./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R --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 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 --- 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-38b53e6 [2022-11-25 17:01:40,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:01:40,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:01:40,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:01:40,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:01:40,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:01:40,047 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:01:40,049 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:01:40,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:01:40,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:01:40,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:01:40,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:01:40,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:01:40,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:01:40,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:01:40,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:01:40,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:01:40,063 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:01:40,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:01:40,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:01:40,071 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:01:40,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:01:40,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:01:40,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:01:40,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:01:40,081 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:01:40,082 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:01:40,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:01:40,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:01:40,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:01:40,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:01:40,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:01:40,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:01:40,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:01:40,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:01:40,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:01:40,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:01:40,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:01:40,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:01:40,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:01:40,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:01:40,097 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:01:40,123 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:01:40,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:01:40,124 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:01:40,124 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:01:40,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:01:40,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:01:40,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:01:40,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:01:40,127 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:01:40,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:01:40,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:01:40,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:01:40,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:01:40,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:01:40,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:01:40,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:01:40,129 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:01:40,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:01:40,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:01:40,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:01:40,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:01:40,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:01:40,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:01:40,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:01:40,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:01:40,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:01:40,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:01:40,133 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:01:40,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:01:40,133 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:01:40,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:01:40,134 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e3410638a547f2efce35a13c7d23c64ee660b1c493ec273ce9d4043edc218c3 [2022-11-25 17:01:40,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:01:40,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:01:40,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:01:40,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:01:40,477 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:01:40,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2022-11-25 17:01:43,768 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:01:44,344 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:01:44,347 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i [2022-11-25 17:01:44,393 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/data/c629220f7/8e8fc6d9cbcb43e28e2d67f4110b76d6/FLAGb77801062 [2022-11-25 17:01:44,412 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/data/c629220f7/8e8fc6d9cbcb43e28e2d67f4110b76d6 [2022-11-25 17:01:44,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:01:44,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:01:44,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:01:44,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:01:44,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:01:44,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:01:44" (1/1) ... [2022-11-25 17:01:44,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e89b513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:44, skipping insertion in model container [2022-11-25 17:01:44,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:01:44" (1/1) ... [2022-11-25 17:01:44,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:01:44,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:01:44,953 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2022-11-25 17:01:44,963 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2022-11-25 17:01:46,398 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:46,437 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:46,453 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:46,454 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:46,455 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:46,456 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:46,457 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:46,463 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:46,473 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:46,474 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:46,476 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:46,477 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:46,480 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:46,481 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:46,482 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:46,483 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:46,626 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:01:46,627 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:01:46,628 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:01:46,635 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 17:01:46,641 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 17:01:46,641 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 17:01:46,921 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:47,181 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 17:01:47,182 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 17:01:47,184 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 17:01:47,185 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 17:01:47,187 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 17:01:47,190 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 17:01:47,191 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 17:01:47,192 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 17:01:47,193 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 17:01:47,194 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 17:01:47,195 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 17:01:47,574 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 17:01:47,656 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:47,687 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 17:01:48,033 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,034 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,051 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:48,061 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,062 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,069 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,070 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,099 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,102 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,104 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,105 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:48,105 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,105 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,110 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,112 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,131 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:48,141 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:48,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:01:48,237 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:01:48,268 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4492,4505] [2022-11-25 17:01:48,269 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/sv-benchmarks/c/aws-c-common/aws_hash_table_put_harness.i[4552,4565] [2022-11-25 17:01:48,312 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:48,321 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:48,330 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,331 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,331 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,332 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,332 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,338 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:48,346 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,347 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,349 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,349 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,350 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,352 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,352 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,353 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,362 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:01:48,363 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:01:48,364 WARN L623 FunctionHandler]: Unknown extern function htonl [2022-11-25 17:01:48,370 WARN L623 FunctionHandler]: Unknown extern function ntohl [2022-11-25 17:01:48,372 WARN L623 FunctionHandler]: Unknown extern function htons [2022-11-25 17:01:48,372 WARN L623 FunctionHandler]: Unknown extern function ntohs [2022-11-25 17:01:48,375 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:48,398 WARN L623 FunctionHandler]: Unknown extern function my_abort [2022-11-25 17:01:48,399 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-11-25 17:01:48,401 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-11-25 17:01:48,402 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-11-25 17:01:48,403 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-11-25 17:01:48,405 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-11-25 17:01:48,406 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-11-25 17:01:48,409 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-11-25 17:01:48,410 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-11-25 17:01:48,410 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-11-25 17:01:48,411 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-11-25 17:01:48,448 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-11-25 17:01:48,466 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:48,494 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-11-25 17:01:48,570 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,572 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,578 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:48,580 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,581 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,585 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,586 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,602 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,603 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,603 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,604 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:48,604 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,604 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,605 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,605 WARN L1576 CHandler]: Possible shadowing of function index [2022-11-25 17:01:48,614 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:48,621 WARN L623 FunctionHandler]: Unknown extern function my_memset [2022-11-25 17:01:48,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:01:49,010 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:01:49,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:49 WrapperNode [2022-11-25 17:01:49,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:01:49,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:01:49,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:01:49,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:01:49,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:49" (1/1) ... [2022-11-25 17:01:49,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:49" (1/1) ... [2022-11-25 17:01:49,328 INFO L138 Inliner]: procedures = 775, calls = 2488, calls flagged for inlining = 70, calls inlined = 25, statements flattened = 1380 [2022-11-25 17:01:49,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:01:49,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:01:49,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:01:49,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:01:49,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:49" (1/1) ... [2022-11-25 17:01:49,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:49" (1/1) ... [2022-11-25 17:01:49,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:49" (1/1) ... [2022-11-25 17:01:49,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:49" (1/1) ... [2022-11-25 17:01:49,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:49" (1/1) ... [2022-11-25 17:01:49,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:49" (1/1) ... [2022-11-25 17:01:49,482 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:49" (1/1) ... [2022-11-25 17:01:49,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:49" (1/1) ... [2022-11-25 17:01:49,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:01:49,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:01:49,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:01:49,522 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:01:49,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:49" (1/1) ... [2022-11-25 17:01:49,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:01:49,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:01:49,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:01:49,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:01:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-25 17:01:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-11-25 17:01:49,623 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-11-25 17:01:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:01:49,624 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-11-25 17:01:49,624 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-11-25 17:01:49,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 17:01:49,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 17:01:49,629 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid [2022-11-25 17:01:49,629 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid [2022-11-25 17:01:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:01:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:01:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:01:49,630 INFO L130 BoogieDeclarations]: Found specification of procedure s_emplace_item [2022-11-25 17:01:49,631 INFO L138 BoogieDeclarations]: Found implementation of procedure s_emplace_item [2022-11-25 17:01:49,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:01:49,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:01:49,637 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-11-25 17:01:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-11-25 17:01:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-11-25 17:01:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-11-25 17:01:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-11-25 17:01:49,638 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-11-25 17:01:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:01:49,638 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2022-11-25 17:01:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2022-11-25 17:01:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:01:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2022-11-25 17:01:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2022-11-25 17:01:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:01:49,639 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_for [2022-11-25 17:01:49,639 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_for [2022-11-25 17:01:49,640 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two [2022-11-25 17:01:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two [2022-11-25 17:01:49,640 INFO L130 BoogieDeclarations]: Found specification of procedure s_update_template_size [2022-11-25 17:01:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure s_update_template_size [2022-11-25 17:01:49,640 INFO L130 BoogieDeclarations]: Found specification of procedure s_hash_keys_eq [2022-11-25 17:01:49,640 INFO L138 BoogieDeclarations]: Found implementation of procedure s_hash_keys_eq [2022-11-25 17:01:49,641 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_equals [2022-11-25 17:01:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_equals [2022-11-25 17:01:49,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:01:49,641 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-11-25 17:01:49,641 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-11-25 17:01:49,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-25 17:01:49,641 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_calloc [2022-11-25 17:01:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_calloc [2022-11-25 17:01:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-25 17:01:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes [2022-11-25 17:01:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes [2022-11-25 17:01:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 17:01:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 17:01:49,642 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_uninterpreted_hasher [2022-11-25 17:01:49,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_uninterpreted_hasher [2022-11-25 17:01:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure s_safe_eq_check [2022-11-25 17:01:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure s_safe_eq_check [2022-11-25 17:01:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure s_find_entry [2022-11-25 17:01:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure s_find_entry [2022-11-25 17:01:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 17:01:49,643 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 17:01:49,643 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid [2022-11-25 17:01:49,644 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid [2022-11-25 17:01:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 17:01:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-11-25 17:01:49,644 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-11-25 17:01:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-11-25 17:01:49,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-11-25 17:01:49,644 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2022-11-25 17:01:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2022-11-25 17:01:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure s_alloc_state [2022-11-25 17:01:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure s_alloc_state [2022-11-25 17:01:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 17:01:49,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-25 17:01:49,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:01:50,296 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:01:50,300 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:01:50,607 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume !true; [2022-11-25 17:01:50,652 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !true; [2022-11-25 17:01:51,511 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume !true; [2022-11-25 17:01:51,512 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !true; [2022-11-25 17:01:52,553 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:01:52,566 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:01:52,566 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-25 17:01:52,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:01:52 BoogieIcfgContainer [2022-11-25 17:01:52,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:01:52,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:01:52,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:01:52,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:01:52,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:01:44" (1/3) ... [2022-11-25 17:01:52,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9ef846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:01:52, skipping insertion in model container [2022-11-25 17:01:52,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:01:49" (2/3) ... [2022-11-25 17:01:52,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e9ef846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:01:52, skipping insertion in model container [2022-11-25 17:01:52,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:01:52" (3/3) ... [2022-11-25 17:01:52,581 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_hash_table_put_harness.i [2022-11-25 17:01:52,605 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:01:52,606 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:01:52,682 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:01:52,690 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;@fdcf317, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:01:52,691 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:01:52,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 357 states, 244 states have (on average 1.2745901639344261) internal successors, (311), 241 states have internal predecessors, (311), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2022-11-25 17:01:52,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-25 17:01:52,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:52,717 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:01:52,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:01:52,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:52,724 INFO L85 PathProgramCache]: Analyzing trace with hash -268334968, now seen corresponding path program 1 times [2022-11-25 17:01:52,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:52,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683308263] [2022-11-25 17:01:52,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:52,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:53,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:53,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683308263] [2022-11-25 17:01:53,442 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-25 17:01:53,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790098016] [2022-11-25 17:01:53,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:53,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:01:53,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:01:53,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:01:53,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:01:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:54,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 2839 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 17:01:54,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:01:54,519 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-11-25 17:01:54,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:01:54,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790098016] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:54,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:54,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:01:54,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587611624] [2022-11-25 17:01:54,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:54,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:01:54,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:54,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:01:54,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:01:54,601 INFO L87 Difference]: Start difference. First operand has 357 states, 244 states have (on average 1.2745901639344261) internal successors, (311), 241 states have internal predecessors, (311), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-25 17:01:54,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:54,742 INFO L93 Difference]: Finished difference Result 708 states and 1003 transitions. [2022-11-25 17:01:54,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:01:54,745 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 132 [2022-11-25 17:01:54,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:54,768 INFO L225 Difference]: With dead ends: 708 [2022-11-25 17:01:54,772 INFO L226 Difference]: Without dead ends: 351 [2022-11-25 17:01:54,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:01:54,792 INFO L413 NwaCegarLoop]: 472 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:54,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:01:54,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-11-25 17:01:54,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2022-11-25 17:01:54,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 235 states have (on average 1.2595744680851064) internal successors, (296), 236 states have internal predecessors, (296), 86 states have call successors, (86), 29 states have call predecessors, (86), 29 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2022-11-25 17:01:54,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 467 transitions. [2022-11-25 17:01:54,878 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 467 transitions. Word has length 132 [2022-11-25 17:01:54,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:54,880 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 467 transitions. [2022-11-25 17:01:54,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-25 17:01:54,881 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 467 transitions. [2022-11-25 17:01:54,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-25 17:01:54,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:54,884 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:01:54,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:01:55,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:01:55,098 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:01:55,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:55,099 INFO L85 PathProgramCache]: Analyzing trace with hash -2080773554, now seen corresponding path program 1 times [2022-11-25 17:01:55,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:55,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442830682] [2022-11-25 17:01:55,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:55,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:55,301 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:01:55,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1520751486] [2022-11-25 17:01:55,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:55,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:01:55,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:01:55,304 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:01:55,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:01:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:56,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 2839 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 17:01:56,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:01:56,329 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-11-25 17:01:56,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:01:56,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:01:56,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442830682] [2022-11-25 17:01:56,330 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 17:01:56,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520751486] [2022-11-25 17:01:56,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520751486] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:01:56,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:01:56,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:01:56,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421939881] [2022-11-25 17:01:56,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:01:56,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:01:56,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:01:56,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:01:56,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:01:56,335 INFO L87 Difference]: Start difference. First operand 351 states and 467 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-25 17:01:56,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:56,457 INFO L93 Difference]: Finished difference Result 698 states and 932 transitions. [2022-11-25 17:01:56,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:01:56,458 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 132 [2022-11-25 17:01:56,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:56,463 INFO L225 Difference]: With dead ends: 698 [2022-11-25 17:01:56,463 INFO L226 Difference]: Without dead ends: 356 [2022-11-25 17:01:56,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:01:56,466 INFO L413 NwaCegarLoop]: 464 mSDtfsCounter, 2 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:56,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1848 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:01:56,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-11-25 17:01:56,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2022-11-25 17:01:56,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 239 states have (on average 1.2552301255230125) internal successors, (300), 240 states have internal predecessors, (300), 86 states have call successors, (86), 29 states have call predecessors, (86), 30 states have return successors, (89), 86 states have call predecessors, (89), 85 states have call successors, (89) [2022-11-25 17:01:56,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 475 transitions. [2022-11-25 17:01:56,499 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 475 transitions. Word has length 132 [2022-11-25 17:01:56,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:56,500 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 475 transitions. [2022-11-25 17:01:56,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-25 17:01:56,500 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 475 transitions. [2022-11-25 17:01:56,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-25 17:01:56,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:56,503 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:01:56,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:01:56,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:01:56,711 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:01:56,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:56,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1948656716, now seen corresponding path program 1 times [2022-11-25 17:01:56,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:01:56,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419196405] [2022-11-25 17:01:56,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:01:56,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:01:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:59,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:01:59,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:59,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:01:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:59,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:01:59,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:59,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:01:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:59,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:01:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:59,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:01:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:59,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:01:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:59,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:01:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:01:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:59,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:01:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:59,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:01:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:01:59,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:01:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 17:02:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 17:02:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:02:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:02:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 17:02:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:02:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:02:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 17:02:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-25 17:02:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 17:02:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:00,209 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-11-25 17:02:00,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:00,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419196405] [2022-11-25 17:02:00,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419196405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:00,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:00,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 17:02:00,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873167007] [2022-11-25 17:02:00,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:00,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 17:02:00,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:00,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 17:02:00,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:02:00,215 INFO L87 Difference]: Start difference. First operand 356 states and 475 transitions. Second operand has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-25 17:02:06,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:06,124 INFO L93 Difference]: Finished difference Result 749 states and 1004 transitions. [2022-11-25 17:02:06,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:02:06,125 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 138 [2022-11-25 17:02:06,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:06,128 INFO L225 Difference]: With dead ends: 749 [2022-11-25 17:02:06,128 INFO L226 Difference]: Without dead ends: 414 [2022-11-25 17:02:06,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-11-25 17:02:06,130 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 596 mSDsluCounter, 1425 mSDsCounter, 0 mSdLazyCounter, 2314 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:06,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1679 Invalid, 2632 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [318 Valid, 2314 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-25 17:02:06,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-11-25 17:02:06,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 361. [2022-11-25 17:02:06,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 243 states have (on average 1.2551440329218106) internal successors, (305), 245 states have internal predecessors, (305), 86 states have call successors, (86), 29 states have call predecessors, (86), 31 states have return successors, (90), 86 states have call predecessors, (90), 85 states have call successors, (90) [2022-11-25 17:02:06,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 481 transitions. [2022-11-25 17:02:06,174 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 481 transitions. Word has length 138 [2022-11-25 17:02:06,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:06,174 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 481 transitions. [2022-11-25 17:02:06,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.923076923076923) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (24), 5 states have call predecessors, (24), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-25 17:02:06,175 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 481 transitions. [2022-11-25 17:02:06,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-25 17:02:06,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:06,177 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:06,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:02:06,177 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:02:06,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:06,178 INFO L85 PathProgramCache]: Analyzing trace with hash 37614158, now seen corresponding path program 1 times [2022-11-25 17:02:06,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:06,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368271756] [2022-11-25 17:02:06,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:06,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:06,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:02:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:06,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:02:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:06,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:02:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:06,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:02:06,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:02:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:02:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:02:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:02:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:02:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-25 17:02:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 17:02:07,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:02:07,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-25 17:02:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 17:02:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:02:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:02:07,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-25 17:02:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-25 17:02:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 17:02:07,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:07,419 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-11-25 17:02:07,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:07,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368271756] [2022-11-25 17:02:07,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368271756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:07,420 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:07,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:02:07,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599837277] [2022-11-25 17:02:07,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:07,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:02:07,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:07,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:02:07,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:02:07,424 INFO L87 Difference]: Start difference. First operand 361 states and 481 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-25 17:02:09,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:09,579 INFO L93 Difference]: Finished difference Result 756 states and 1012 transitions. [2022-11-25 17:02:09,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:02:09,580 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 138 [2022-11-25 17:02:09,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:09,584 INFO L225 Difference]: With dead ends: 756 [2022-11-25 17:02:09,584 INFO L226 Difference]: Without dead ends: 409 [2022-11-25 17:02:09,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:02:09,587 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 441 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:09,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 859 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 17:02:09,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2022-11-25 17:02:09,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 359. [2022-11-25 17:02:09,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 241 states have (on average 1.2489626556016598) internal successors, (301), 243 states have internal predecessors, (301), 86 states have call successors, (86), 29 states have call predecessors, (86), 31 states have return successors, (90), 86 states have call predecessors, (90), 85 states have call successors, (90) [2022-11-25 17:02:09,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 477 transitions. [2022-11-25 17:02:09,620 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 477 transitions. Word has length 138 [2022-11-25 17:02:09,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:09,621 INFO L495 AbstractCegarLoop]: Abstraction has 359 states and 477 transitions. [2022-11-25 17:02:09,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (24), 5 states have call predecessors, (24), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-25 17:02:09,621 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 477 transitions. [2022-11-25 17:02:09,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-25 17:02:09,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:09,623 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:09,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:02:09,624 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:02:09,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:09,625 INFO L85 PathProgramCache]: Analyzing trace with hash 2135733712, now seen corresponding path program 1 times [2022-11-25 17:02:09,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:09,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422897531] [2022-11-25 17:02:09,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:09,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:02:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:02:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:02:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:02:10,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:02:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:02:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:02:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:02:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:02:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:02:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 17:02:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:02:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:02:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:02:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:10,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:02:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:11,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-25 17:02:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:11,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:02:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:11,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-25 17:02:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:11,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-25 17:02:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:11,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 17:02:11,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:11,049 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-11-25 17:02:11,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:11,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422897531] [2022-11-25 17:02:11,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422897531] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:02:11,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368639849] [2022-11-25 17:02:11,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:11,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:11,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:02:11,052 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:02:11,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:02:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:11,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 2867 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-25 17:02:11,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:02:14,350 WARN L859 $PredicateComparison]: unable to prove that (or (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= 0 (select (select |c_#memory_$Pointer$.offset| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset)))) (exists ((aws_hash_table_is_valid_~map.base Int) (aws_hash_table_is_valid_~map.offset Int)) (not (= (select (select |c_#memory_$Pointer$.base| aws_hash_table_is_valid_~map.base) aws_hash_table_is_valid_~map.offset) 0)))) is different from true [2022-11-25 17:02:22,437 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:02:30,512 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:02:30,561 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-25 17:02:30,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:02:30,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368639849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:30,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:02:30,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2022-11-25 17:02:30,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201734992] [2022-11-25 17:02:30,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:30,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:02:30,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:30,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:02:30,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=175, Unknown=3, NotChecked=26, Total=240 [2022-11-25 17:02:30,566 INFO L87 Difference]: Start difference. First operand 359 states and 477 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-25 17:02:37,825 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:02:40,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:02:42,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:42,857 INFO L93 Difference]: Finished difference Result 705 states and 936 transitions. [2022-11-25 17:02:42,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:02:42,863 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 144 [2022-11-25 17:02:42,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:42,866 INFO L225 Difference]: With dead ends: 705 [2022-11-25 17:02:42,866 INFO L226 Difference]: Without dead ends: 365 [2022-11-25 17:02:42,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 24.7s TimeCoverageRelationStatistics Valid=64, Invalid=279, Unknown=3, NotChecked=34, Total=380 [2022-11-25 17:02:42,869 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 12 mSDsluCounter, 1994 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2454 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 478 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:42,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2454 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 339 Invalid, 1 Unknown, 478 Unchecked, 5.9s Time] [2022-11-25 17:02:42,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-11-25 17:02:42,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2022-11-25 17:02:42,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 245 states have (on average 1.2448979591836735) internal successors, (305), 247 states have internal predecessors, (305), 87 states have call successors, (87), 30 states have call predecessors, (87), 32 states have return successors, (91), 87 states have call predecessors, (91), 86 states have call successors, (91) [2022-11-25 17:02:42,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 483 transitions. [2022-11-25 17:02:42,912 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 483 transitions. Word has length 144 [2022-11-25 17:02:42,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:42,913 INFO L495 AbstractCegarLoop]: Abstraction has 365 states and 483 transitions. [2022-11-25 17:02:42,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-25 17:02:42,913 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 483 transitions. [2022-11-25 17:02:42,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-25 17:02:42,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:42,916 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:42,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:02:43,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:02:43,128 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:02:43,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:43,129 INFO L85 PathProgramCache]: Analyzing trace with hash -345482486, now seen corresponding path program 1 times [2022-11-25 17:02:43,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:43,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748927597] [2022-11-25 17:02:43,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:43,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:43,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:02:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:43,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:02:43,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:43,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:02:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:02:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:02:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:02:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:02:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:02:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:02:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:02:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:02:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:02:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:02:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:02:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:02:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:02:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:02:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:02:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:02:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 17:02:44,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-25 17:02:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:44,352 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2022-11-25 17:02:44,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:44,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748927597] [2022-11-25 17:02:44,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748927597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:44,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:44,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 17:02:44,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110056131] [2022-11-25 17:02:44,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:44,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:02:44,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:44,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:02:44,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:02:44,355 INFO L87 Difference]: Start difference. First operand 365 states and 483 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (26), 5 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-25 17:02:47,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:47,430 INFO L93 Difference]: Finished difference Result 735 states and 981 transitions. [2022-11-25 17:02:47,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:02:47,431 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (26), 5 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 149 [2022-11-25 17:02:47,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:47,434 INFO L225 Difference]: With dead ends: 735 [2022-11-25 17:02:47,434 INFO L226 Difference]: Without dead ends: 417 [2022-11-25 17:02:47,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:02:47,436 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 479 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 1569 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:47,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 1414 Invalid, 1876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1569 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-25 17:02:47,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2022-11-25 17:02:47,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 367. [2022-11-25 17:02:47,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 246 states have (on average 1.2439024390243902) internal successors, (306), 249 states have internal predecessors, (306), 87 states have call successors, (87), 30 states have call predecessors, (87), 33 states have return successors, (96), 87 states have call predecessors, (96), 86 states have call successors, (96) [2022-11-25 17:02:47,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 489 transitions. [2022-11-25 17:02:47,465 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 489 transitions. Word has length 149 [2022-11-25 17:02:47,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:47,466 INFO L495 AbstractCegarLoop]: Abstraction has 367 states and 489 transitions. [2022-11-25 17:02:47,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (26), 5 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-11-25 17:02:47,467 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 489 transitions. [2022-11-25 17:02:47,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-25 17:02:47,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:47,469 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:47,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:02:47,469 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:02:47,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:47,470 INFO L85 PathProgramCache]: Analyzing trace with hash 738758420, now seen corresponding path program 1 times [2022-11-25 17:02:47,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:47,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895459213] [2022-11-25 17:02:47,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:47,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:02:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:02:49,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:02:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:02:49,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:02:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:02:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:02:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:02:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:02:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:02:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:02:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:02:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:02:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:02:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:02:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:02:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:02:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:02:49,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:02:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 17:02:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:02:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-25 17:02:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:49,639 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-25 17:02:49,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:49,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895459213] [2022-11-25 17:02:49,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895459213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:49,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:49,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:02:49,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110518033] [2022-11-25 17:02:49,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:49,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:02:49,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:49,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:02:49,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:02:49,643 INFO L87 Difference]: Start difference. First operand 367 states and 489 transitions. Second operand has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-25 17:02:52,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:52,200 INFO L93 Difference]: Finished difference Result 425 states and 568 transitions. [2022-11-25 17:02:52,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:02:52,201 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) Word has length 154 [2022-11-25 17:02:52,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:52,204 INFO L225 Difference]: With dead ends: 425 [2022-11-25 17:02:52,205 INFO L226 Difference]: Without dead ends: 423 [2022-11-25 17:02:52,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:02:52,206 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 495 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:52,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1217 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 17:02:52,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-11-25 17:02:52,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 371. [2022-11-25 17:02:52,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 249 states have (on average 1.2409638554216869) internal successors, (309), 252 states have internal predecessors, (309), 87 states have call successors, (87), 31 states have call predecessors, (87), 34 states have return successors, (96), 87 states have call predecessors, (96), 86 states have call successors, (96) [2022-11-25 17:02:52,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 492 transitions. [2022-11-25 17:02:52,233 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 492 transitions. Word has length 154 [2022-11-25 17:02:52,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:52,234 INFO L495 AbstractCegarLoop]: Abstraction has 371 states and 492 transitions. [2022-11-25 17:02:52,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (24), 1 states have call predecessors, (24), 1 states have call successors, (24) [2022-11-25 17:02:52,235 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 492 transitions. [2022-11-25 17:02:52,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-25 17:02:52,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:52,237 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:52,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:02:52,238 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:02:52,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:52,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1403975817, now seen corresponding path program 1 times [2022-11-25 17:02:52,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:52,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004725949] [2022-11-25 17:02:52,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:52,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:53,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:02:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:53,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:02:53,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:53,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:02:53,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:53,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:02:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:53,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:02:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:53,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:53,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:53,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:02:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:53,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:02:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:53,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:02:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:53,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:02:54,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:02:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:02:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:02:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:02:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:02:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:02:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:02:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:02:54,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:02:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:02:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 17:02:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:02:54,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-25 17:02:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-25 17:02:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-25 17:02:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:54,162 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-25 17:02:54,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:54,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004725949] [2022-11-25 17:02:54,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004725949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:54,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:54,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:02:54,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535834016] [2022-11-25 17:02:54,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:54,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:02:54,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:54,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:02:54,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:02:54,165 INFO L87 Difference]: Start difference. First operand 371 states and 492 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-25 17:02:57,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:02:57,045 INFO L93 Difference]: Finished difference Result 431 states and 574 transitions. [2022-11-25 17:02:57,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:02:57,045 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 167 [2022-11-25 17:02:57,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:02:57,049 INFO L225 Difference]: With dead ends: 431 [2022-11-25 17:02:57,049 INFO L226 Difference]: Without dead ends: 429 [2022-11-25 17:02:57,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:02:57,050 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 371 mSDsluCounter, 975 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:02:57,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 1244 Invalid, 1537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-25 17:02:57,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-11-25 17:02:57,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 376. [2022-11-25 17:02:57,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 252 states have (on average 1.2380952380952381) internal successors, (312), 256 states have internal predecessors, (312), 88 states have call successors, (88), 32 states have call predecessors, (88), 35 states have return successors, (97), 87 states have call predecessors, (97), 87 states have call successors, (97) [2022-11-25 17:02:57,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 497 transitions. [2022-11-25 17:02:57,079 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 497 transitions. Word has length 167 [2022-11-25 17:02:57,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:02:57,079 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 497 transitions. [2022-11-25 17:02:57,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-25 17:02:57,080 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 497 transitions. [2022-11-25 17:02:57,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-25 17:02:57,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:02:57,083 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:02:57,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:02:57,083 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:02:57,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:02:57,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1405822859, now seen corresponding path program 1 times [2022-11-25 17:02:57,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:02:57,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878910147] [2022-11-25 17:02:57,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:02:57,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:02:57,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:02:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:02:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:02:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:02:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:02:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:02:58,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:02:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:02:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:02:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:02:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:02:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:02:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:02:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:02:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:02:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:02:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:02:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:02:58,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:02:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:02:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-11-25 17:02:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:02:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-25 17:02:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-25 17:02:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-25 17:02:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:02:58,617 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-25 17:02:58,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:02:58,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878910147] [2022-11-25 17:02:58,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878910147] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:02:58,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:02:58,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:02:58,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653314375] [2022-11-25 17:02:58,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:02:58,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:02:58,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:02:58,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:02:58,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:02:58,621 INFO L87 Difference]: Start difference. First operand 376 states and 497 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-25 17:03:02,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:02,481 INFO L93 Difference]: Finished difference Result 434 states and 576 transitions. [2022-11-25 17:03:02,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:03:02,481 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 167 [2022-11-25 17:03:02,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:02,485 INFO L225 Difference]: With dead ends: 434 [2022-11-25 17:03:02,485 INFO L226 Difference]: Without dead ends: 432 [2022-11-25 17:03:02,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:03:02,486 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 248 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:02,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 1299 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-25 17:03:02,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2022-11-25 17:03:02,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 375. [2022-11-25 17:03:02,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 252 states have (on average 1.2380952380952381) internal successors, (312), 255 states have internal predecessors, (312), 87 states have call successors, (87), 32 states have call predecessors, (87), 35 states have return successors, (96), 87 states have call predecessors, (96), 86 states have call successors, (96) [2022-11-25 17:03:02,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 495 transitions. [2022-11-25 17:03:02,539 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 495 transitions. Word has length 167 [2022-11-25 17:03:02,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:02,542 INFO L495 AbstractCegarLoop]: Abstraction has 375 states and 495 transitions. [2022-11-25 17:03:02,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-25 17:03:02,543 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 495 transitions. [2022-11-25 17:03:02,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-25 17:03:02,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:02,546 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:03:02,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:03:02,547 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:03:02,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:02,547 INFO L85 PathProgramCache]: Analyzing trace with hash 461501200, now seen corresponding path program 1 times [2022-11-25 17:03:02,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:02,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917508065] [2022-11-25 17:03:02,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:02,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:03,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:03:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:03:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:03:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:03:03,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:03:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:03:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:03:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:03:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:03:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:03:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:03:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:03:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:03:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:03:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:03:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:03:03,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:03:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 17:03:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:03:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-25 17:03:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:03,665 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-25 17:03:03,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:03,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917508065] [2022-11-25 17:03:03,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917508065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:03:03,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:03:03,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 17:03:03,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634299460] [2022-11-25 17:03:03,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:03:03,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:03:03,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:03,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:03:03,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:03:03,669 INFO L87 Difference]: Start difference. First operand 375 states and 495 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-25 17:03:10,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:10,361 INFO L93 Difference]: Finished difference Result 564 states and 772 transitions. [2022-11-25 17:03:10,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:03:10,362 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2022-11-25 17:03:10,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:10,366 INFO L225 Difference]: With dead ends: 564 [2022-11-25 17:03:10,367 INFO L226 Difference]: Without dead ends: 507 [2022-11-25 17:03:10,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:03:10,368 INFO L413 NwaCegarLoop]: 349 mSDtfsCounter, 352 mSDsluCounter, 1413 mSDsCounter, 0 mSdLazyCounter, 1914 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 2006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:10,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1762 Invalid, 2006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1914 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-25 17:03:10,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2022-11-25 17:03:10,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 379. [2022-11-25 17:03:10,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 255 states have (on average 1.2352941176470589) internal successors, (315), 258 states have internal predecessors, (315), 87 states have call successors, (87), 32 states have call predecessors, (87), 36 states have return successors, (97), 88 states have call predecessors, (97), 86 states have call successors, (97) [2022-11-25 17:03:10,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 499 transitions. [2022-11-25 17:03:10,398 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 499 transitions. Word has length 173 [2022-11-25 17:03:10,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:10,398 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 499 transitions. [2022-11-25 17:03:10,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-25 17:03:10,399 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 499 transitions. [2022-11-25 17:03:10,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-25 17:03:10,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:10,401 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:03:10,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:03:10,402 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:03:10,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:10,402 INFO L85 PathProgramCache]: Analyzing trace with hash 330410332, now seen corresponding path program 1 times [2022-11-25 17:03:10,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:10,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368592069] [2022-11-25 17:03:10,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:10,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:03:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:03:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:03:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:03:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:03:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:03:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:03:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:10,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:03:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:03:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:03:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:03:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:03:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:03:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:03:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:03:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:03:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:03:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 17:03:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:10,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:11,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:11,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:11,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:03:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:11,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-25 17:03:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:11,060 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-25 17:03:11,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:11,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368592069] [2022-11-25 17:03:11,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368592069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:03:11,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:03:11,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:03:11,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19083784] [2022-11-25 17:03:11,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:03:11,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:03:11,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:11,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:03:11,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:03:11,065 INFO L87 Difference]: Start difference. First operand 379 states and 499 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-25 17:03:15,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:15,636 INFO L93 Difference]: Finished difference Result 689 states and 916 transitions. [2022-11-25 17:03:15,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:03:15,637 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 175 [2022-11-25 17:03:15,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:15,640 INFO L225 Difference]: With dead ends: 689 [2022-11-25 17:03:15,641 INFO L226 Difference]: Without dead ends: 456 [2022-11-25 17:03:15,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:03:15,642 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 528 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 931 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 931 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:15,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 932 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 931 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-25 17:03:15,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-11-25 17:03:15,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 380. [2022-11-25 17:03:15,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 256 states have (on average 1.234375) internal successors, (316), 259 states have internal predecessors, (316), 87 states have call successors, (87), 32 states have call predecessors, (87), 36 states have return successors, (97), 88 states have call predecessors, (97), 86 states have call successors, (97) [2022-11-25 17:03:15,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 500 transitions. [2022-11-25 17:03:15,671 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 500 transitions. Word has length 175 [2022-11-25 17:03:15,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:15,671 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 500 transitions. [2022-11-25 17:03:15,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-25 17:03:15,672 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 500 transitions. [2022-11-25 17:03:15,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-25 17:03:15,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:15,674 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:03:15,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:03:15,675 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:03:15,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:15,675 INFO L85 PathProgramCache]: Analyzing trace with hash 504736646, now seen corresponding path program 1 times [2022-11-25 17:03:15,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:15,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911560219] [2022-11-25 17:03:15,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:15,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:17,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:17,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:03:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:17,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:03:17,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:17,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:03:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:17,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:03:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:17,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:17,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:17,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:17,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:03:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:17,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:03:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:17,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:03:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:17,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:17,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:03:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:17,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:03:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:17,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:17,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:03:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:18,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:03:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:18,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:03:18,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:18,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:03:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:18,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:03:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:18,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:03:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:18,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:03:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:18,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:03:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:18,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 17:03:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:18,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:18,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:18,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:18,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:03:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:18,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-25 17:03:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:18,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-25 17:03:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:18,347 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2022-11-25 17:03:18,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:18,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911560219] [2022-11-25 17:03:18,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911560219] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:03:18,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:03:18,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-25 17:03:18,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447080606] [2022-11-25 17:03:18,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:03:18,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 17:03:18,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:18,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 17:03:18,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2022-11-25 17:03:18,351 INFO L87 Difference]: Start difference. First operand 380 states and 500 transitions. Second operand has 15 states, 15 states have (on average 5.6) internal successors, (84), 9 states have internal predecessors, (84), 6 states have call successors, (32), 8 states have call predecessors, (32), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-25 17:03:24,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:24,282 INFO L93 Difference]: Finished difference Result 837 states and 1134 transitions. [2022-11-25 17:03:24,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 17:03:24,283 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 9 states have internal predecessors, (84), 6 states have call successors, (32), 8 states have call predecessors, (32), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) Word has length 186 [2022-11-25 17:03:24,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:24,287 INFO L225 Difference]: With dead ends: 837 [2022-11-25 17:03:24,287 INFO L226 Difference]: Without dead ends: 540 [2022-11-25 17:03:24,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=574, Unknown=0, NotChecked=0, Total=702 [2022-11-25 17:03:24,293 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 430 mSDsluCounter, 3048 mSDsCounter, 0 mSdLazyCounter, 3798 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 3363 SdHoareTripleChecker+Invalid, 3916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 3798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:24,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 3363 Invalid, 3916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 3798 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-25 17:03:24,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-11-25 17:03:24,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 427. [2022-11-25 17:03:24,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 290 states have (on average 1.2482758620689656) internal successors, (362), 295 states have internal predecessors, (362), 95 states have call successors, (95), 35 states have call predecessors, (95), 41 states have return successors, (109), 96 states have call predecessors, (109), 94 states have call successors, (109) [2022-11-25 17:03:24,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 566 transitions. [2022-11-25 17:03:24,326 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 566 transitions. Word has length 186 [2022-11-25 17:03:24,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:24,327 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 566 transitions. [2022-11-25 17:03:24,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 9 states have internal predecessors, (84), 6 states have call successors, (32), 8 states have call predecessors, (32), 2 states have return successors, (27), 4 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-25 17:03:24,328 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 566 transitions. [2022-11-25 17:03:24,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-25 17:03:24,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:24,331 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:03:24,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 17:03:24,331 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:03:24,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:24,332 INFO L85 PathProgramCache]: Analyzing trace with hash -941800312, now seen corresponding path program 1 times [2022-11-25 17:03:24,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:24,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669636583] [2022-11-25 17:03:24,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:24,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:03:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:03:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:03:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:03:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:03:25,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:03:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:03:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:03:25,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:03:25,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:03:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:03:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:03:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:03:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:03:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:03:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:03:25,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:03:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 17:03:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:03:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-25 17:03:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:25,599 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-25 17:03:25,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:25,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669636583] [2022-11-25 17:03:25,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669636583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:03:25,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:03:25,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 17:03:25,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463725074] [2022-11-25 17:03:25,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:03:25,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 17:03:25,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:25,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 17:03:25,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:03:25,602 INFO L87 Difference]: Start difference. First operand 427 states and 566 transitions. Second operand has 11 states, 11 states have (on average 8.0) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-25 17:03:34,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:34,203 INFO L93 Difference]: Finished difference Result 628 states and 857 transitions. [2022-11-25 17:03:34,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:03:34,203 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 179 [2022-11-25 17:03:34,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:34,208 INFO L225 Difference]: With dead ends: 628 [2022-11-25 17:03:34,208 INFO L226 Difference]: Without dead ends: 571 [2022-11-25 17:03:34,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-11-25 17:03:34,210 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 368 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 2554 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 2258 SdHoareTripleChecker+Invalid, 2653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:34,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 2258 Invalid, 2653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2554 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-25 17:03:34,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2022-11-25 17:03:34,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 435. [2022-11-25 17:03:34,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 298 states have (on average 1.2483221476510067) internal successors, (372), 303 states have internal predecessors, (372), 95 states have call successors, (95), 35 states have call predecessors, (95), 41 states have return successors, (109), 96 states have call predecessors, (109), 94 states have call successors, (109) [2022-11-25 17:03:34,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 576 transitions. [2022-11-25 17:03:34,248 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 576 transitions. Word has length 179 [2022-11-25 17:03:34,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:34,248 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 576 transitions. [2022-11-25 17:03:34,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.0) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-25 17:03:34,249 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 576 transitions. [2022-11-25 17:03:34,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-25 17:03:34,252 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:34,252 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:03:34,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 17:03:34,253 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:03:34,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:34,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1773192912, now seen corresponding path program 1 times [2022-11-25 17:03:34,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:34,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423812324] [2022-11-25 17:03:34,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:34,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:03:34,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:03:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:03:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:03:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:03:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:03:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:03:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:03:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:03:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:03:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:03:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:03:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:03:34,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:03:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:03:34,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:03:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:03:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 17:03:34,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:34,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:34,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:35,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:03:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:35,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-25 17:03:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:35,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-25 17:03:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:35,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:35,162 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-25 17:03:35,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:35,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423812324] [2022-11-25 17:03:35,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423812324] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:03:35,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:03:35,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 17:03:35,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876996538] [2022-11-25 17:03:35,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:03:35,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:03:35,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:35,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:03:35,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:03:35,165 INFO L87 Difference]: Start difference. First operand 435 states and 576 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-25 17:03:39,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:39,829 INFO L93 Difference]: Finished difference Result 570 states and 761 transitions. [2022-11-25 17:03:39,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 17:03:39,830 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 183 [2022-11-25 17:03:39,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:39,841 INFO L225 Difference]: With dead ends: 570 [2022-11-25 17:03:39,841 INFO L226 Difference]: Without dead ends: 515 [2022-11-25 17:03:39,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:03:39,848 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 532 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 1555 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 1555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:39,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 1421 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 1555 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-25 17:03:39,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2022-11-25 17:03:39,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 440. [2022-11-25 17:03:39,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 302 states have (on average 1.2450331125827814) internal successors, (376), 307 states have internal predecessors, (376), 95 states have call successors, (95), 35 states have call predecessors, (95), 42 states have return successors, (111), 97 states have call predecessors, (111), 94 states have call successors, (111) [2022-11-25 17:03:39,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 582 transitions. [2022-11-25 17:03:39,883 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 582 transitions. Word has length 183 [2022-11-25 17:03:39,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:39,884 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 582 transitions. [2022-11-25 17:03:39,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 6 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-25 17:03:39,885 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 582 transitions. [2022-11-25 17:03:39,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-25 17:03:39,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:39,887 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:03:39,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 17:03:39,888 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:03:39,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:39,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1253447627, now seen corresponding path program 1 times [2022-11-25 17:03:39,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:39,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959483159] [2022-11-25 17:03:39,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:39,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:03:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:03:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:03:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:03:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:03:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:03:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:03:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:03:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:03:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:03:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:03:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:03:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:03:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:03:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:03:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:03:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:03:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 17:03:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:40,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:03:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-25 17:03:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-25 17:03:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-25 17:03:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-25 17:03:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:40,775 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-25 17:03:40,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:40,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959483159] [2022-11-25 17:03:40,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959483159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:03:40,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:03:40,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:03:40,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194171186] [2022-11-25 17:03:40,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:03:40,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:03:40,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:40,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:03:40,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:03:40,778 INFO L87 Difference]: Start difference. First operand 440 states and 582 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-25 17:03:43,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:03:43,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:44,000 INFO L93 Difference]: Finished difference Result 986 states and 1356 transitions. [2022-11-25 17:03:44,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:03:44,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 190 [2022-11-25 17:03:44,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:44,006 INFO L225 Difference]: With dead ends: 986 [2022-11-25 17:03:44,006 INFO L226 Difference]: Without dead ends: 621 [2022-11-25 17:03:44,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:03:44,009 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 624 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 391 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 391 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:44,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 1183 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [391 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-25 17:03:44,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2022-11-25 17:03:44,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 446. [2022-11-25 17:03:44,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 307 states have (on average 1.241042345276873) internal successors, (381), 311 states have internal predecessors, (381), 96 states have call successors, (96), 35 states have call predecessors, (96), 42 states have return successors, (113), 99 states have call predecessors, (113), 95 states have call successors, (113) [2022-11-25 17:03:44,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 590 transitions. [2022-11-25 17:03:44,052 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 590 transitions. Word has length 190 [2022-11-25 17:03:44,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:44,052 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 590 transitions. [2022-11-25 17:03:44,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-25 17:03:44,053 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 590 transitions. [2022-11-25 17:03:44,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-25 17:03:44,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:44,055 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:03:44,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 17:03:44,056 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:03:44,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:44,056 INFO L85 PathProgramCache]: Analyzing trace with hash 574175373, now seen corresponding path program 1 times [2022-11-25 17:03:44,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:44,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012070042] [2022-11-25 17:03:44,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:44,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:03:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:03:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:03:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:03:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:03:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:03:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:03:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:03:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:03:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:03:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:03:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:03:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:03:44,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:03:44,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:03:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:03:44,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:03:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 17:03:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:03:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-25 17:03:44,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-25 17:03:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-25 17:03:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-25 17:03:44,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:44,821 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-25 17:03:44,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:44,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012070042] [2022-11-25 17:03:44,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012070042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:03:44,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:03:44,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 17:03:44,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287311386] [2022-11-25 17:03:44,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:03:44,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:03:44,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:44,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:03:44,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 17:03:44,825 INFO L87 Difference]: Start difference. First operand 446 states and 590 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-25 17:03:48,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:48,326 INFO L93 Difference]: Finished difference Result 923 states and 1249 transitions. [2022-11-25 17:03:48,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 17:03:48,327 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 190 [2022-11-25 17:03:48,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:48,331 INFO L225 Difference]: With dead ends: 923 [2022-11-25 17:03:48,331 INFO L226 Difference]: Without dead ends: 558 [2022-11-25 17:03:48,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:03:48,333 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 469 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 1522 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1267 SdHoareTripleChecker+Invalid, 1654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:48,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 1267 Invalid, 1654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1522 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-25 17:03:48,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2022-11-25 17:03:48,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 440. [2022-11-25 17:03:48,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 302 states have (on average 1.2384105960264902) internal successors, (374), 307 states have internal predecessors, (374), 95 states have call successors, (95), 35 states have call predecessors, (95), 42 states have return successors, (111), 97 states have call predecessors, (111), 94 states have call successors, (111) [2022-11-25 17:03:48,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 580 transitions. [2022-11-25 17:03:48,371 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 580 transitions. Word has length 190 [2022-11-25 17:03:48,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:48,372 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 580 transitions. [2022-11-25 17:03:48,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 5 states have internal predecessors, (83), 3 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-25 17:03:48,373 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 580 transitions. [2022-11-25 17:03:48,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-11-25 17:03:48,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:48,375 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:03:48,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 17:03:48,375 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:03:48,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:48,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1524954561, now seen corresponding path program 1 times [2022-11-25 17:03:48,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:48,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039761148] [2022-11-25 17:03:48,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:48,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:03:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:03:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:03:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:03:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:49,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:03:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:03:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:03:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:49,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:03:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:03:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:03:49,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:03:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:03:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:03:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:03:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:03:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:03:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:03:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:49,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 17:03:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:50,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:50,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:50,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:50,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:03:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:50,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-25 17:03:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:50,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-25 17:03:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:50,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-25 17:03:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:50,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-25 17:03:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:50,512 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2022-11-25 17:03:50,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:50,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039761148] [2022-11-25 17:03:50,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039761148] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:03:50,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619556842] [2022-11-25 17:03:50,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:50,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:03:50,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:03:50,518 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:03:50,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:03:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:51,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 3125 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-25 17:03:51,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:03:51,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 17:03:51,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-25 17:03:52,009 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-11-25 17:03:52,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:03:52,686 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-11-25 17:03:52,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619556842] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:03:52,687 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:03:52,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 13] total 19 [2022-11-25 17:03:52,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878563017] [2022-11-25 17:03:52,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:03:52,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-25 17:03:52,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:52,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-25 17:03:52,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2022-11-25 17:03:52,690 INFO L87 Difference]: Start difference. First operand 440 states and 580 transitions. Second operand has 19 states, 16 states have (on average 6.625) internal successors, (106), 14 states have internal predecessors, (106), 10 states have call successors, (43), 7 states have call predecessors, (43), 5 states have return successors, (35), 6 states have call predecessors, (35), 8 states have call successors, (35) [2022-11-25 17:03:56,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:03:56,788 INFO L93 Difference]: Finished difference Result 909 states and 1225 transitions. [2022-11-25 17:03:56,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 17:03:56,789 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 6.625) internal successors, (106), 14 states have internal predecessors, (106), 10 states have call successors, (43), 7 states have call predecessors, (43), 5 states have return successors, (35), 6 states have call predecessors, (35), 8 states have call successors, (35) Word has length 186 [2022-11-25 17:03:56,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:03:56,793 INFO L225 Difference]: With dead ends: 909 [2022-11-25 17:03:56,793 INFO L226 Difference]: Without dead ends: 560 [2022-11-25 17:03:56,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 420 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=140, Invalid=790, Unknown=0, NotChecked=0, Total=930 [2022-11-25 17:03:56,795 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 648 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 2852 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 3272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 2852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:03:56,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 2282 Invalid, 3272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 2852 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-25 17:03:56,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-11-25 17:03:56,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 474. [2022-11-25 17:03:56,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 318 states have (on average 1.2264150943396226) internal successors, (390), 322 states have internal predecessors, (390), 111 states have call successors, (111), 38 states have call predecessors, (111), 44 states have return successors, (127), 113 states have call predecessors, (127), 110 states have call successors, (127) [2022-11-25 17:03:56,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 628 transitions. [2022-11-25 17:03:56,839 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 628 transitions. Word has length 186 [2022-11-25 17:03:56,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:03:56,840 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 628 transitions. [2022-11-25 17:03:56,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 6.625) internal successors, (106), 14 states have internal predecessors, (106), 10 states have call successors, (43), 7 states have call predecessors, (43), 5 states have return successors, (35), 6 states have call predecessors, (35), 8 states have call successors, (35) [2022-11-25 17:03:56,840 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 628 transitions. [2022-11-25 17:03:56,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-25 17:03:56,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:03:56,842 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:03:56,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:03:57,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 17:03:57,051 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:03:57,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:03:57,051 INFO L85 PathProgramCache]: Analyzing trace with hash 3394956, now seen corresponding path program 1 times [2022-11-25 17:03:57,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:03:57,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330118705] [2022-11-25 17:03:57,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:03:57,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:03:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:57,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:03:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:03:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:03:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:03:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:03:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:03:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:03:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:03:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:03:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:03:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:03:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:03:57,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:03:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:03:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:03:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:03:57,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:03:57,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 17:03:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:03:57,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:03:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:03:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-25 17:03:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:03:57,681 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-25 17:03:57,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:03:57,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330118705] [2022-11-25 17:03:57,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330118705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:03:57,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:03:57,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:03:57,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123659344] [2022-11-25 17:03:57,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:03:57,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:03:57,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:03:57,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:03:57,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:03:57,685 INFO L87 Difference]: Start difference. First operand 474 states and 628 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-25 17:04:02,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:02,594 INFO L93 Difference]: Finished difference Result 797 states and 1060 transitions. [2022-11-25 17:04:02,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:04:02,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 181 [2022-11-25 17:04:02,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:02,598 INFO L225 Difference]: With dead ends: 797 [2022-11-25 17:04:02,599 INFO L226 Difference]: Without dead ends: 551 [2022-11-25 17:04:02,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-25 17:04:02,601 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 297 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 1145 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:02,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1024 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1145 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-25 17:04:02,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2022-11-25 17:04:02,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 476. [2022-11-25 17:04:02,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 320 states have (on average 1.225) internal successors, (392), 324 states have internal predecessors, (392), 111 states have call successors, (111), 38 states have call predecessors, (111), 44 states have return successors, (127), 113 states have call predecessors, (127), 110 states have call successors, (127) [2022-11-25 17:04:02,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 630 transitions. [2022-11-25 17:04:02,677 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 630 transitions. Word has length 181 [2022-11-25 17:04:02,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:02,678 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 630 transitions. [2022-11-25 17:04:02,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (27), 6 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2022-11-25 17:04:02,678 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 630 transitions. [2022-11-25 17:04:02,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-25 17:04:02,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:02,681 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:02,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 17:04:02,682 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:04:02,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:02,682 INFO L85 PathProgramCache]: Analyzing trace with hash 2127101888, now seen corresponding path program 1 times [2022-11-25 17:04:02,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:02,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449347970] [2022-11-25 17:04:02,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:02,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:04:06,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-25 17:04:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-25 17:04:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:04:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:04:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:04:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:04:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 17:04:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-25 17:04:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:04:06,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-25 17:04:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:04:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:04:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 17:04:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-25 17:04:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-25 17:04:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 17:04:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 17:04:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:04:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-25 17:04:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:04:06,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-11-25 17:04:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:04:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:04:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-25 17:04:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-25 17:04:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-25 17:04:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:04:06,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:04:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,706 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-11-25 17:04:06,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:06,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449347970] [2022-11-25 17:04:06,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449347970] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:04:06,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689617576] [2022-11-25 17:04:06,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:06,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:06,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:06,725 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:04:06,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:04:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:08,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 3206 conjuncts, 63 conjunts are in the unsatisfiable core [2022-11-25 17:04:08,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:04:08,182 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-25 17:04:08,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:04:08,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689617576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:04:08,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:04:08,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 13 [2022-11-25 17:04:08,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924272714] [2022-11-25 17:04:08,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:04:08,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:04:08,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:08,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:04:08,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-11-25 17:04:08,185 INFO L87 Difference]: Start difference. First operand 476 states and 630 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2022-11-25 17:04:08,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:04:08,666 INFO L93 Difference]: Finished difference Result 945 states and 1249 transitions. [2022-11-25 17:04:08,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:04:08,667 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 189 [2022-11-25 17:04:08,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:04:08,670 INFO L225 Difference]: With dead ends: 945 [2022-11-25 17:04:08,670 INFO L226 Difference]: Without dead ends: 478 [2022-11-25 17:04:08,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:04:08,673 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 83 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:04:08,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2080 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:04:08,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-11-25 17:04:08,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2022-11-25 17:04:08,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 321 states have (on average 1.2242990654205608) internal successors, (393), 326 states have internal predecessors, (393), 111 states have call successors, (111), 38 states have call predecessors, (111), 45 states have return successors, (128), 113 states have call predecessors, (128), 110 states have call successors, (128) [2022-11-25 17:04:08,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 632 transitions. [2022-11-25 17:04:08,729 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 632 transitions. Word has length 189 [2022-11-25 17:04:08,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:04:08,729 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 632 transitions. [2022-11-25 17:04:08,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2022-11-25 17:04:08,730 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 632 transitions. [2022-11-25 17:04:08,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-25 17:04:08,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:04:08,732 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:08,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:04:08,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:08,945 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:04:08,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:08,946 INFO L85 PathProgramCache]: Analyzing trace with hash 512785601, now seen corresponding path program 1 times [2022-11-25 17:04:08,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:08,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844334492] [2022-11-25 17:04:08,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:08,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:09,045 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:04:09,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305112525] [2022-11-25 17:04:09,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:09,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:04:09,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:09,047 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:04:09,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b729fe6b-d411-4078-abc5-e24227f4ee09/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:04:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:10,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 3311 conjuncts, 334 conjunts are in the unsatisfiable core [2022-11-25 17:04:10,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:04:10,998 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-25 17:04:11,352 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-25 17:04:11,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-25 17:04:11,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 17:04:12,019 INFO L321 Elim1Store]: treesize reduction 112, result has 28.7 percent of original size [2022-11-25 17:04:12,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 142 treesize of output 166 [2022-11-25 17:04:12,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-25 17:04:12,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:04:12,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 17:04:12,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 17:04:12,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-25 17:04:12,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-25 17:04:13,712 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-25 17:04:13,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2022-11-25 17:04:13,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:04:13,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-11-25 17:04:15,001 INFO L321 Elim1Store]: treesize reduction 313, result has 19.5 percent of original size [2022-11-25 17:04:15,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 12 new quantified variables, introduced 13 case distinctions, treesize of input 1402 treesize of output 1548 [2022-11-25 17:12:15,391 WARN L233 SmtUtils]: Spent 8.00m on a formula simplification. DAG size of input: 697 DAG size of output: 93 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 17:12:15,393 INFO L321 Elim1Store]: treesize reduction 3821, result has 5.6 percent of original size [2022-11-25 17:12:15,399 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 36 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 40 new quantified variables, introduced 113 case distinctions, treesize of input 6630 treesize of output 24798 [2022-11-25 17:12:22,478 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (select (select v_arrayElimArr_19 (select (select v_arrayElimArr_26 |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base|) |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset|)) |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset|) |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base|) [2022-11-25 17:12:24,551 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (+ |v_ULTIMATE.start_aws_hash_table_put_harness_#t~mem1325#1.offset_5| 24) |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset|) [2022-11-25 17:12:26,564 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (+ |v_ULTIMATE.start_aws_hash_table_put_harness_#t~mem1325#1.offset_5| 24) |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset|) [2022-11-25 17:12:28,704 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base| (select (select v_arrayElimArr_26 |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base|) |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset|)) [2022-11-25 17:12:28,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:12:32,189 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base| (select (select v_arrayElimArr_26 |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base|) |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset|)) [2022-11-25 17:12:32,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 17:12:34,268 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (let ((.cse0 (select (select v_arrayElimArr_26 |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base|) |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset|))) (= (select (select v_arrayElimArr_19 .cse0) |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset|) .cse0)) [2022-11-25 17:12:36,355 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (let ((.cse0 (select (select v_arrayElimArr_26 |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base|) |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset|))) (= (select (select v_arrayElimArr_19 .cse0) |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset|) .cse0)) [2022-11-25 17:12:38,487 WARN L161 IndexEqualityManager]: solver failed to check if following equality is implied: (= (select (select v_arrayElimArr_19 (select (select v_arrayElimArr_26 |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base|) |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset|)) |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.offset|) |ULTIMATE.start_aws_hash_table_put_harness_~#map~0#1.base|) [2022-11-25 17:12:39,604 INFO L217 Elim1Store]: Index analysis took 9442 ms