35,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:35" (1/1) ... [2022-11-18 20:08:35,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:35" (1/1) ... [2022-11-18 20:08:35,990 INFO L138 Inliner]: procedures = 693, calls = 2791, calls flagged for inlining = 61, calls inlined = 8, statements flattened = 873 [2022-11-18 20:08:35,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:08:35,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:08:35,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:08:35,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:08:36,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:35" (1/1) ... [2022-11-18 20:08:36,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:35" (1/1) ... [2022-11-18 20:08:36,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:35" (1/1) ... [2022-11-18 20:08:36,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:35" (1/1) ... [2022-11-18 20:08:36,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:35" (1/1) ... [2022-11-18 20:08:36,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:35" (1/1) ... [2022-11-18 20:08:36,092 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:35" (1/1) ... [2022-11-18 20:08:36,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:35" (1/1) ... [2022-11-18 20:08:36,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:08:36,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:08:36,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:08:36,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:08:36,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:35" (1/1) ... [2022-11-18 20:08:36,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:08:36,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:08:36,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:08:36,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:08:36,181 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2022-11-18 20:08:36,182 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2022-11-18 20:08:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure aws_byte_buf_is_valid [2022-11-18 20:08:36,182 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_byte_buf_is_valid [2022-11-18 20:08:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_string_is_allocated_bounded_length [2022-11-18 20:08:36,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_string_is_allocated_bounded_length [2022-11-18 20:08:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-18 20:08:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:08:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-18 20:08:36,183 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-18 20:08:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:08:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 20:08:36,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 20:08:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:08:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:08:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:08:36,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:08:36,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:08:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-18 20:08:36,184 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-18 20:08:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 20:08:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 20:08:36,184 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 20:08:36,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:08:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:08:36,205 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_eq [2022-11-18 20:08:36,205 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_eq [2022-11-18 20:08:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:08:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-18 20:08:36,206 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-18 20:08:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-18 20:08:36,206 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-18 20:08:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:08:36,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:08:36,581 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:08:36,583 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:08:37,971 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:08:37,984 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:08:37,984 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:08:37,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:08:37 BoogieIcfgContainer [2022-11-18 20:08:37,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:08:37,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:08:37,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:08:37,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:08:37,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:08:32" (1/3) ... [2022-11-18 20:08:37,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716d88ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:08:37, skipping insertion in model container [2022-11-18 20:08:37,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:08:35" (2/3) ... [2022-11-18 20:08:37,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@716d88ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:08:37, skipping insertion in model container [2022-11-18 20:08:37,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:08:37" (3/3) ... [2022-11-18 20:08:37,999 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_eq_byte_buf_harness.i [2022-11-18 20:08:38,019 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:08:38,019 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:08:38,114 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:08:38,121 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;@2990c518, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:08:38,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:08:38,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 87 states have (on average 1.264367816091954) internal successors, (110), 88 states have internal predecessors, (110), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2022-11-18 20:08:38,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-18 20:08:38,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:08:38,143 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-18 20:08:38,144 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:08:38,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:38,153 INFO L85 PathProgramCache]: Analyzing trace with hash 39505431, now seen corresponding path program 1 times [2022-11-18 20:08:38,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:38,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191843636] [2022-11-18 20:08:38,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:38,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:38,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:08:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:38,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:08:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:38,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:08:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:38,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:08:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:39,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:39,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:08:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:39,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:08:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:39,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 20:08:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:39,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:08:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:39,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:08:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:39,110 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-18 20:08:39,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:39,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191843636] [2022-11-18 20:08:39,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191843636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:39,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:39,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:08:39,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789835861] [2022-11-18 20:08:39,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:39,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:08:39,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:39,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:08:39,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:08:39,161 INFO L87 Difference]: Start difference. First operand has 130 states, 87 states have (on average 1.264367816091954) internal successors, (110), 88 states have internal predecessors, (110), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-18 20:08:39,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:08:39,556 INFO L93 Difference]: Finished difference Result 251 states and 348 transitions. [2022-11-18 20:08:39,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:08:39,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 71 [2022-11-18 20:08:39,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:08:39,568 INFO L225 Difference]: With dead ends: 251 [2022-11-18 20:08:39,568 INFO L226 Difference]: Without dead ends: 125 [2022-11-18 20:08:39,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:08:39,575 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 57 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:08:39,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 162 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:08:39,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-11-18 20:08:39,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2022-11-18 20:08:39,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 83 states have (on average 1.2530120481927711) internal successors, (104), 84 states have internal predecessors, (104), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2022-11-18 20:08:39,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 165 transitions. [2022-11-18 20:08:39,623 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 165 transitions. Word has length 71 [2022-11-18 20:08:39,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:08:39,625 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 165 transitions. [2022-11-18 20:08:39,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-18 20:08:39,626 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 165 transitions. [2022-11-18 20:08:39,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-18 20:08:39,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:08:39,629 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2022-11-18 20:08:39,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:08:39,630 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:08:39,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:39,630 INFO L85 PathProgramCache]: Analyzing trace with hash 899154193, now seen corresponding path program 1 times [2022-11-18 20:08:39,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:39,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657994653] [2022-11-18 20:08:39,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:39,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:40,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:08:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:40,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:08:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:40,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:08:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:40,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:08:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:40,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:40,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:40,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:08:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:40,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-18 20:08:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:40,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 20:08:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:40,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:08:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:40,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 20:08:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:40,531 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-18 20:08:40,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:40,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657994653] [2022-11-18 20:08:40,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657994653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:40,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:40,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:08:40,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201002813] [2022-11-18 20:08:40,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:40,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:08:40,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:40,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:08:40,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:08:40,539 INFO L87 Difference]: Start difference. First operand 125 states and 165 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-18 20:08:41,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:08:41,077 INFO L93 Difference]: Finished difference Result 211 states and 280 transitions. [2022-11-18 20:08:41,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:08:41,079 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 71 [2022-11-18 20:08:41,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:08:41,082 INFO L225 Difference]: With dead ends: 211 [2022-11-18 20:08:41,083 INFO L226 Difference]: Without dead ends: 128 [2022-11-18 20:08:41,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:08:41,087 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 108 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:08:41,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 344 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:08:41,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-18 20:08:41,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2022-11-18 20:08:41,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 85 states have (on average 1.2470588235294118) internal successors, (106), 87 states have internal predecessors, (106), 31 states have call successors, (31), 10 states have call predecessors, (31), 11 states have return successors, (31), 30 states have call predecessors, (31), 30 states have call successors, (31) [2022-11-18 20:08:41,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 168 transitions. [2022-11-18 20:08:41,103 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 168 transitions. Word has length 71 [2022-11-18 20:08:41,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:08:41,103 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 168 transitions. [2022-11-18 20:08:41,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-18 20:08:41,104 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 168 transitions. [2022-11-18 20:08:41,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-18 20:08:41,106 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:08:41,106 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:08:41,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:08:41,107 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:08:41,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:41,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1350542876, now seen corresponding path program 1 times [2022-11-18 20:08:41,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:41,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383947056] [2022-11-18 20:08:41,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:41,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:41,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:08:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:41,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:08:41,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:41,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:08:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:41,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:08:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:41,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:41,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:08:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:41,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 20:08:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:41,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:08:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:41,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 20:08:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:41,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:08:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:41,829 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-11-18 20:08:41,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:41,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383947056] [2022-11-18 20:08:41,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383947056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:41,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:41,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:08:41,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454662291] [2022-11-18 20:08:41,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:41,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:08:41,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:41,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:08:41,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:08:41,832 INFO L87 Difference]: Start difference. First operand 128 states and 168 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-18 20:08:42,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:08:42,303 INFO L93 Difference]: Finished difference Result 219 states and 291 transitions. [2022-11-18 20:08:42,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:08:42,304 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 77 [2022-11-18 20:08:42,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:08:42,306 INFO L225 Difference]: With dead ends: 219 [2022-11-18 20:08:42,306 INFO L226 Difference]: Without dead ends: 163 [2022-11-18 20:08:42,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:08:42,307 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 68 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:08:42,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 319 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:08:42,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-18 20:08:42,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 161. [2022-11-18 20:08:42,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 106 states have (on average 1.2452830188679245) internal successors, (132), 108 states have internal predecessors, (132), 43 states have call successors, (43), 10 states have call predecessors, (43), 11 states have return successors, (44), 42 states have call predecessors, (44), 42 states have call successors, (44) [2022-11-18 20:08:42,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 219 transitions. [2022-11-18 20:08:42,337 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 219 transitions. Word has length 77 [2022-11-18 20:08:42,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:08:42,338 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 219 transitions. [2022-11-18 20:08:42,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-18 20:08:42,338 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 219 transitions. [2022-11-18 20:08:42,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-18 20:08:42,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:08:42,349 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:08:42,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:08:42,349 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:08:42,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:42,350 INFO L85 PathProgramCache]: Analyzing trace with hash 32555997, now seen corresponding path program 1 times [2022-11-18 20:08:42,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:42,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688742623] [2022-11-18 20:08:42,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:42,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:43,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:08:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:43,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:08:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:43,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:08:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:43,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:08:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:43,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:43,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:08:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:43,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 20:08:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:43,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:08:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:43,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 20:08:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:43,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:08:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:43,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-18 20:08:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:43,538 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-18 20:08:43,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:43,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688742623] [2022-11-18 20:08:43,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688742623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:43,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:43,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 20:08:43,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627730701] [2022-11-18 20:08:43,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:43,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:08:43,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:43,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:08:43,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:08:43,541 INFO L87 Difference]: Start difference. First operand 161 states and 219 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 20:08:44,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:08:44,209 INFO L93 Difference]: Finished difference Result 172 states and 233 transitions. [2022-11-18 20:08:44,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:08:44,210 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 89 [2022-11-18 20:08:44,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:08:44,213 INFO L225 Difference]: With dead ends: 172 [2022-11-18 20:08:44,213 INFO L226 Difference]: Without dead ends: 165 [2022-11-18 20:08:44,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:08:44,214 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 84 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 20:08:44,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 648 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 20:08:44,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-18 20:08:44,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-11-18 20:08:44,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 109 states have (on average 1.238532110091743) internal successors, (135), 112 states have internal predecessors, (135), 43 states have call successors, (43), 10 states have call predecessors, (43), 12 states have return successors, (48), 42 states have call predecessors, (48), 42 states have call successors, (48) [2022-11-18 20:08:44,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 226 transitions. [2022-11-18 20:08:44,235 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 226 transitions. Word has length 89 [2022-11-18 20:08:44,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:08:44,236 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 226 transitions. [2022-11-18 20:08:44,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 20:08:44,236 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 226 transitions. [2022-11-18 20:08:44,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-18 20:08:44,238 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:08:44,238 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:08:44,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:08:44,239 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:08:44,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:44,240 INFO L85 PathProgramCache]: Analyzing trace with hash 581239205, now seen corresponding path program 1 times [2022-11-18 20:08:44,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:44,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925727781] [2022-11-18 20:08:44,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:44,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:45,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:08:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:45,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:08:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:45,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:08:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:45,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:08:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:45,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:45,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:45,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:08:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:45,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 20:08:45,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:45,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:08:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:45,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 20:08:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:45,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:08:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:45,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-18 20:08:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:45,382 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-18 20:08:45,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:45,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925727781] [2022-11-18 20:08:45,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925727781] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:45,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:45,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:08:45,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543246414] [2022-11-18 20:08:45,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:45,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:08:45,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:45,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:08:45,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:08:45,385 INFO L87 Difference]: Start difference. First operand 165 states and 226 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 20:08:45,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:08:45,905 INFO L93 Difference]: Finished difference Result 300 states and 420 transitions. [2022-11-18 20:08:45,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:08:45,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 93 [2022-11-18 20:08:45,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:08:45,908 INFO L225 Difference]: With dead ends: 300 [2022-11-18 20:08:45,908 INFO L226 Difference]: Without dead ends: 190 [2022-11-18 20:08:45,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:08:45,910 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 137 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:08:45,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 314 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:08:45,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-11-18 20:08:45,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 170. [2022-11-18 20:08:45,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 114 states have (on average 1.2456140350877194) internal successors, (142), 117 states have internal predecessors, (142), 43 states have call successors, (43), 10 states have call predecessors, (43), 12 states have return successors, (48), 42 states have call predecessors, (48), 42 states have call successors, (48) [2022-11-18 20:08:45,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 233 transitions. [2022-11-18 20:08:45,927 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 233 transitions. Word has length 93 [2022-11-18 20:08:45,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:08:45,927 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 233 transitions. [2022-11-18 20:08:45,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 20:08:45,928 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 233 transitions. [2022-11-18 20:08:45,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-18 20:08:45,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:08:45,929 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:08:45,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:08:45,930 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:08:45,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:45,930 INFO L85 PathProgramCache]: Analyzing trace with hash 839404643, now seen corresponding path program 1 times [2022-11-18 20:08:45,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:45,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823450671] [2022-11-18 20:08:45,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:45,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:47,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:08:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:47,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:08:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:48,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:08:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:48,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:08:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:48,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:48,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:08:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:48,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 20:08:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:48,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:08:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:48,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 20:08:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:48,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:08:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:48,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-18 20:08:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:48,322 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-18 20:08:48,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:48,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823450671] [2022-11-18 20:08:48,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823450671] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:08:48,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668692839] [2022-11-18 20:08:48,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:48,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:08:48,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:08:48,327 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:08:48,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:08:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:48,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 2597 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 20:08:48,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:08:49,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 20:08:49,551 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:08:49,551 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:08:49,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668692839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:49,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:08:49,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 20 [2022-11-18 20:08:49,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338875059] [2022-11-18 20:08:49,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:49,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:08:49,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:49,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:08:49,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:08:49,554 INFO L87 Difference]: Start difference. First operand 170 states and 233 transitions. Second operand has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 9 states have internal predecessors, (59), 4 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-18 20:08:49,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:08:49,633 INFO L93 Difference]: Finished difference Result 311 states and 423 transitions. [2022-11-18 20:08:49,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:08:49,634 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 9 states have internal predecessors, (59), 4 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 93 [2022-11-18 20:08:49,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:08:49,635 INFO L225 Difference]: With dead ends: 311 [2022-11-18 20:08:49,636 INFO L226 Difference]: Without dead ends: 189 [2022-11-18 20:08:49,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=353, Unknown=0, NotChecked=0, Total=420 [2022-11-18 20:08:49,637 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 32 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:08:49,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 792 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 29 Unchecked, 0.0s Time] [2022-11-18 20:08:49,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-11-18 20:08:49,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 186. [2022-11-18 20:08:49,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 130 states have (on average 1.2538461538461538) internal successors, (163), 132 states have internal predecessors, (163), 43 states have call successors, (43), 11 states have call predecessors, (43), 12 states have return successors, (46), 42 states have call predecessors, (46), 42 states have call successors, (46) [2022-11-18 20:08:49,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 252 transitions. [2022-11-18 20:08:49,655 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 252 transitions. Word has length 93 [2022-11-18 20:08:49,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:08:49,656 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 252 transitions. [2022-11-18 20:08:49,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.363636363636363) internal successors, (59), 9 states have internal predecessors, (59), 4 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-18 20:08:49,656 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 252 transitions. [2022-11-18 20:08:49,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-18 20:08:49,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:08:49,660 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:08:49,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:08:49,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:08:49,869 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:08:49,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:49,869 INFO L85 PathProgramCache]: Analyzing trace with hash -2068777243, now seen corresponding path program 1 times [2022-11-18 20:08:49,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:49,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967545480] [2022-11-18 20:08:49,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:49,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:50,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:08:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:50,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:08:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:50,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:08:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:50,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:08:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:50,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:50,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:08:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:50,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-18 20:08:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:50,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:08:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:50,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 20:08:50,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:50,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-18 20:08:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:50,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-18 20:08:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:50,317 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-18 20:08:50,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:50,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967545480] [2022-11-18 20:08:50,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967545480] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:08:50,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799509805] [2022-11-18 20:08:50,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:50,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:08:50,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:08:50,320 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:08:50,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:08:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:50,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 2592 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:08:50,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:08:50,925 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-18 20:08:50,926 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:08:50,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799509805] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:50,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:08:50,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-11-18 20:08:50,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338099789] [2022-11-18 20:08:50,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:50,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:08:50,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:50,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:08:50,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:08:50,929 INFO L87 Difference]: Start difference. First operand 186 states and 252 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:08:50,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:08:50,964 INFO L93 Difference]: Finished difference Result 311 states and 425 transitions. [2022-11-18 20:08:50,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:08:50,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 93 [2022-11-18 20:08:50,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:08:50,969 INFO L225 Difference]: With dead ends: 311 [2022-11-18 20:08:50,969 INFO L226 Difference]: Without dead ends: 195 [2022-11-18 20:08:50,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:08:50,971 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 20 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:08:50,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 487 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:08:50,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-18 20:08:50,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 178. [2022-11-18 20:08:50,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 123 states have (on average 1.2520325203252032) internal successors, (154), 124 states have internal predecessors, (154), 43 states have call successors, (43), 11 states have call predecessors, (43), 11 states have return successors, (44), 42 states have call predecessors, (44), 42 states have call successors, (44) [2022-11-18 20:08:50,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 241 transitions. [2022-11-18 20:08:50,993 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 241 transitions. Word has length 93 [2022-11-18 20:08:50,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:08:50,995 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 241 transitions. [2022-11-18 20:08:50,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:08:50,995 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 241 transitions. [2022-11-18 20:08:50,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-18 20:08:50,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:08:50,998 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:08:51,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:08:51,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 20:08:51,209 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:08:51,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:51,210 INFO L85 PathProgramCache]: Analyzing trace with hash 302071913, now seen corresponding path program 1 times [2022-11-18 20:08:51,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:51,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769004993] [2022-11-18 20:08:51,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:51,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:52,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:08:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:52,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:08:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:52,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:08:52,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:52,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:08:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:52,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:52,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:08:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:52,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 20:08:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:52,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 20:08:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:52,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-18 20:08:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:52,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-11-18 20:08:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:52,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 20:08:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:52,362 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-11-18 20:08:52,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:52,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769004993] [2022-11-18 20:08:52,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769004993] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:08:52,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602589119] [2022-11-18 20:08:52,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:52,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:08:52,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:08:52,364 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:08:52,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:08:52,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:52,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 2604 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:08:52,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:08:53,043 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-18 20:08:53,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:08:53,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602589119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:53,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:08:53,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 11 [2022-11-18 20:08:53,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391899438] [2022-11-18 20:08:53,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:53,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:08:53,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:53,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:08:53,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:08:53,046 INFO L87 Difference]: Start difference. First operand 178 states and 241 transitions. Second operand has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-18 20:08:53,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:08:53,228 INFO L93 Difference]: Finished difference Result 302 states and 411 transitions. [2022-11-18 20:08:53,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:08:53,229 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 97 [2022-11-18 20:08:53,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:08:53,231 INFO L225 Difference]: With dead ends: 302 [2022-11-18 20:08:53,231 INFO L226 Difference]: Without dead ends: 186 [2022-11-18 20:08:53,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:08:53,233 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 13 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:08:53,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1167 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:08:53,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-18 20:08:53,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 183. [2022-11-18 20:08:53,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 127 states have (on average 1.2440944881889764) internal successors, (158), 129 states have internal predecessors, (158), 43 states have call successors, (43), 11 states have call predecessors, (43), 12 states have return successors, (47), 42 states have call predecessors, (47), 42 states have call successors, (47) [2022-11-18 20:08:53,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 248 transitions. [2022-11-18 20:08:53,290 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 248 transitions. Word has length 97 [2022-11-18 20:08:53,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:08:53,291 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 248 transitions. [2022-11-18 20:08:53,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-18 20:08:53,291 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 248 transitions. [2022-11-18 20:08:53,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-18 20:08:53,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:08:53,296 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:08:53,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:08:53,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:08:53,506 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:08:53,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:53,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1510879250, now seen corresponding path program 1 times [2022-11-18 20:08:53,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:53,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810204599] [2022-11-18 20:08:53,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:53,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:53,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:08:53,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:53,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:08:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:53,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:08:53,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:53,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:08:53,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:53,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:53,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:53,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:08:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:53,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:08:53,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:53,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 20:08:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:53,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 20:08:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:53,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:08:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:53,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:08:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:53,982 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-18 20:08:53,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:53,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810204599] [2022-11-18 20:08:53,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810204599] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:08:53,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788276054] [2022-11-18 20:08:53,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:53,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:08:53,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:08:53,985 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:08:54,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:08:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:54,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 2609 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:08:54,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:08:54,552 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 20:08:54,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:08:54,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788276054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:54,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:08:54,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-11-18 20:08:54,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294794998] [2022-11-18 20:08:54,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:54,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:08:54,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:54,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:08:54,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:08:54,559 INFO L87 Difference]: Start difference. First operand 183 states and 248 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:08:54,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:08:54,594 INFO L93 Difference]: Finished difference Result 309 states and 423 transitions. [2022-11-18 20:08:54,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:08:54,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2022-11-18 20:08:54,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:08:54,596 INFO L225 Difference]: With dead ends: 309 [2022-11-18 20:08:54,596 INFO L226 Difference]: Without dead ends: 186 [2022-11-18 20:08:54,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:08:54,599 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 9 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:08:54,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 480 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:08:54,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-18 20:08:54,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 183. [2022-11-18 20:08:54,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 127 states have (on average 1.2283464566929134) internal successors, (156), 129 states have internal predecessors, (156), 43 states have call successors, (43), 11 states have call predecessors, (43), 12 states have return successors, (47), 42 states have call predecessors, (47), 42 states have call successors, (47) [2022-11-18 20:08:54,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 246 transitions. [2022-11-18 20:08:54,618 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 246 transitions. Word has length 99 [2022-11-18 20:08:54,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:08:54,618 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 246 transitions. [2022-11-18 20:08:54,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:08:54,619 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 246 transitions. [2022-11-18 20:08:54,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-18 20:08:54,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:08:54,620 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:08:54,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:08:54,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:08:54,836 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:08:54,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:54,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1932962354, now seen corresponding path program 1 times [2022-11-18 20:08:54,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:54,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678894158] [2022-11-18 20:08:54,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:54,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:55,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:08:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:55,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:08:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:55,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:08:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:55,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:08:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:55,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:55,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:55,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:08:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:55,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:08:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:55,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 20:08:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:55,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 20:08:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:55,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:08:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:55,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:08:55,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:55,258 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-18 20:08:55,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:55,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678894158] [2022-11-18 20:08:55,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678894158] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:08:55,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942308752] [2022-11-18 20:08:55,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:55,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:08:55,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:08:55,260 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:08:55,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:08:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:55,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 2611 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:08:55,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:08:55,837 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-18 20:08:55,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:08:55,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942308752] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:55,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:08:55,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-11-18 20:08:55,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080899863] [2022-11-18 20:08:55,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:55,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:08:55,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:55,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:08:55,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:08:55,840 INFO L87 Difference]: Start difference. First operand 183 states and 246 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:08:55,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:08:55,874 INFO L93 Difference]: Finished difference Result 315 states and 430 transitions. [2022-11-18 20:08:55,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:08:55,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2022-11-18 20:08:55,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:08:55,877 INFO L225 Difference]: With dead ends: 315 [2022-11-18 20:08:55,877 INFO L226 Difference]: Without dead ends: 192 [2022-11-18 20:08:55,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:08:55,879 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 34 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:08:55,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 478 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:08:55,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-11-18 20:08:55,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 179. [2022-11-18 20:08:55,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 123 states have (on average 1.2113821138211383) internal successors, (149), 125 states have internal predecessors, (149), 43 states have call successors, (43), 11 states have call predecessors, (43), 12 states have return successors, (47), 42 states have call predecessors, (47), 42 states have call successors, (47) [2022-11-18 20:08:55,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 239 transitions. [2022-11-18 20:08:55,893 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 239 transitions. Word has length 99 [2022-11-18 20:08:55,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:08:55,893 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 239 transitions. [2022-11-18 20:08:55,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-18 20:08:55,894 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 239 transitions. [2022-11-18 20:08:55,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-18 20:08:55,896 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:08:55,896 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:08:55,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:08:56,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:08:56,105 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:08:56,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:56,106 INFO L85 PathProgramCache]: Analyzing trace with hash -400430284, now seen corresponding path program 1 times [2022-11-18 20:08:56,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:56,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899770646] [2022-11-18 20:08:56,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:56,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:58,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:08:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:58,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:08:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:58,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:08:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:58,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:08:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:58,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:58,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:08:58,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:58,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:08:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:58,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 20:08:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:58,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 20:08:58,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:58,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:08:58,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:58,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:08:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:58,906 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-18 20:08:58,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:58,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899770646] [2022-11-18 20:08:58,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899770646] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:08:58,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594445912] [2022-11-18 20:08:58,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:58,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:08:58,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:08:58,909 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:08:58,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:08:59,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:59,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 2606 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 20:08:59,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:09:00,526 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 32 proven. 13 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:09:00,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:09:00,955 INFO L321 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-11-18 20:09:00,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 19 [2022-11-18 20:09:00,982 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-18 20:09:00,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594445912] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:09:00,983 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:09:00,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 9] total 25 [2022-11-18 20:09:00,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514951460] [2022-11-18 20:09:00,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:09:00,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:09:00,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:09:00,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:09:00,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=508, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:09:00,986 INFO L87 Difference]: Start difference. First operand 179 states and 239 transitions. Second operand has 25 states, 25 states have (on average 5.24) internal successors, (131), 24 states have internal predecessors, (131), 5 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-18 20:09:02,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:09:02,917 INFO L93 Difference]: Finished difference Result 235 states and 302 transitions. [2022-11-18 20:09:02,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-18 20:09:02,918 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.24) internal successors, (131), 24 states have internal predecessors, (131), 5 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) Word has length 99 [2022-11-18 20:09:02,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:09:02,919 INFO L225 Difference]: With dead ends: 235 [2022-11-18 20:09:02,919 INFO L226 Difference]: Without dead ends: 216 [2022-11-18 20:09:02,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 196 SyntacticMatches, 10 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=237, Invalid=1023, Unknown=0, NotChecked=0, Total=1260 [2022-11-18 20:09:02,921 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 305 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 1140 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 481 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:09:02,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 848 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1140 Invalid, 0 Unknown, 481 Unchecked, 1.3s Time] [2022-11-18 20:09:02,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-18 20:09:02,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 191. [2022-11-18 20:09:02,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 133 states have (on average 1.2030075187969924) internal successors, (160), 134 states have internal predecessors, (160), 43 states have call successors, (43), 14 states have call predecessors, (43), 14 states have return successors, (47), 42 states have call predecessors, (47), 42 states have call successors, (47) [2022-11-18 20:09:02,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 250 transitions. [2022-11-18 20:09:02,940 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 250 transitions. Word has length 99 [2022-11-18 20:09:02,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:09:02,941 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 250 transitions. [2022-11-18 20:09:02,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.24) internal successors, (131), 24 states have internal predecessors, (131), 5 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-18 20:09:02,941 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 250 transitions. [2022-11-18 20:09:02,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-18 20:09:02,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:09:02,944 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:09:02,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:09:03,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 20:09:03,153 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:09:03,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:09:03,153 INFO L85 PathProgramCache]: Analyzing trace with hash 768159994, now seen corresponding path program 1 times [2022-11-18 20:09:03,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:09:03,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082070521] [2022-11-18 20:09:03,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:09:03,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:09:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:05,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:09:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:05,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:09:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:05,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:09:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:05,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:09:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:05,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:05,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:09:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:05,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:09:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:05,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 20:09:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:05,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 20:09:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:05,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:09:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:05,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:09:05,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:05,543 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-18 20:09:05,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:09:05,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082070521] [2022-11-18 20:09:05,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082070521] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:09:05,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103673399] [2022-11-18 20:09:05,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:09:05,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:09:05,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:09:05,547 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:09:05,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:09:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 2603 conjuncts, 37 conjunts are in the unsatisfiable core [2022-11-18 20:09:06,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:09:07,555 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 38 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:09:07,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:09:08,470 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-18 20:09:08,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 1 [2022-11-18 20:09:08,656 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-11-18 20:09:08,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 36 [2022-11-18 20:09:08,826 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-18 20:09:08,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103673399] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:09:08,827 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:09:08,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 12] total 30 [2022-11-18 20:09:08,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952193714] [2022-11-18 20:09:08,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:09:08,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-18 20:09:08,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:09:08,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-18 20:09:08,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=752, Unknown=0, NotChecked=0, Total=870 [2022-11-18 20:09:08,830 INFO L87 Difference]: Start difference. First operand 191 states and 250 transitions. Second operand has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 29 states have internal predecessors, (130), 6 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-18 20:09:12,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:09:12,348 INFO L93 Difference]: Finished difference Result 288 states and 396 transitions. [2022-11-18 20:09:12,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-18 20:09:12,352 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 29 states have internal predecessors, (130), 6 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) Word has length 99 [2022-11-18 20:09:12,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:09:12,355 INFO L225 Difference]: With dead ends: 288 [2022-11-18 20:09:12,355 INFO L226 Difference]: Without dead ends: 276 [2022-11-18 20:09:12,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 194 SyntacticMatches, 10 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=515, Invalid=2241, Unknown=0, NotChecked=0, Total=2756 [2022-11-18 20:09:12,357 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 314 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 1359 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 2098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 664 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:09:12,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 1130 Invalid, 2098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1359 Invalid, 0 Unknown, 664 Unchecked, 1.8s Time] [2022-11-18 20:09:12,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-11-18 20:09:12,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 274. [2022-11-18 20:09:12,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 190 states have (on average 1.2052631578947368) internal successors, (229), 191 states have internal predecessors, (229), 65 states have call successors, (65), 17 states have call predecessors, (65), 18 states have return successors, (86), 65 states have call predecessors, (86), 64 states have call successors, (86) [2022-11-18 20:09:12,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 380 transitions. [2022-11-18 20:09:12,388 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 380 transitions. Word has length 99 [2022-11-18 20:09:12,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:09:12,389 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 380 transitions. [2022-11-18 20:09:12,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.333333333333333) internal successors, (130), 29 states have internal predecessors, (130), 6 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) [2022-11-18 20:09:12,389 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 380 transitions. [2022-11-18 20:09:12,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-18 20:09:12,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:09:12,391 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:09:12,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:09:12,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:09:12,608 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:09:12,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:09:12,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1026325432, now seen corresponding path program 1 times [2022-11-18 20:09:12,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:09:12,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927127872] [2022-11-18 20:09:12,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:09:12,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:09:12,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:13,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:09:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:13,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:09:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:13,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:09:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:13,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:09:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:13,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:13,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:09:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:13,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:09:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:13,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 20:09:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:13,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 20:09:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:13,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:09:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:13,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:09:13,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:13,414 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-18 20:09:13,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:09:13,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927127872] [2022-11-18 20:09:13,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927127872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:09:13,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:09:13,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:09:13,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53355746] [2022-11-18 20:09:13,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:09:13,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:09:13,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:09:13,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:09:13,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:09:13,416 INFO L87 Difference]: Start difference. First operand 274 states and 380 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 20:09:13,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:09:13,845 INFO L93 Difference]: Finished difference Result 417 states and 564 transitions. [2022-11-18 20:09:13,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:09:13,846 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 99 [2022-11-18 20:09:13,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:09:13,847 INFO L225 Difference]: With dead ends: 417 [2022-11-18 20:09:13,848 INFO L226 Difference]: Without dead ends: 267 [2022-11-18 20:09:13,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:09:13,849 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 95 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:09:13,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 314 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:09:13,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2022-11-18 20:09:13,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2022-11-18 20:09:13,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 184 states have (on average 1.201086956521739) internal successors, (221), 184 states have internal predecessors, (221), 65 states have call successors, (65), 17 states have call predecessors, (65), 17 states have return successors, (80), 65 states have call predecessors, (80), 64 states have call successors, (80) [2022-11-18 20:09:13,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 366 transitions. [2022-11-18 20:09:13,875 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 366 transitions. Word has length 99 [2022-11-18 20:09:13,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:09:13,875 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 366 transitions. [2022-11-18 20:09:13,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 20:09:13,876 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 366 transitions. [2022-11-18 20:09:13,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-18 20:09:13,877 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:09:13,878 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:09:13,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:09:13,878 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:09:13,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:09:13,879 INFO L85 PathProgramCache]: Analyzing trace with hash -2140021892, now seen corresponding path program 1 times [2022-11-18 20:09:13,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:09:13,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667496793] [2022-11-18 20:09:13,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:09:13,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:09:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:16,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:09:16,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:16,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:09:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:16,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:09:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:16,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:09:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:16,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:16,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:16,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:09:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:16,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:09:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:16,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 20:09:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:16,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 20:09:16,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:16,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:09:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:16,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:09:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:17,275 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-18 20:09:17,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:09:17,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667496793] [2022-11-18 20:09:17,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667496793] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:09:17,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237588234] [2022-11-18 20:09:17,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:09:17,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:09:17,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:09:17,279 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:09:17,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:09:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:17,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 2608 conjuncts, 42 conjunts are in the unsatisfiable core [2022-11-18 20:09:17,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:09:19,252 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 38 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-18 20:09:19,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:09:20,070 INFO L321 Elim1Store]: treesize reduction 15, result has 69.4 percent of original size [2022-11-18 20:09:20,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 49 [2022-11-18 20:09:20,388 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-18 20:09:20,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237588234] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:09:20,388 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:09:20,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 12] total 30 [2022-11-18 20:09:20,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837471685] [2022-11-18 20:09:20,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:09:20,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-18 20:09:20,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:09:20,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-18 20:09:20,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=750, Unknown=0, NotChecked=0, Total=870 [2022-11-18 20:09:20,391 INFO L87 Difference]: Start difference. First operand 267 states and 366 transitions. Second operand has 30 states, 30 states have (on average 4.1) internal successors, (123), 29 states have internal predecessors, (123), 5 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-18 20:09:23,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:09:23,467 INFO L93 Difference]: Finished difference Result 290 states and 389 transitions. [2022-11-18 20:09:23,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-18 20:09:23,468 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.1) internal successors, (123), 29 states have internal predecessors, (123), 5 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) Word has length 99 [2022-11-18 20:09:23,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:09:23,470 INFO L225 Difference]: With dead ends: 290 [2022-11-18 20:09:23,470 INFO L226 Difference]: Without dead ends: 278 [2022-11-18 20:09:23,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 192 SyntacticMatches, 13 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=457, Invalid=1799, Unknown=0, NotChecked=0, Total=2256 [2022-11-18 20:09:23,472 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 316 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 259 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:09:23,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 883 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1347 Invalid, 0 Unknown, 259 Unchecked, 1.8s Time] [2022-11-18 20:09:23,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-11-18 20:09:23,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 260. [2022-11-18 20:09:23,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 178 states have (on average 1.202247191011236) internal successors, (214), 178 states have internal predecessors, (214), 65 states have call successors, (65), 16 states have call predecessors, (65), 16 states have return successors, (75), 65 states have call predecessors, (75), 64 states have call successors, (75) [2022-11-18 20:09:23,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 354 transitions. [2022-11-18 20:09:23,510 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 354 transitions. Word has length 99 [2022-11-18 20:09:23,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:09:23,511 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 354 transitions. [2022-11-18 20:09:23,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.1) internal successors, (123), 29 states have internal predecessors, (123), 5 states have call successors, (27), 4 states have call predecessors, (27), 7 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2022-11-18 20:09:23,511 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 354 transitions. [2022-11-18 20:09:23,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-18 20:09:23,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:09:23,513 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:09:23,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:09:23,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:09:23,723 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:09:23,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:09:23,723 INFO L85 PathProgramCache]: Analyzing trace with hash 964318207, now seen corresponding path program 1 times [2022-11-18 20:09:23,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:09:23,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115534034] [2022-11-18 20:09:23,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:09:23,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:09:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:09:24,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:09:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:09:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:09:24,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:24,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:09:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:09:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 20:09:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 20:09:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:09:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:09:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,731 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-18 20:09:24,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:09:24,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115534034] [2022-11-18 20:09:24,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115534034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:09:24,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:09:24,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 20:09:24,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094426712] [2022-11-18 20:09:24,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:09:24,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 20:09:24,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:09:24,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 20:09:24,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:09:24,733 INFO L87 Difference]: Start difference. First operand 260 states and 354 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 20:09:25,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:09:25,427 INFO L93 Difference]: Finished difference Result 271 states and 367 transitions. [2022-11-18 20:09:25,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 20:09:25,428 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2022-11-18 20:09:25,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:09:25,430 INFO L225 Difference]: With dead ends: 271 [2022-11-18 20:09:25,430 INFO L226 Difference]: Without dead ends: 242 [2022-11-18 20:09:25,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:09:25,431 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 93 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:09:25,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 813 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 20:09:25,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-11-18 20:09:25,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 238. [2022-11-18 20:09:25,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 164 states have (on average 1.1890243902439024) internal successors, (195), 165 states have internal predecessors, (195), 57 states have call successors, (57), 16 states have call predecessors, (57), 16 states have return successors, (62), 56 states have call predecessors, (62), 55 states have call successors, (62) [2022-11-18 20:09:25,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 314 transitions. [2022-11-18 20:09:25,467 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 314 transitions. Word has length 101 [2022-11-18 20:09:25,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:09:25,468 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 314 transitions. [2022-11-18 20:09:25,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 8 states have internal predecessors, (52), 2 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-18 20:09:25,468 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 314 transitions. [2022-11-18 20:09:25,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-18 20:09:25,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:09:25,470 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:09:25,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:09:25,470 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:09:25,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:09:25,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1368667261, now seen corresponding path program 1 times [2022-11-18 20:09:25,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:09:25,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697256005] [2022-11-18 20:09:25,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:09:25,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:09:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:27,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:09:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:27,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 20:09:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:27,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 20:09:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:27,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-18 20:09:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:28,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:28,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 20:09:28,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:28,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 20:09:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:28,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 20:09:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:28,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 20:09:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:28,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 20:09:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:28,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-11-18 20:09:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:28,376 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-18 20:09:28,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:09:28,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697256005] [2022-11-18 20:09:28,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697256005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:09:28,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:09:28,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-18 20:09:28,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599042097] [2022-11-18 20:09:28,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:09:28,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-18 20:09:28,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:09:28,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 20:09:28,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:09:28,379 INFO L87 Difference]: Start difference. First operand 238 states and 314 transitions. Second operand has 17 states, 16 states have (on average 3.875) internal successors, (62), 13 states have internal predecessors, (62), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-18 20:09:29,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:09:29,814 INFO L93 Difference]: Finished difference Result 248 states and 325 transitions. [2022-11-18 20:09:29,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-18 20:09:29,815 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.875) internal successors, (62), 13 states have internal predecessors, (62), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) Word has length 101 [2022-11-18 20:09:29,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:09:29,817 INFO L225 Difference]: With dead ends: 248 [2022-11-18 20:09:29,817 INFO L226 Difference]: Without dead ends: 196 [2022-11-18 20:09:29,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2022-11-18 20:09:29,819 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 154 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:09:29,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 930 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-18 20:09:29,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-18 20:09:29,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 146. [2022-11-18 20:09:29,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 103 states have (on average 1.174757281553398) internal successors, (121), 104 states have internal predecessors, (121), 29 states have call successors, (29), 13 states have call predecessors, (29), 13 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2022-11-18 20:09:29,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 179 transitions. [2022-11-18 20:09:29,854 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 179 transitions. Word has length 101 [2022-11-18 20:09:29,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:09:29,855 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 179 transitions. [2022-11-18 20:09:29,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.875) internal successors, (62), 13 states have internal predecessors, (62), 5 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2022-11-18 20:09:29,855 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 179 transitions. [2022-11-18 20:09:29,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-18 20:09:29,857 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:09:29,857 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:09:29,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:09:29,858 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:09:29,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:09:29,859 INFO L85 PathProgramCache]: Analyzing trace with hash -171267616, now seen corresponding path program 1 times [2022-11-18 20:09:29,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:09:29,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574205506] [2022-11-18 20:09:29,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:09:29,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:09:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:30,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:09:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:30,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 20:09:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:30,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:30,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:09:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:30,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 20:09:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:30,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:31,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:09:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:31,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 20:09:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:31,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 20:09:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:31,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-18 20:09:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:31,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:31,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 20:09:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:31,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-18 20:09:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:31,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 20:09:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:31,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 20:09:31,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:31,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 20:09:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:31,101 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2022-11-18 20:09:31,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:09:31,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574205506] [2022-11-18 20:09:31,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574205506] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:09:31,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351582157] [2022-11-18 20:09:31,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:09:31,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:09:31,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:09:31,106 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:09:31,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 20:09:31,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:31,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 2715 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 20:09:31,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:09:31,822 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-18 20:09:31,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:09:31,994 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-11-18 20:09:31,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351582157] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:09:31,994 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:09:31,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 11] total 23 [2022-11-18 20:09:31,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909500343] [2022-11-18 20:09:31,995 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:09:31,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-18 20:09:31,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:09:31,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-18 20:09:31,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=458, Unknown=0, NotChecked=0, Total=506 [2022-11-18 20:09:31,997 INFO L87 Difference]: Start difference. First operand 146 states and 179 transitions. Second operand has 23 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 17 states have internal predecessors, (80), 9 states have call successors, (25), 4 states have call predecessors, (25), 6 states have return successors, (23), 11 states have call predecessors, (23), 9 states have call successors, (23) [2022-11-18 20:09:32,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:09:32,719 INFO L93 Difference]: Finished difference Result 164 states and 193 transitions. [2022-11-18 20:09:32,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 20:09:32,720 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 17 states have internal predecessors, (80), 9 states have call successors, (25), 4 states have call predecessors, (25), 6 states have return successors, (23), 11 states have call predecessors, (23), 9 states have call successors, (23) Word has length 117 [2022-11-18 20:09:32,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:09:32,720 INFO L225 Difference]: With dead ends: 164 [2022-11-18 20:09:32,720 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:09:32,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=134, Invalid=1056, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 20:09:32,722 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 49 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:09:32,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 256 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:09:32,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:09:32,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:09:32,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:09:32,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:09:32,723 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2022-11-18 20:09:32,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:09:32,724 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:09:32,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 17 states have internal predecessors, (80), 9 states have call successors, (25), 4 states have call predecessors, (25), 6 states have return successors, (23), 11 states have call predecessors, (23), 9 states have call successors, (23) [2022-11-18 20:09:32,724 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:09:32,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:09:32,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 20:09:32,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:09:32,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 20:09:32,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:09:34,510 INFO L895 garLoopResultBuilder]: At program point L6815(lines 6806 6816) the Hoare annotation is: (and (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_#res#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16))) [2022-11-18 20:09:34,511 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthEXIT(lines 6800 6804) no Hoare annotation was computed. [2022-11-18 20:09:34,511 INFO L895 garLoopResultBuilder]: At program point L6810(line 6810) the Hoare annotation is: (and (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16))) [2022-11-18 20:09:34,511 INFO L899 garLoopResultBuilder]: For program point L6807-1(line 6807) no Hoare annotation was computed. [2022-11-18 20:09:34,511 INFO L895 garLoopResultBuilder]: At program point L6807(line 6807) the Hoare annotation is: (let ((.cse1 (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16)))) (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (let ((.cse0 (* 18446744073709551616 (div |ensure_string_is_allocated_bounded_length_~len~1#1| 18446744073709551616)))) (and (<= (+ .cse0 1) |ensure_string_is_allocated_bounded_length_~len~1#1|) (<= |ensure_string_is_allocated_bounded_length_~len~1#1| (+ .cse0 15)))) .cse1) (or .cse1 (<= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1| (+ 15 (* 18446744073709551616 (div (+ (- 1) |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~len#1|) 18446744073709551616))))) (= |old(#valid)| |#valid|))) [2022-11-18 20:09:34,511 INFO L899 garLoopResultBuilder]: For program point L6810-3(line 6810) no Hoare annotation was computed. [2022-11-18 20:09:34,511 INFO L895 garLoopResultBuilder]: At program point L6810-2(line 6810) the Hoare annotation is: (and (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (not (= |ensure_string_is_allocated_bounded_length_ensure_string_is_allocated_~str~0#1.base| 0)) (not (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| 16))) [2022-11-18 20:09:34,511 INFO L899 garLoopResultBuilder]: For program point L6810-1(lines 6810 6811) no Hoare annotation was computed. [2022-11-18 20:09:34,511 INFO L895 garLoopResultBuilder]: At program point L6802(line 6802) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2022-11-18 20:09:34,512 INFO L895 garLoopResultBuilder]: At program point ensure_string_is_allocated_bounded_lengthENTRY(lines 6800 6804) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2022-11-18 20:09:34,512 INFO L899 garLoopResultBuilder]: For program point L6810-5(lines 6810 6811) no Hoare annotation was computed. [2022-11-18 20:09:34,512 INFO L899 garLoopResultBuilder]: For program point L6801-1(line 6801) no Hoare annotation was computed. [2022-11-18 20:09:34,512 INFO L895 garLoopResultBuilder]: At program point L6801(line 6801) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_real)| |#memory_real|) (or (= |ensure_string_is_allocated_bounded_length_#in~max_size#1| |ensure_string_is_allocated_bounded_length_~max_size#1|) (= 16 |ensure_string_is_allocated_bounded_length_~max_size#1|)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) [2022-11-18 20:09:34,512 INFO L899 garLoopResultBuilder]: For program point L6802-1(line 6802) no Hoare annotation was computed. [2022-11-18 20:09:34,512 INFO L899 garLoopResultBuilder]: For program point ensure_string_is_allocated_bounded_lengthFINAL(lines 6800 6804) no Hoare annotation was computed. [2022-11-18 20:09:34,512 INFO L895 garLoopResultBuilder]: At program point bounded_mallocENTRY(lines 6882 6887) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-11-18 20:09:34,513 INFO L899 garLoopResultBuilder]: For program point bounded_mallocFINAL(lines 6882 6887) no Hoare annotation was computed. [2022-11-18 20:09:34,513 INFO L899 garLoopResultBuilder]: For program point bounded_mallocEXIT(lines 6882 6887) no Hoare annotation was computed. [2022-11-18 20:09:34,514 INFO L899 garLoopResultBuilder]: For program point L6883-1(lines 6883 6885) no Hoare annotation was computed. [2022-11-18 20:09:34,514 INFO L895 garLoopResultBuilder]: At program point L6883(lines 6883 6885) the Hoare annotation is: (and (= |bounded_malloc_#in~size| bounded_malloc_~size) (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-11-18 20:09:34,514 INFO L902 garLoopResultBuilder]: At program point aws_array_eqENTRY(lines 7684 7704) the Hoare annotation is: true [2022-11-18 20:09:34,514 INFO L899 garLoopResultBuilder]: For program point L7697(lines 7697 7701) no Hoare annotation was computed. [2022-11-18 20:09:34,514 INFO L899 garLoopResultBuilder]: For program point aws_array_eqEXIT(lines 7684 7704) no Hoare annotation was computed. [2022-11-18 20:09:34,514 INFO L902 garLoopResultBuilder]: At program point L7686(line 7686) the Hoare annotation is: true [2022-11-18 20:09:34,514 INFO L899 garLoopResultBuilder]: For program point L7688(lines 7685 7704) no Hoare annotation was computed. [2022-11-18 20:09:34,514 INFO L899 garLoopResultBuilder]: For program point aws_array_eqFINAL(lines 7684 7704) no Hoare annotation was computed. [2022-11-18 20:09:34,514 INFO L902 garLoopResultBuilder]: At program point L7686-1(line 7686) the Hoare annotation is: true [2022-11-18 20:09:34,514 INFO L899 garLoopResultBuilder]: For program point L7364-6(line 7364) no Hoare annotation was computed. [2022-11-18 20:09:34,515 INFO L899 garLoopResultBuilder]: For program point L7364-4(line 7364) no Hoare annotation was computed. [2022-11-18 20:09:34,515 INFO L899 garLoopResultBuilder]: For program point L7364-3(line 7364) no Hoare annotation was computed. [2022-11-18 20:09:34,515 INFO L899 garLoopResultBuilder]: For program point L7364-8(line 7364) no Hoare annotation was computed. [2022-11-18 20:09:34,515 INFO L902 garLoopResultBuilder]: At program point aws_byte_buf_is_validENTRY(lines 7359 7365) the Hoare annotation is: true [2022-11-18 20:09:34,515 INFO L899 garLoopResultBuilder]: For program point aws_byte_buf_is_validFINAL(lines 7359 7365) no Hoare annotation was computed. [2022-11-18 20:09:34,515 INFO L899 garLoopResultBuilder]: For program point L7361-3(line 7361) no Hoare annotation was computed. [2022-11-18 20:09:34,516 INFO L899 garLoopResultBuilder]: For program point L7361-1(line 7361) no Hoare annotation was computed. [2022-11-18 20:09:34,516 INFO L899 garLoopResultBuilder]: For program point aws_byte_buf_is_validEXIT(lines 7359 7365) no Hoare annotation was computed. [2022-11-18 20:09:34,516 INFO L899 garLoopResultBuilder]: For program point L7361(lines 7361 7364) no Hoare annotation was computed. [2022-11-18 20:09:34,516 INFO L899 garLoopResultBuilder]: For program point L7361-7(lines 7361 7364) no Hoare annotation was computed. [2022-11-18 20:09:34,516 INFO L899 garLoopResultBuilder]: For program point L7361-6(lines 7361 7362) no Hoare annotation was computed. [2022-11-18 20:09:34,516 INFO L899 garLoopResultBuilder]: For program point L7361-4(lines 7361 7362) no Hoare annotation was computed. [2022-11-18 20:09:34,516 INFO L899 garLoopResultBuilder]: For program point L7361-11(lines 7361 7364) no Hoare annotation was computed. [2022-11-18 20:09:34,517 INFO L899 garLoopResultBuilder]: For program point L7361-9(lines 7361 7364) no Hoare annotation was computed. [2022-11-18 20:09:34,517 INFO L899 garLoopResultBuilder]: For program point L7364-2(line 7364) no Hoare annotation was computed. [2022-11-18 20:09:34,517 INFO L899 garLoopResultBuilder]: For program point L7364(line 7364) no Hoare annotation was computed. [2022-11-18 20:09:34,517 INFO L899 garLoopResultBuilder]: For program point nondet_boolFINAL(line 261) no Hoare annotation was computed. [2022-11-18 20:09:34,517 INFO L899 garLoopResultBuilder]: For program point nondet_boolEXIT(line 261) no Hoare annotation was computed. [2022-11-18 20:09:34,517 INFO L902 garLoopResultBuilder]: At program point nondet_boolENTRY(line 261) the Hoare annotation is: true [2022-11-18 20:09:34,518 INFO L899 garLoopResultBuilder]: For program point L211-2(lines 210 212) no Hoare annotation was computed. [2022-11-18 20:09:34,518 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 210 212) the Hoare annotation is: true [2022-11-18 20:09:34,518 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2022-11-18 20:09:34,518 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 210 212) no Hoare annotation was computed. [2022-11-18 20:09:34,518 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorFINAL(lines 6889 6891) no Hoare annotation was computed. [2022-11-18 20:09:34,518 INFO L899 garLoopResultBuilder]: For program point can_fail_allocatorEXIT(lines 6889 6891) no Hoare annotation was computed. [2022-11-18 20:09:34,518 INFO L902 garLoopResultBuilder]: At program point can_fail_allocatorENTRY(lines 6889 6891) the Hoare annotation is: true [2022-11-18 20:09:34,519 INFO L902 garLoopResultBuilder]: At program point aws_string_is_validENTRY(lines 6252 6257) the Hoare annotation is: true [2022-11-18 20:09:34,519 INFO L899 garLoopResultBuilder]: For program point L6256-2(line 6256) no Hoare annotation was computed. [2022-11-18 20:09:34,519 INFO L899 garLoopResultBuilder]: For program point L6256(line 6256) no Hoare annotation was computed. [2022-11-18 20:09:34,519 INFO L899 garLoopResultBuilder]: For program point L6256-5(line 6256) no Hoare annotation was computed. [2022-11-18 20:09:34,519 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validFINAL(lines 6252 6257) no Hoare annotation was computed. [2022-11-18 20:09:34,519 INFO L899 garLoopResultBuilder]: For program point L6256-3(line 6256) no Hoare annotation was computed. [2022-11-18 20:09:34,520 INFO L899 garLoopResultBuilder]: For program point aws_string_is_validEXIT(lines 6252 6257) no Hoare annotation was computed. [2022-11-18 20:09:34,520 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tEXIT(line 266) no Hoare annotation was computed. [2022-11-18 20:09:34,520 INFO L902 garLoopResultBuilder]: At program point nondet_uint64_tENTRY(line 266) the Hoare annotation is: true [2022-11-18 20:09:34,520 INFO L899 garLoopResultBuilder]: For program point nondet_uint64_tFINAL(line 266) no Hoare annotation was computed. [2022-11-18 20:09:34,520 INFO L895 garLoopResultBuilder]: At program point L9408(line 9408) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse4 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse1 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse2 (<= .cse4 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse4) 18446744073709551616))))) (.cse5 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse3 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) 8) 0)) .cse1 .cse2 (<= .cse3 (+ .cse4 (* 18446744073709551616 (div (+ (- .cse4) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse3 18446744073709551616)))) .cse5 .cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) (and .cse0 .cse1 .cse2 .cse5 (<= 0 (+ .cse3 (* 18446744073709551616 (div (- .cse3) 18446744073709551616)))) .cse6))))) [2022-11-18 20:09:34,521 INFO L899 garLoopResultBuilder]: For program point L7100-1(lines 7099 7112) no Hoare annotation was computed. [2022-11-18 20:09:34,521 INFO L899 garLoopResultBuilder]: For program point L9408-1(line 9408) no Hoare annotation was computed. [2022-11-18 20:09:34,521 INFO L895 garLoopResultBuilder]: At program point L7100(line 7100) the Hoare annotation is: false [2022-11-18 20:09:34,521 INFO L895 garLoopResultBuilder]: At program point L9408-2(lines 9386 9409) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse4 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse1 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse2 (<= .cse4 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse4) 18446744073709551616))))) (.cse5 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse3 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) 8) 0)) .cse1 .cse2 (<= .cse3 (+ .cse4 (* 18446744073709551616 (div (+ (- .cse4) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse3 18446744073709551616)))) .cse5 .cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) (and .cse0 .cse1 .cse2 .cse5 (<= 0 (+ .cse3 (* 18446744073709551616 (div (- .cse3) 18446744073709551616)))) .cse6))))) [2022-11-18 20:09:34,521 INFO L899 garLoopResultBuilder]: For program point L6613-1(line 6613) no Hoare annotation was computed. [2022-11-18 20:09:34,521 INFO L895 garLoopResultBuilder]: At program point L6613(line 6613) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2022-11-18 20:09:34,522 INFO L899 garLoopResultBuilder]: For program point L9388(line 9388) no Hoare annotation was computed. [2022-11-18 20:09:34,522 INFO L899 garLoopResultBuilder]: For program point L6609(lines 6609 6614) no Hoare annotation was computed. [2022-11-18 20:09:34,522 INFO L895 garLoopResultBuilder]: At program point L9388-2(line 9388) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse4 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse1 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse2 (<= .cse4 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse4) 18446744073709551616))))) (.cse5 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse3 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) 8) 0)) .cse1 .cse2 (<= .cse3 (+ .cse4 (* 18446744073709551616 (div (+ (- .cse4) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse3 18446744073709551616)))) .cse5 .cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) (and .cse0 .cse1 .cse2 .cse5 (<= 0 (+ .cse3 (* 18446744073709551616 (div (- .cse3) 18446744073709551616)))) .cse6))))) [2022-11-18 20:09:34,522 INFO L895 garLoopResultBuilder]: At program point L9553(line 9553) the Hoare annotation is: false [2022-11-18 20:09:34,522 INFO L895 garLoopResultBuilder]: At program point L9553-1(line 9553) the Hoare annotation is: false [2022-11-18 20:09:34,523 INFO L899 garLoopResultBuilder]: For program point L9553-2(line 9553) no Hoare annotation was computed. [2022-11-18 20:09:34,523 INFO L899 garLoopResultBuilder]: For program point L9388-3(line 9388) no Hoare annotation was computed. [2022-11-18 20:09:34,523 INFO L895 garLoopResultBuilder]: At program point L9388-4(line 9388) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse4 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse1 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse2 (<= .cse4 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse4) 18446744073709551616))))) (.cse5 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse3 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) 8) 0)) .cse1 .cse2 (<= .cse3 (+ .cse4 (* 18446744073709551616 (div (+ (- .cse4) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse3 18446744073709551616)))) .cse5 .cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) (and .cse0 .cse1 .cse2 .cse5 (<= 0 (+ .cse3 (* 18446744073709551616 (div (- .cse3) 18446744073709551616)))) .cse6))))) [2022-11-18 20:09:34,523 INFO L899 garLoopResultBuilder]: For program point L9388-5(line 9388) no Hoare annotation was computed. [2022-11-18 20:09:34,523 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:09:34,524 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:09:34,524 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:09:34,524 INFO L895 garLoopResultBuilder]: At program point L6610(line 6610) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2022-11-18 20:09:34,524 INFO L902 garLoopResultBuilder]: At program point L9558(line 9558) the Hoare annotation is: true [2022-11-18 20:09:34,524 INFO L899 garLoopResultBuilder]: For program point L9389(line 9389) no Hoare annotation was computed. [2022-11-18 20:09:34,524 INFO L899 garLoopResultBuilder]: For program point L6610-3(lines 6610 6612) no Hoare annotation was computed. [2022-11-18 20:09:34,525 INFO L895 garLoopResultBuilder]: At program point L9389-2(line 9389) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse4 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse1 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse2 (<= .cse4 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse4) 18446744073709551616))))) (.cse5 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse3 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) 8) 0)) .cse1 .cse2 (<= .cse3 (+ .cse4 (* 18446744073709551616 (div (+ (- .cse4) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse3 18446744073709551616)))) .cse5 .cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) (and .cse0 .cse1 .cse2 .cse5 (<= 0 (+ .cse3 (* 18446744073709551616 (div (- .cse3) 18446744073709551616)))) .cse6))))) [2022-11-18 20:09:34,525 INFO L899 garLoopResultBuilder]: For program point L6610-1(lines 6610 6612) no Hoare annotation was computed. [2022-11-18 20:09:34,525 INFO L895 garLoopResultBuilder]: At program point L9546(line 9546) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) (+ |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 8)) 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2022-11-18 20:09:34,525 INFO L899 garLoopResultBuilder]: For program point L9389-3(line 9389) no Hoare annotation was computed. [2022-11-18 20:09:34,526 INFO L895 garLoopResultBuilder]: At program point L7110(line 7110) the Hoare annotation is: false [2022-11-18 20:09:34,526 INFO L899 garLoopResultBuilder]: For program point L9538(lines 9538 9557) no Hoare annotation was computed. [2022-11-18 20:09:34,526 INFO L895 garLoopResultBuilder]: At program point L9546-1(line 9546) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse5 (select .cse7 16))) (let ((.cse1 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse2 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse3 (<= .cse5 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse5) 18446744073709551616))))) (.cse0 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse4 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 (<= |ULTIMATE.start_aws_string_eq_byte_buf_harness_#t~ret1340#1| 0) (<= 0 |ULTIMATE.start_aws_string_eq_byte_buf_harness_#t~ret1340#1|)) (and .cse1 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) 8) 0)) .cse2 .cse3 (<= .cse4 (+ .cse5 (* 18446744073709551616 (div (+ (- .cse5) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse4 18446744073709551616)))) .cse0 .cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) (and .cse1 .cse2 .cse3 .cse0 (<= 0 (+ .cse4 (* 18446744073709551616 (div (- .cse4) 18446744073709551616)))) .cse6))))) [2022-11-18 20:09:34,526 INFO L895 garLoopResultBuilder]: At program point L9389-4(line 9389) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse4 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse1 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse2 (<= .cse4 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse4) 18446744073709551616))))) (.cse5 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse3 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) 8) 0)) .cse1 .cse2 (<= .cse3 (+ .cse4 (* 18446744073709551616 (div (+ (- .cse4) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse3 18446744073709551616)))) .cse5 .cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) (and .cse0 .cse1 .cse2 .cse5 (<= 0 (+ .cse3 (* 18446744073709551616 (div (- .cse3) 18446744073709551616)))) .cse6))))) [2022-11-18 20:09:34,527 INFO L895 garLoopResultBuilder]: At program point L7106(line 7106) the Hoare annotation is: false [2022-11-18 20:09:34,527 INFO L899 garLoopResultBuilder]: For program point L9546-2(line 9546) no Hoare annotation was computed. [2022-11-18 20:09:34,527 INFO L899 garLoopResultBuilder]: For program point L9389-5(line 9389) no Hoare annotation was computed. [2022-11-18 20:09:34,527 INFO L899 garLoopResultBuilder]: For program point L7110-1(line 7110) no Hoare annotation was computed. [2022-11-18 20:09:34,527 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:09:34,527 INFO L899 garLoopResultBuilder]: For program point L7106-1(line 7106) no Hoare annotation was computed. [2022-11-18 20:09:34,527 INFO L895 garLoopResultBuilder]: At program point L9551(line 9551) the Hoare annotation is: false [2022-11-18 20:09:34,528 INFO L899 garLoopResultBuilder]: For program point L9390(lines 9390 9398) no Hoare annotation was computed. [2022-11-18 20:09:34,528 INFO L899 garLoopResultBuilder]: For program point L9551-1(line 9551) no Hoare annotation was computed. [2022-11-18 20:09:34,528 INFO L902 garLoopResultBuilder]: At program point L9539(line 9539) the Hoare annotation is: true [2022-11-18 20:09:34,528 INFO L899 garLoopResultBuilder]: For program point L9539-1(lines 9539 9540) no Hoare annotation was computed. [2022-11-18 20:09:34,528 INFO L899 garLoopResultBuilder]: For program point L7107-1(lines 7107 7109) no Hoare annotation was computed. [2022-11-18 20:09:34,528 INFO L895 garLoopResultBuilder]: At program point L7107(lines 7107 7109) the Hoare annotation is: false [2022-11-18 20:09:34,529 INFO L902 garLoopResultBuilder]: At program point L9539-2(line 9539) the Hoare annotation is: true [2022-11-18 20:09:34,529 INFO L899 garLoopResultBuilder]: For program point L9539-3(line 9539) no Hoare annotation was computed. [2022-11-18 20:09:34,529 INFO L899 garLoopResultBuilder]: For program point L7099(lines 7099 7112) no Hoare annotation was computed. [2022-11-18 20:09:34,529 INFO L899 garLoopResultBuilder]: For program point L9539-5(lines 9539 9540) no Hoare annotation was computed. [2022-11-18 20:09:34,529 INFO L895 garLoopResultBuilder]: At program point L9556(line 9556) the Hoare annotation is: (and (<= |ULTIMATE.start_aws_string_eq_byte_buf_harness_#t~ret1348#1| 1) (<= 1 |ULTIMATE.start_aws_string_eq_byte_buf_harness_#t~ret1348#1|) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) [2022-11-18 20:09:34,529 INFO L899 garLoopResultBuilder]: For program point L9556-1(line 9556) no Hoare annotation was computed. [2022-11-18 20:09:34,529 INFO L899 garLoopResultBuilder]: For program point L6612-1(line 6612) no Hoare annotation was computed. [2022-11-18 20:09:34,530 INFO L895 garLoopResultBuilder]: At program point L6612(line 6612) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) [2022-11-18 20:09:34,530 INFO L899 garLoopResultBuilder]: For program point L9399(lines 9399 9407) no Hoare annotation was computed. [2022-11-18 20:09:34,530 INFO L895 garLoopResultBuilder]: At program point L9548(line 9548) the Hoare annotation is: (let ((.cse7 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse4 (select .cse7 16))) (let ((.cse0 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0)) (.cse1 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0)) (.cse2 (<= .cse4 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse4) 18446744073709551616))))) (.cse5 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse3 (select .cse7 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and .cse0 (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) 8) 0)) .cse1 .cse2 (<= .cse3 (+ .cse4 (* 18446744073709551616 (div (+ (- .cse4) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse3 18446744073709551616)))) .cse5 .cse6 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) (and .cse0 .cse1 .cse2 .cse5 (<= 0 (+ .cse3 (* 18446744073709551616 (div (- .cse3) 18446744073709551616)))) .cse6))))) [2022-11-18 20:09:34,530 INFO L899 garLoopResultBuilder]: For program point L9548-1(line 9548) no Hoare annotation was computed. [2022-11-18 20:09:34,530 INFO L899 garLoopResultBuilder]: For program point L9548-2(lines 9548 9554) no Hoare annotation was computed. [2022-11-18 20:09:34,531 INFO L895 garLoopResultBuilder]: At program point L6600(lines 6598 6601) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0)) [2022-11-18 20:09:34,531 INFO L895 garLoopResultBuilder]: At program point L9544(line 9544) the Hoare annotation is: (and (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.base| 0) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~str~3#1.offset| 0) (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0)) (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0)) [2022-11-18 20:09:34,531 INFO L895 garLoopResultBuilder]: At program point L9548-4(lines 9548 9554) the Hoare annotation is: (let ((.cse5 (select |#memory_int| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|))) (let ((.cse2 (select .cse5 16))) (let ((.cse0 (<= .cse2 (+ 18446744073709551615 (* 18446744073709551616 (div (+ (- 1) .cse2) 18446744073709551616))))) (.cse3 (not (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| 0))) (.cse1 (select .cse5 |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset|)) (.cse4 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.offset| 0))) (or (and (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base|) 8) 0)) .cse0 (<= .cse1 (+ .cse2 (* 18446744073709551616 (div (+ (- .cse2) 18446744073709551615) 18446744073709551616)) (* 18446744073709551616 (div .cse1 18446744073709551616)))) .cse3 .cse4 (= |ULTIMATE.start_aws_string_eq_byte_buf_harness_~#buf~3#1.base| |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.base|) (= |ULTIMATE.start_ensure_byte_buf_has_allocated_buffer_member_~buf#1.offset| 0)) (and .cse0 .cse3 (<= 0 (+ .cse1 (* 18446744073709551616 (div (- .cse1) 18446744073709551616)))) .cse4))))) [2022-11-18 20:09:34,531 INFO L899 garLoopResultBuilder]: For program point L9544-1(line 9544) no Hoare annotation was computed. [2022-11-18 20:09:34,532 INFO L899 garLoopResultBuilder]: For program point L223(line 223) no Hoare annotation was computed. [2022-11-18 20:09:34,532 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 222 224) the Hoare annotation is: true [2022-11-18 20:09:34,532 INFO L899 garLoopResultBuilder]: For program point L223-1(line 223) no Hoare annotation was computed. [2022-11-18 20:09:34,532 INFO L899 garLoopResultBuilder]: For program point L223-3(lines 222 224) no Hoare annotation was computed. [2022-11-18 20:09:34,532 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 222 224) no Hoare annotation was computed. [2022-11-18 20:09:34,532 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 223) no Hoare annotation was computed. [2022-11-18 20:09:34,536 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:09:34,538 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:09:34,551 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 20:09:34,554 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 20:09:34,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:09:34 BoogieIcfgContainer [2022-11-18 20:09:34,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:09:34,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:09:34,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:09:34,558 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:09:34,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:08:37" (3/4) ... [2022-11-18 20:09:34,562 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:09:34,568 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ensure_string_is_allocated_bounded_length [2022-11-18 20:09:34,568 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bounded_malloc [2022-11-18 20:09:34,569 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_array_eq [2022-11-18 20:09:34,569 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_uint64_t [2022-11-18 20:09:34,569 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_byte_buf_is_valid [2022-11-18 20:09:34,569 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure nondet_bool [2022-11-18 20:09:34,569 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-11-18 20:09:34,570 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-18 20:09:34,570 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure can_fail_allocator [2022-11-18 20:09:34,570 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure aws_string_is_valid [2022-11-18 20:09:34,584 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 129 nodes and edges [2022-11-18 20:09:34,585 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 58 nodes and edges [2022-11-18 20:09:34,586 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-18 20:09:34,587 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-18 20:09:34,589 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-18 20:09:34,590 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 20:09:34,591 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:09:34,592 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:09:34,635 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\old(max_size) == max_size || 16 == max_size) && !(str == 0)) && !(\result == 0)) && !(\old(max_size) == 16) [2022-11-18 20:09:35,095 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:09:35,095 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:09:35,096 INFO L158 Benchmark]: Toolchain (without parser) took 62513.04ms. Allocated memory was 119.5MB in the beginning and 708.8MB in the end (delta: 589.3MB). Free memory was 95.3MB in the beginning and 450.7MB in the end (delta: -355.4MB). Peak memory consumption was 232.4MB. Max. memory is 16.1GB. [2022-11-18 20:09:35,096 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 119.5MB. Free memory was 95.2MB in the beginning and 95.2MB in the end (delta: 69.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:09:35,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3159.19ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 95.3MB in the beginning and 74.7MB in the end (delta: 20.7MB). Peak memory consumption was 99.6MB. Max. memory is 16.1GB. [2022-11-18 20:09:35,097 INFO L158 Benchmark]: Boogie Procedure Inliner took 248.22ms. Allocated memory is still 144.7MB. Free memory was 74.7MB in the beginning and 62.8MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:09:35,097 INFO L158 Benchmark]: Boogie Preprocessor took 111.57ms. Allocated memory is still 144.7MB. Free memory was 62.8MB in the beginning and 55.8MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 20:09:35,097 INFO L158 Benchmark]: RCFGBuilder took 1882.36ms. Allocated memory was 144.7MB in the beginning and 226.5MB in the end (delta: 81.8MB). Free memory was 55.1MB in the beginning and 137.9MB in the end (delta: -82.8MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2022-11-18 20:09:35,098 INFO L158 Benchmark]: TraceAbstraction took 56567.42ms. Allocated memory was 226.5MB in the beginning and 708.8MB in the end (delta: 482.3MB). Free memory was 136.9MB in the beginning and 582.9MB in the end (delta: -446.0MB). Peak memory consumption was 393.9MB. Max. memory is 16.1GB. [2022-11-18 20:09:35,098 INFO L158 Benchmark]: Witness Printer took 537.47ms. Allocated memory is still 708.8MB. Free memory was 582.9MB in the beginning and 450.7MB in the end (delta: 132.1MB). Peak memory consumption was 132.1MB. Max. memory is 16.1GB. [2022-11-18 20:09:35,100 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 119.5MB. Free memory was 95.2MB in the beginning and 95.2MB in the end (delta: 69.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3159.19ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 95.3MB in the beginning and 74.7MB in the end (delta: 20.7MB). Peak memory consumption was 99.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 248.22ms. Allocated memory is still 144.7MB. Free memory was 74.7MB in the beginning and 62.8MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 111.57ms. Allocated memory is still 144.7MB. Free memory was 62.8MB in the beginning and 55.8MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1882.36ms. Allocated memory was 144.7MB in the beginning and 226.5MB in the end (delta: 81.8MB). Free memory was 55.1MB in the beginning and 137.9MB in the end (delta: -82.8MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * TraceAbstraction took 56567.42ms. Allocated memory was 226.5MB in the beginning and 708.8MB in the end (delta: 482.3MB). Free memory was 136.9MB in the beginning and 582.9MB in the end (delta: -446.0MB). Peak memory consumption was 393.9MB. Max. memory is 16.1GB. * Witness Printer took 537.47ms. Allocated memory is still 708.8MB. Free memory was 582.9MB in the beginning and 450.7MB in the end (delta: 132.1MB). Peak memory consumption was 132.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 223]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 130 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.5s, OverallIterations: 17, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 14.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2016 SdHoareTripleChecker+Valid, 9.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1888 mSDsluCounter, 10365 SdHoareTripleChecker+Invalid, 8.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1433 IncrementalHoareTripleChecker+Unchecked, 8376 mSDsCounter, 506 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8375 IncrementalHoareTripleChecker+Invalid, 10314 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 506 mSolverCounterUnsat, 1989 mSDtfsCounter, 8375 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1939 GetRequests, 1618 SyntacticMatches, 34 SemanticMatches, 287 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1936 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=12, InterpolantAutomatonStates: 184, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 17 MinimizatonAttempts, 160 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 367 PreInvPairs, 403 NumberOfFragments, 1542 HoareAnnotationTreeSize, 367 FomulaSimplifications, 88 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 45 FomulaSimplificationsInter, 1584 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 5.7s SatisfiabilityAnalysisTime, 29.0s InterpolantComputationTime, 2492 NumberOfCodeBlocks, 2492 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2876 ConstructedInterpolants, 101 QuantifiedInterpolants, 15361 SizeOfPredicates, 76 NumberOfNonLiveVariables, 23545 ConjunctsInSsa, 185 ConjunctsInUnsatCore, 30 InterpolantComputations, 13 PerfectInterpolantSequences, 1804/1984 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6598]: Loop Invariant Derived loop invariant: ((str == 0 && str == 0) && !(buf == 0)) && buf == 0 - InvariantResult [Line: 9558]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9386]: Loop Invariant [2022-11-18 20:09:35,124 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2022-11-18 20:09:35,125 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: ((((((((str == 0 && !(#memory_$Pointer$[buf][8] == 0)) && str == 0) && unknown-#memory_int-unknown[buf][16] <= 18446744073709551615 + 18446744073709551616 * ((-1 + unknown-#memory_int-unknown[buf][16]) / 18446744073709551616)) && unknown-#memory_int-unknown[buf][buf] <= unknown-#memory_int-unknown[buf][16] + 18446744073709551616 * ((-unknown-#memory_int-unknown[buf][16] + 18446744073709551615) / 18446744073709551616) + 18446744073709551616 * (unknown-#memory_int-unknown[buf][buf] / 18446744073709551616)) && !(buf == 0)) && buf == 0) && buf == buf) && buf == 0) || (((((str == 0 && str == 0) && unknown-#memory_int-unknown[buf][16] <= 18446744073709551615 + 18446744073709551616 * ((-1 + unknown-#memory_int-unknown[buf][16]) / 18446744073709551616)) && !(buf == 0)) && 0 <= unknown-#memory_int-unknown[buf][buf] + 18446744073709551616 * (-unknown-#memory_int-unknown[buf][buf] / 18446744073709551616)) && buf == 0) - InvariantResult [Line: 6806]: Loop Invariant Derived loop invariant: (((\old(max_size) == max_size || 16 == max_size) && !(str == 0)) && !(\result == 0)) && !(\old(max_size) == 16) RESULT: Ultimate proved your program to be correct! [2022-11-18 20:09:35,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31cd2589-b476-4ec8-8cbf-38c7d52a0e82/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE